Tasawar Hayat

• Doctor of Philosophy
• Distinguished Tenured Professor at Quaid-i-Azam University

This study discusses the unsteady Casson fluid flow over a rotating cone. The effects of Dufour and Soret, MHD, mixed convection, thermal radiation and chemically reactive species are also considered. The modeled governing equations are solved by using the Homotopy technique. We start the analysis by comparing the current results with the existing...

In this paper, we study bioconvection radiative flow of power-law nanofluid. Nanofluid characteristics are incorporated by utilizing the Buongiorno model. The influence of motile gyrotactic microorganism is retained. Magnetohydrodynamics and time-dependent aspects are under consideration. Related governing expressions are transformed into dimension...

Background and objective: Magnetohydrodynamic effect has various industrial applications in crystal growth, manufacturing, nuclear reactor cooling, mineral casting, polymer extrusion, cable coating, metallurgy, liquid--metal cooling etc. In view of these application here we addressed the magnetohydrodynamic radiative Reiner-Rivlin fluid flow by str...

Magnetohydrodynamic entropy optimized flow of Reiner-Rivlin liquid by stretched cylinder is addressed. Thermal relation comprises viscous dissipation, heat generation, Ohmic heating and radiation. Chemically reactive flow of binary reaction is accounted. Entropy generation is explored. Non-linear differential systems are numerically solved by Newto...

In this paper, a reaction-diffusion COVID-19 model is proposed to explore how vaccination-isolation strategies affect the development of the epidemic. First, the basic dynamical properties of the system are explored. Then, the system's asymptotic distributions of endemic equilibrium under different conditions are studied. Further, the global sensit...

Hybrid nanofluid bounded between two infinite parallel surfaces in presence of D-F (Darcy-Forchheimer) porous medium is explored in this analysis. Heat transport is explored by C-C (Cattaneo-Christov) heat flux and thermal radiation. Flow is originated due to squeezing of upper and stretching infinite surfaces. Entropy and Bejan number are part of...

Mixed convective hydrodynamic flow of Reiner-Rivlin fluid by a stretching cylinder is studied. Convective conditions are addressed. Soret and Dufour characteristics are considered. Thermal relation is developed through Ohmic heating, radiation, heat generation and viscous dissipation. First chemical reaction and entropy generation are considered. B...

Current analysis highlights the aspects of different nanoparticles in peristalsis with entropy generation. Mathematical equations of considered problem are modelled via conservation laws for mass, momentum and energy. Such equations contain variable viscosity, nonlinear thermal radiation, viscous dissipation, heat generation/absorption and mixed co...

The objective here is to address the typographical errors and points mentioned recently by comments and discussion for different studies. The contents here are useful for several questions and comments related to issues for heat flows, peristaltic flows, Hall current effects and similarity variables.

In this paper, we examine a stochastic avian influenza model with a nonlinear incidence rate within avian populations and the psychological effect within the human population, where susceptible humans reduce their contact with infected avians as the number of infected humans increases. For the deterministic model, the basic reproduction number \(\m...

This article addresses a new odd entire function of order one structured by the Fourier sine integral, which is the solution of the one-dimensional diffusion equation in theory of modular form.

In this article we suggest the entire functions associated with the L-functions attached to cusp forms. The entire function defined by the Fourier cosine transform is the solution for the diffusion equation in one-dimensional case. We propose three conjectures for the zeros of three entire functions of order one via theory of entire functions.

Entropy generation for convective magnetized Reiner-Rivlin liquid conveying tiny particles stretched flow is addressed. Energy expression comprises dissipation, Ohmic heating, and radiation. Buongiorno model (thermophoresis and random diffusions) for nanomaterial is employed. Isothermal reaction has been also addressed. Non– dimensional differentia...

Although the long‐term dynamics of the prey‐predator model has analyzed in the passing decades, the threshold of extinction and persistence has not been well unified, especially the higher order perturbation affects the phytoplankton‐zooplankton dynamics. Here, we formulate a stochastic phytoplankton‐zooplankton model with nonlinear perturbation. A...

Background and objective Hybrid nanomaterials is a material which combines chemical and physical characteristics of various liquids instantaneously and gives these characteristics in a uniform phase. Nanotechnology are prominent in various fields of engineering, biomedicine, industrial, advanced nanotechnology, pharmaceuticals and biological engine...

The objective of this paper is to discuss the entropy generation in electromagnetohydrodynamic (EMHD) Darcy–Forchheimer nanomaterial flow. Porous space by Darcy–Forchheimer relation is characterized. Thermal expression comprises of radiation, heat generation, electric and magnetic fields and dissipation. Buongiorno model (thermophoresis and random...

Background and objective Entropy production is novel prospective in many thermodynamic phenomena with applications in heat polymer processing optimization. Importance of entropy optimization is noticed in heat exchangers, combustion, thermal systems, nuclear reactions, turbine systems, porous media and many others. Entropy optimization is employed...

The COVID-19 epidemic has infected millions of people and cast a shadow over the global economic recovery. To explore the epidemic’s transmission law and provide theoretical guidance for epidemic prevention and control. In this paper, we investigate a novel SEIR-A reaction-diffusion COVID-19 system with direct and aerosol transmission. First, the s...

Magnetohydrodynamic Darcy–Forchheimer nanoliquid flow with entropy generation subject to stretched sheet is explored. Thermal expression with ohmic heating, dissipation and radiation is taken. In addition, random and thermophoresis motion impacts are considered. Soret and Dufour effects are addressed. Physical features of the entropy rate are analy...

Here, our main aim is to examine the impacts of Dufour and Soret in a radiative Darcy–Forchheimer flow. Ohmic heating and the dissipative features are outlined. The characteristics of the thermo-diffusion and diffusion-thermo effects are addressed. A binary chemical reaction is deliberated. To examine the thermodynamical system performance, we disc...

Nanofluids have recently been widely used in energy technologies and physiological processes. These fluids have already demonstrated significant interest in the thermal amplification of numerous industrial sectors. Therefore, the present work investigates the mixed convective peristaltic flow of Carreau-Yasuda nanoliquid in presence of slip conditi...

The current article investigates the magnetohydrodynamic (MHD) radiative peristaltic flow of a couple stress nanoliquid in a symmetric channel. Thermally convective and zero mass flux conditions are imposed on flexible channel walls. Impacts of Joule heating and viscous dissipation are considered. Nanofluid model consists of important features Brow...

Background and objective Flow due to the Darcy-Forchheimer medium is an important perspective in various geophysics, industrial processes, geothermal energy, and thermodynamic processes. The importance of the Darcy-Forchheimer medium is noticed in technical, mechanical, industrial, and scientific fields including atomic waste archive, artificial di...

In this paper, we couple population dynamics and evolutionary game theory to establish a prey–predator system in which individuals in the predator population need to choose between group hunting strategies and isolated hunting strategies. This system includes two types of delay: fitness delay and hunting delay. In the absence of delays, we discuss...

Here hydrodynamic Darcy-Forchheimer nanofluid flow with entropy rate by a porous surface is examined. Mathematical background of current flow is developed through implementing single-phase approach. Here silver (Ag) and gold (Au) are used as nanoparticles, while sodium alginate ((C6H7NaO6)n) is considered as base fluid. Moreover, the impact of radi...

Mass and cost tradeoffs by deploying three optimized spars, made of all-glass, hybrid and all-carbon composites, applied to a publicly available large-scale composite blade of 100 m in length for a 13.2 MW wind turbine, are explored. The blade mass and cost minimizations are calculated for two design load cases, generating the worst aerodynamic loa...

Entropy generated in magnetohydrodynamic flow by a porous surface is an examined porous medium through the Darcy–Forchheimer relation is discussed. A thermal expression consists of dissipation, heat generation, Joule heating, and radiation. A first-order chemical reaction is studied. By using appropriate variables, the nonlinear systems are transfo...

In this paper, we propose a reaction–diffusion predator–prey model with fear effect under a predator‐poisoned environment. First, we analyze the existence and stability of constant positive steady states. Second, taking the cost of minimum fear as the bifurcation parameter, the direction and stability of spatially homogeneous/inhomogeneous periodic...

The purpose of this research is to study, investigate, and analyze a class of temporal time-FNEE models with time-FCDs that are indispensable in numerous nonlinear wave propagation phenomena. For this purpose, an efficient semi-analytical algorithm is developed and designed in view of the residual error terms for solving a class of fifth-order time...

Entropy analysis for magnetohydrodynamic (MHD) unsteady flow of Prandtl fluid by a stretchable surface is addressed. Thermal transport with radiation, magnetic field and dissipation is taken. Physical behaviors of Soret and Dufour impacts are examined. Features of entropy have been deliberated. Mass transfer with first order chemical reaction is ad...

Here we examine the time-dependent viscous nanofluid flow with induced magnetic field. Energy expression comprising dissipation and radiation is accounted. Additionally Brownian movement and thermophoresis have been addressed. Thermal expression examines the thermodynamical system performance. Flow subject to first order reaction is chemically reac...

The current article is to classify advanced features of unsteady magnetohydrodynamics (MHD) flow by a rotary cone. Energy expression takes into account the radiation, dissipation and nanofluid features. Nonlinear differential system is based upon conservation laws of mass, linear momentum and energy. The resultant structure of solutions is associat...

In this paper, we consider a high-dimensional stochastic HIV/AIDS model that incorporates both multiple stages treatment and higher order perturbation. Firstly, we establish sufficient criteria for the existence of a unique ergodic stationary distribution by making use of stochastic Lyapunov analysis method. Stationary distribution shows that the d...

In this paper, we investigate the dynamics of a high‐dimensional human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) model with treatment and standard incidence, which is perturbed by telegraph noise. The switching is formulated by a continuous time Markov chain. Firstly, we show the existence and uniqueness of the global p...

In this paper, we propose a predator-prey system with fear effect and predator death due to toxins based on the phenomenon that African predators death due to eating toxin-carrying carcasses. First, the existence and stability of equilibria are proved. Second, the conditions for the occurrence of different types of bifurcations are established by v...

Background and objective Non-Newtonian (Reiner-Rivlin) nanofluid is novel prospective in various biology and biomedical (medicine) engineering processes and in many other biological science. In addition, various biological liquids, such as saliva, synovial liquid, blood have non-Newtonian behavior and can demonstrate important viscoelastic characte...

We formulate and concern a diffusive delayed predator–prey system with herd behavior and fear effect; an Allee effect term and prey chemotaxis are both considered. We first investigate the stability of the system under the strong Allee effect and weak Allee effect without spatial diffusion or time delay. For the spatiotemporal system, the constant...

Here, we investigate magnetohydrodynamic flow of an incompressible Reiner–Philippoff fluid over a stretched surface. The stretching property of the sheet induced flow. Joule heating and dissipation effects are considered in energy communication. The energy equation is developed through the first law of thermodynamics. Irreversibility analysis is co...

The range of FPDEs is a leading bind between theoretical mathematics and its implementations. FPDEs administer a wide territory of physical real phenomena like binary fluid mixtures problems. This analysis intends to utilize results on Lie symmetry analysis, explicit series solutions, and conservation laws for the nonlinear TFPFE in two-dimensional...

In this article flow of third grade, nanofluid in presence of bioconvection by a stretched sheet is examined. Motile microorganism is addressed. Surface is subject to melting effect. Heat transfer is examined through viscous dissipation and thermal radiation. Buongiorno model elaborated nanofluid features. Uniform applied magnetic field is taken no...

We propose a stochastic SIR model with two different diseases cross-infection and immunization. The model incorporates the effects of stochasticity, cross-infection rate and immunization. By using stochastic analysis and Khasminski ergodicity theory, the existence and boundedness of the global positive solution about the epidemic model are firstly...

Purpose This study aims to explore the combined impacts of velocity and thermal slips on hybrid nanomaterial (GO+Ag+kerosene oil) bounded between two parallel infinite walls (plates). Both the walls are separated by a distance. The upper wall is subjected to squeezing with velocity, while the lower wall stretches with velocity. A uniform magnetic f...

The theme of this paper is to scrutinize hydromagnetic flow of Jeffrey fluid subject to stretched curved sheet. Heat expression is developed through dissipation, magnetic force and radiation. Entropy generation is also studied. First order isothermal reaction is examined. Nonlinear ordinary differential systems are found through adequate transforma...

Here we simulate heat transfer analysis for radiative flow of nanomaterials by a curved stretched sheet. Radiation, heat generation and dissipation effects are addressed in heat expression. Nickel zinc ferrite (NiZnFe2O4) and manganese zinc ferrite (MnZnFe2O4) are used as the nanoparticles and engine oil (C8H18) as a base liquid. Irreversibility an...

In this paper, we developed and studied a stochastic HIV model with nonlinear perturbation. Through a rigorous analysis, we firstly showed that the solution of the stochastic model is positive and global. Then, by employing suitable stochastic Lyapunov functions, we prove that the stochastic model admit a unique ergodic stationary distribution. In...

In present communication irreversibility analysis in Sutterby nanofluid flow towards stretching permeable surface is analyzed. Dissipation, heat flux, heat source/sink and Joule heating impacts are scrutinized in energy expression. Physical description of irreversibility analysis is deliberated through second law of thermodynamics. Thermophoresis a...

In this paper, we study a three-dimensional stochastic vegetation–water model in arid ecosystems, where the soil water and the surface water are considered. First, for the deterministic model, the possible equilibria and the related local asymptotic stability are studied. Then, for the stochastic model, by constructing some suitable stochastic Lyap...

A computational approach is delineated for mass and heat transport enhancement/reduction process to control the drift of nanofluid. The fluid is drifting on the inclined stretched surface. This numerical study demands the resolution of fundamental (conservation momentum, mass transfer, and energy) equations and for which computational proficiency i...

The article explores the link between lending rates and real output asymmetries and bankruptcy costs across US industries. The results document that bankruptcy costs impact such asymmetries, indicating stronger financial frictions in those industries, which are expected to delay the recovery of firms in stressful events.

Considering the survival regulation mechanisms of many groups of animals and the complexity of random variations in ecosystem, in this paper, we mainly formulate and study a stochastic non-autonomous population model with Allee effects and two mean-reverting Ornstein–Uhlenbeck processes. First, the biological implication of introducing the Ornstein...

In this paper, we investigate an SIRI epidemic model with nonlinear incidence rate and high‐order stochastic perturbation. First, we obtain a stochastic threshold R0P related to the basic reproduction number R0. A key contribution of our paper is to derive the existence and uniqueness of an ergodic stationary distribution of the stochastic model if...

Many turbidostat models are affected by environmental noise due to various complicated and uncertain factors, and Ornstein-Uhlenbeck process is a more effective and precise way. We formulate a stochastic turbidostat system incorporating Ornstein-Uhlenbeck process in this paper and develop dynamical behavior for the stochastic model, which includes...

Numerical study for flow of a hybrid nanofluid between two coaxial cylinders organized. Nanomaterial consists of graphene oxide (GO) and copper (Cu) nanoparticles in Kerosene oil basefluid. This hybrid nanofluid is taken between two coaxial cylinders. Inner cylinder is fixed while the outer cylinder exhibits rotation. A uniform magnetic field is ta...

Entropy generation is a novel potential in various thermodynamic processes and presents dynamic applications in thermal polymer processing optimization. The significance of entropy generation is observed in heat exchangers, combustion, turbine systems, thermal systems, porous media, nuclear reactions etc. In view of such thermal applications, the p...

In this paper, a nitrogen fixation game system with two time delays under nitrogen limitation is investigated. Firstly, we discuss the existence and local stability of the equilibrium points for the nondelay system. Then the nitrogen fixation delay and strategy-dependent delay are used as bifurcation parameters to analyze the local stability and th...

In this paper, we propose a stochastic predator–prey model with hunting cooperation and nonlinear perturbation of white noise. The sufficient criteria for the existence of a unique ergodic stationary distribution are established by constructing suitable Lyapunov functions. It reveals that the white noise has a significant impact on the dynamical be...

Infectious disease transmission, mainly affected by media coverage and stochastic perturbations, has imposed great social financial burden on the community in the past few decades and even threatened public health. However, there are few studies devoted to the theoretical dynamics of epidemic models with media coverage and biologically reasonable s...

Recently, the stochastic θ-threshold method has been proposed to analyze the impact of second-order perturbations on disease persistence. In this paper, considering the complexity of the environmental variations in the actual situation, we construct and study a stochastic staged progression HIV/AIDS infection model with third-order perturbations. F...

The current investigation deals with entropy analysis for radiative flow of nanomaterials between two heated rotating disks. Titanium ([Formula: see text] and [Formula: see text]) and Graphene oxides are taken as nanoparticles. Water ([Formula: see text]) is used as a conventional base liquid. Dissipation and radiation effects are incorporated in e...

This paper studies the identification problems of a nonlinear finite impulse response system with saturation nonlinearity. Introducing a symbolic function, an over-parameterization gradient-based iterative algorithm is presented for estimating the parameters of the nonlinear system with saturation nonlinearity. In order to enhance the computational...

Considering the effect of stochasticity including white noise and colored noise, this paper aims to study a hybrid stochastic cholera epidemic model with waning vaccine‐induced immunity and nonlinear telegraph perturbations. First, we derive a critical value ℛ0C related to the basic reproduction number ℛ0 of the deterministic model. The key aim of...

MHD stagnation point flow of Jeffrey nanomaterials towards stretching sheet is described. Heat and mass fluxes are based upon relation by Cattaneo-Christov theory. Resulting nonlinear systems for ODEs are obtained. OHAM is employed to develop convergent solutions. Variation of sundry variables on temperature, velocity and concentration are delibera...

Heat transportation is a novel prospective in many thermal processes and presents dynamic applications in industrial and thermal polymer processing optimization. The importance of heat transportation is noted in heat exchangers, production of crude oils, combustion, petroleum reservoirs turbine systems, thermal systems, porous media, modeling of re...

The theme of this paper is to scrutinize the irreversibility analysis in hydromagnetic flow of Reiner-Rivlin nanoliquid due to stretching rotating disk. Entropy expression is developed by first and second laws of thermodynamics. Joule heating, radiation and dissipation are scrutinized. Brownian and thermophoresis diffusion characteristics are addre...

Here we simulate entropy and melting analyses for flow of third grade nanofluid subject to a Riga plate. Fluid flow is produced by stretched surface. Melting condition is examined. Energy equation is utilized by employing the thermodynamics first law. Radiation, heat source/sink and dissipation effects are discussed. Random and thermophoresis motio...

Soil is one of the four pillars alongside water, air, and light, upon which the structure of life is built. FAO has declared 5th December as World Soil Day. It's celebrated . all around the globe to convey a message regarding the importance of soil every year. Being Pakistan's top-ranked university, QAU also gives special attention to this day as s...

This paper focuses on the spread dynamics of an HIV/AIDS model with multiple stages of infection and treatment, which is disturbed by both white noise and telegraph noise. Switching between different environmental states is governed by Markov chain. Firstly, we prove the existence and uniqueness of the global positive solution. Then we investigate...

Correction for ‘Heteroaggregation behavior of graphene oxide on Zr-based metal–organic frameworks in aqueous solutions: a combined experimental and theoretical study’ by Jie Li et al. , J. Mater. Chem. A , 2017, 5 , 20398–20406, https://doi.org/10.1039/C7TA06462D.

It is significant to fit a Gaussian function with the observation data for artificial intelligence or other engineering fields. Considering the influence of noises, this article proposes a nonlinear optimization method for fitting the Gaussian activation functions. By means of the gradient search and the Newton search, a direct gradient-based itera...

Nanofluids based on CNTs/ethylene glycol have a potential role in contributing to industrial applications like heat exchangers, domestic refrigerator, electronics cooling, etc. The aim and novelty of the present research is to communicate the significance of the Coriolis force and Darcy-Forchheimer stretched flow of ethylene glycol (EG) conveying c...

Birth vaccinations are becoming more common in society. In this paper, we describe the developed stochastic susceptible-vaccinated-infected-recovered (SVIR) epidemic model with vaccination of newborns that enable us to concern the stationary distribution and further density function. By constructing a series suitable Lyapunov function, we derive th...

Here magnetohydrodynamic (MHD) bioconvection Walter-B nanofluid flow due to stretched sheet is considered. Significance of motile gyrotactic microorganisms and melting phenomena are scrutinized. Energy equation is assisted with Brownian motion, thermal radiation, Joule heating and thermophoresis diffusion. Diffusion-thermo and thermo diffusion impa...

In this study, unsteady boundary layer flow with Casson nanofluid within the sight of chemical reaction toward a stretching sheet has been analyzed mathematically. The fundamental motivation behind the present examination is to research the influence of different fluid parameters, in particular, Casson fluid β ( 0.2 ≤ β ≤ 0.4 ) , thermophoresis N t...

This work develops the bioconvective peristaltic transport of nanoliquid with gyrotactic microorganisms. Channel walls are considered symmetric and elastic nature. Partial slip conditions are imposed. Nanofluid considered in this study features the impacts of Brownian motion and thermophoresis. Consequences of Hall current and thermal radiation are...

The simultaneous parameter and state estimation for a multi-input multi-output (MIMO) state space system from a set of measurement data is taken into account in this paper. Firstly, in line with the number of the system outputs, the considered MIMO system is transformed to some subsystems, which lessens the dimensions and the number of the paramete...

This analysis emphasizes impacts of CNTs (Carbon nanotubes) during Darcy–Forchheimer squeezed flow. Melting heat transfer process is addressed. Water and gasoline are treated as baseliquid. By transformation method non-linear system of ODEs are obtained from the flow field equations (PDEs). Further the emerged flow problem is solved via OHAM. Influ...

Three-dimensional stretched flow of carbon nanotubes with variable thickness is examined. Christov proposed non-Fourier heat flux to capture impact of thermal relaxation time. Suitable transformations are used to obtain nonlinear ordinary differential systems. Convergent series solutions are derived. Influence of certain variables on the fluid prop...

Due to the complex set of abiotic and biotic interaction variables in the ecosystems, the dynamics of animal populations are generally considered to be driven in astate‐dependent manner. This paper presents an analysis of a stochastic Nicholson's blowflies model with distributed delay, which consists of the existence and uniqueness of globally posi...

The melting phenomenon in two-dimensional (2D) flow of fourth-grade material over a stretching surface is explored. The flow is created via a stretching surface. A Darcy-Forchheimer (D-F) porous medium is considered in the flow field. The heat transport is examined with the existence of the Cattaneo-Christov (C-C) heat flux. The fourth-grade materi...

The addressed work explains SWCNTs (Single walled carbon nanotubnes) and MWCNTs (Multi walled carbon nanotubnes) nanofluid flow under the influences of temperature dependent viscosity and mixed convection. Comparative study of SWCNTs and MWCNTs suspended in base liquid is presented. Further heat and mass transfer are addressed for nanofluid effecte...

The theme of this article is to scrutinize the entropy rate in hydromagnetic flow of Reiner–Philippoff nanofluid by a stretching surface. Energy equation is developed through first law of thermodynamic with dissipation and Joule heating. Furthermore, random and thermophoretic motion is discussed. Additionally, binary reaction is discussed. Physical...

In this paper, we consider a cross-diffusion prey-predator system with fear effect and prey refuge. The upper and lower bounds of the system are obtained by using priori estimates and Harnack Inequality. Then sufficient conditions for the local stability and global stability of the system are established. We obtain that the cross-diffusion coeffici...

This work studies bio-convective thixotropic nanomaterial flow due to stretchable surface. Importances of bio-convection and melting impact are examined. Nanofluid significance through thermophoresis and Brownian diffusion is considered. Radiation, magnetic field and Joule heating effects are assumed present. Dimensionless variables are used to tra...

This exploration examines unsteady magnetohydrodynamic (MHD) three-dimensional flow of viscous material between rotating plates subject to radiation, Joule heating and chemical reaction. The non-linear partial differential system is re-structured into the ordinary differential expressions by the implication of appropriate transformations. The devel...

Hybrid nanofluid gains attention of scientists due to its dynamic properties in various fields, and thus, hybrid nanofluids can be taken as an innovative form of nanofluids. Even though analysts acquire tremendous results in the field of hybrid nanofluids but yet no study has been carried out to predict magnetohydrodynamic effects in such fluid mod...

This paper conducts a systematic accounting on the use of China’s pastureland in the world economy by using systems embodiment analysis. This study is in direct association with a pioneering paper “Embodied pasture land use change in China 2000–2015: from the perspective of globalization” (Guo et al., 2019). Both the previous and the present work e...

In this analysis, the fractional sine-Gordon model in the time-dependent variable domain using Caputo non-integer order basis derivative is presented. The main purpose is to utilize the adaptation of theRKHAto construct PNS to various forms of TFSGM subject to the specific DBC. Several theoretical results are employed to interpret PNSs to such frac...

Numerical approach is implemented for irreversibility analysis of second grade nanomaterials flow with slip and Lorentz force effects. Joule heating and radiation effects are present in heat expression. Thermophoresis and random motion characteristics are incorporated. Entropy analysis is studied through thermodynamics second law. The governing par...

In the last few decade nanoparticles provide numerous challenged in the many field of science. The nanoparticles suspended in different base liquids can transform the flow of fluids and heat transformation properties. Keeping this fact in mind this research article communicated theoretically to study the collective effects of mixed convective radia...

In this paper we have computed squeezing channel flow of hybrid nanofluid (Al2O3+SiO2+ Water). The lower surface of the channel is subjected to stretching property. Upper surface moves (squeezes) towards lower surface. Heat transport is explored through Cattaneo-Christov (C-C) heat flux and convective boundary condition. This model is constructed v...

This research reports stagnation flow of Jeffrey nanofluid toward a permeable stretching cylinder. Brownian motion, thermophoresis, thermal radiation and viscous dissipation are explored. Convective heat-mass conditions are implemented. Moreover, activation energy is taken into account. Transformations (variables) are utilized in order to convert P...

Our main intension behind this work is to investigate Prandtl-Eyring nanomaterial in presence of gyrotactic microorganisms. Flow is generated via stretching sheet and is subject to melting heat effect. Radiation and dissipation are addressed. Entropy rate is also reported. Nanofluid effects are explored through Buongiorno model for nanofluid by con...

The main theme behind this work is to model and analyze melting heat in the squeezed flow of a modified hybrid nanomaterial (Ag + MWCNTs + SWCNTs + Water). Entropy generation in the presence of viscous dissipation is investigated. Modeling is performed for basefluid (Water), nanofluid (SWCNTs + Water), hybrid nanofluid (MWCNTs + SWCNTs + Water), an...

This article communicates peristalsis of Jeffrey material in curved geometry. Here, material has temperature-dependent thermal conductivity and viscosity. Mathematical modeling of an inclined magnetic field in curved configuration has been presented in this article. Irreversibility effects have been analyzed through entropy generation. Slip conditi...

This paper studies some parameter estimation algorithms for a class of nonlinear models with exponential terms, i.e., the radial basis function-based state-dependent autoregressive (RBF-AR) models. An Aitken-based multi-innovation stochastic gradient algorithm is presented for the RBF-AR models based on the Aitken method. Inspired by the decomposit...