N.B. Naduvinamani

Gulbarga University · Department of Mathematics

In tribology, the Rayleigh step bearing has the maximum load capacity of any feasible bearing geometry. Traditional tribology resources have demonstrated that the Rayleigh step has an ideal geometry which maximizes load capacity. Both in nature and technology, rough and textured surfaces are essential for lubrication. While surface roughness enhanc...

We have considered the peristaltic mechanism of incompressible viscous hyperbolic tangent fluid with the impact of uniform magnetic field. The tapered asymmetric channel is assumed to be designed due to a peristaltic wave train on the non uniform walls taking different amplitudes and phase. This model anticipates the shear thinning phenomenon very...

The present physical problem has a significant number of applications in intra-uterine fluid motion with tiny particles in a nonpregnant uterus, and this situation of fluid motion is very important in examining the embryo motion in a uterus. Due to these real-life applications, in the current investigation, a perturbation-oriented numerical investi...

In this paper, an investigation has been made to study the dynamic characteristics of porous inclined slider bearing with rough surface lubricated with micropolar fluid lubricant. On the basis of Eringen’s micro-continuum theory, the Reynolds type equation of porous slider bearing is derived by considering rough surface and squeezing action to eval...

The aim of the present numerical investigation is to explore the impact of magnetic field on peristaltic flow of an incompressible tangent‐hyperbolic fluid in an asymmetric channel. The present physical model is developed based on the considered flow configuration and with the help of small Reynolds number approximations. The present flow problem i...

A two-dimensional mathematical model of magnetized unsteady incompressible Williamson fluid flow over a sensor surface with variable thermal conductivity and exterior squeezing with viscous dissipation effect is investigated, numerically. Present flow model is developed based on the considered flow geometry. Effect of Lorentz forces on flow behavio...

Present research article reports the magnetized impacts of Cattaneo-Christov double diffusion models on heat and mass transfer behaviour of viscous incompressible, time-dependent, two-dimensional Casson nanofluid flow through the channel with Joule heating and viscous dissipation effects numerically. The classical transport models such as Fourier a...

Present research article investigate the heat and mass transfer characteristics of unsteady magnetohydrodynamic Casson nanofluid flow between two parallel plates under the influence of viscous dissipation and first order homogeneous chemical reaction effects. The impacts of thermophoresis and Brownian motion are accounted in the nanofluid model to...

This paper concern with the electro-osmotically modulated peristaltic of Jeffrey fluid with zeta potential and Navier-slip boundary condition at the channel wall. The Poisson-Boltzmann equation for electrical potential distribution is assumed to accommodate the electrical double layer. Poisson-Boltzmann equations are simplified by using Debye-Hucke...

Present numerical study examines the heat and mass transfer characteristics of unsteady magneto-hydrodynamic squeezing flow of Casson fluid between two parallel plates with viscous and Joule dissipation effects in the presence of chemical reaction. The influence of Soret and Dufour parameters on squeezing flow is investigated along with thermal rad...

The present numerical investigation describes the influence of a transverse magnetic field on the heat and mass transfer characteristics of time‐dependent squeezed flow of Prandtl‐Eyring fluid past a horizontal sensor surface. The current physical problem is modeled based on the considered flow configuration. Also, the present problem is analyzed u...

The characteristics of Cattaneo-Christov heat and mass fluxes in an unsteady two-dimensional squeezing flow of a magneto-hydrodynamic (MHD) Casson fluid between two parallel plates with thermal radiation and Joule dissipation effects under the influence of time-dependent homogenous first-order chemical reaction is examined numerically. Present phys...

Present numerical study examines the heat and mass transfer characteristics of magneto-hydrodynamic Casson fluid flow between two parallel plates under the influence of thermal radiation, internal heat generation or absorption and Joule dissipation effects with homogeneous first order chemical reaction. The non-Newtonian behaviour of Casson fluid i...

Present work reports the magneto-hydrodynamic squeezing flow of Casson fluid between two parallel plates subjected to viscous and Joule dissipation effects with homogeneous first order chemical reaction. To differentiate the non-Newtonian squeezing flow behavior of the Casson fluid with Newtonian fluids a well-established rheological Casson fluid f...

This paper presents a theoretical study of MHD squeeze film lubrication between porous parallel plates with micropolar fluid. A generalized form of Reynolds’s equation is derived on the basis of Erigen’s micropolar fluid in the presence of applied magnetic force. The flow of an incompressible micro-polar fluid through porous medium bounded by recta...

This paper presents an analytical study on the effect of couple stress on static and dynamic characteristics of wide tapered land slider bearing in the presence of applied magnetic field. A non-dimensional modified Reynolds equation is derived for the bearing under consideration. Closed-form expressions for the steady fluid film pressure, steady lo...

Purpose The purpose of this study is to examine the magneto-hydrodynamic (MHD) effect on porous exponential slider bearings lubricated with couple stress fluid and to derive the modified Reynolds’s equation for non-Newtonian fluid under various operating conditions to obtain the optimum bearing parameters. Design/methodology/approach Based upon...

In this paper, the problem of the combined effect of magnetohydrodynamic (MHD) couple stress on the static and dynamic characteristics of porous plane inclined slider bearings with squeeze action is analyzed theoretically. The modified Reynolds equation governing fluid film pressure is derived for the problem under consideration. The modified Darcy...

The effect of surface roughness on static and dynamic characteristics of inclined plane slider bearing lubricated with couple stress fluid in the presence of magnetic field is theoretically analysed. The modified stochastic MHD couple stress Reynolds type equation is derived on the basis of Christensen stochastic theory by considering two types of...

In this paper, a theoretical study of the effect of surface roughness on the static characteristics of inclined plane slider-bearing lubricated with Rabinowitsch fluid is analysed. Christensen’s stochastic theory for the lubrication of rough surfaces has been used for the derivation of generalised stochastic Reynolds-type equation. The two types of...

Purpose Nowadays, the use of Newtonian fluid as a lubricant is diminishing day by day and the use of non-Newtonian fluids has gained importance. This paper presents an analysis of the static characteristics of Rayleigh step slider bearing lubricated with non-Newtonian Rabinowitsch fluid, which has not been studied so for. The purpose of this paper...

The effect of surface roughness on static and dynamic characteristics of parabolic slider bearing lubricated with couple stress fluid in the presence of magnetic field is theoretically analysed in this paper. The modified stochastic MHD couple stress Reynolds-type equation is derived on the basis of Christensen stochastic theory and considered two...

The effect of couple stresses on static and dynamic characteristics of exponential slider bearing in the presence of magnetic field considering squeeze action is theoretically analyzed in this paper. The modified magnetohydrodynamic couple stress Reynolds type equation is derived on the basis of Stokes couple stress model and closed form expression...

In this paper, the analysis of squeeze film characteristics of conical bearings with combined effects of piezo-viscous dependency and couple stress fluid is presented. On the basis of the Stokes microcontinuum theory of couple stress fluid model and Barus experimental research, a modified Reynolds equation is derived, the standard perturbation tech...

In this paper the effect of surface roughness on squeeze film lubrication between circular stepped plates is analysed. The modified non-linear averaged Reynolds type equation is derived on the basis of Christensen’s stochastic theory for rough surfaces for Rabinowitsch fluid model. Accordingly two types of one-dimensional surface roughness patterns...

In this paper the couple stress effects on the static and dynamic characteristics of parabolic and plane inclined slider bearings in the presence of applied magnetic field with squeeze action is analysed theoretically. The modified MHD couple stress Reynolds equation is derived. The closed form solution for the film pressure of parabolic and inclin...

A comparative study of performance characteristics of infinitely wide exponential, parabolic and plane inclined slider bearings lubricated with a non-Newtonian couple stress fluid in the presence of a transverse magnetic field is presented in this paper. On the basis of Stokes couple stress fluid model, the modified Reynolds equation is derived. Th...

In this paper, the effect of pressure dependent viscosity on the squeeze film characteristics between convex curved plates of a cosine form is presented. Micropolar fluid theory, which is a possible non-Newtonian model of a suspension of rigid particle additives, is applied to the study of the lubrication of cosine form convex curved plates. The mo...

Theoretical analysis of the effect of piezoviscous dependency and couple stress on squeeze film lubrication between parallel stepped plates is presented in this article. According to the Stokes microcontinuum theory of couple stress fluids, the modified Reynolds equation is derived by considering viscosity variation along the film thickness. The st...

We make an effort to analyze the behavior of squeeze film characteristics of different finite plates with couple stress fluid in the presence of a transverse magnetic field. On the basis of the Stokes couple stress fluid model and hydromagnetic flow model, a modified Reynold's equation is derived, which is solved by using appropriate boundary condi...

In this paper, a theoretical study of the effect of pressure dependent viscosity on couple stress squeeze film lubrication between rough parallel plates is analyzed on the basis of Barus experimental results. Stokes micro continuum theory of couple stress fluids and Christensen’s stochastic theory for the lubrication of rough surfaces have been use...

In this paper, a theoretical study of the combined effects of surface roughness and the variation of viscosity with pressure on the squeeze film lubrication between sphere and a flat plate is presented. Based on the Christensen’s stochastic theory for the hydrodynamic lubrication of rough surfaces, two types of one-dimensional surface roughness (ra...

The theoretical analysis of the combined effects of surface roughness and viscosity variation on the couple stress squeeze film characteristics of short journal bearings is presented. The modified stochastic Reynold’s equation accounting for the viscosity variation of couple stresses fluid and randomized surface roughness structure on bearing surfa...

The combined effect of surface roughness and magnetic field on the performance characteristic of the circular plates lubricated with conducting couplestress fluid (CCSF) has been studied. On the basis of the Christensen Stochastic model, the generalized stochastic Reynold’s equation is derived. Modified equations for the nondimensional pressure, lo...

In this paper, a theoretical study of the combined effects of viscosity variation and surface roughness on the squeeze film performance of journal bearings lubricated with micropolar fluid is made. The modified averaged Reynolds equation for micropolar fluids accounting for the randomized surface roughness structure and variation of viscosity is ma...

Theoretical study of non-Newtonian effects of second-order fluids on the performance characteristics of inclined slider bearings is presented. An approximate method is used for the solution of the highly nonlinear momentum equations for the second-order fluids. The closed form expressions for the fluid film pressure, load carrying capacity, frictio...

Combined effects of surface roughness and viscosity-pressure dependency on the couple stress squeeze film characteristics of parallel circular plates are presented. On the basis of Christensen’s stochastic theory, two types of one-dimensional roughness structures, namely, the radial roughness and azimuthal roughness patterns, are considered and the...

In this paper, a theoretical analysis on the squeeze film characteristics between circular stepped plates lubricated with Rabinowitsch fluid is presented. By using Rabinowitsch fluid model, the modified Reynolds type equation is derived to study the dilatant and pseudoplastic nature of the fluid in comparison with Newtonian fluid. The closed form s...

A simplified mathematical model has been developed for understanding the combined effects of surface roughness and couple stresses on the squeeze film behavior of poroelastic bearings in general and that of hip joints in particular. The cartilage is modeled as biphasic poroelastic matrix and synovial fluid is modeled as couple stress fluid. The mod...

Purpose – The purpose of this article is to analyse the effects of surface roughness on the magneto-hydrodynamic (MHD) squeeze-film characteristics between a sphere and a porous plane surface, which have not been studied so far. Design/methodology/approach – The analytical model takes into account the effect of porosity by assuming that the flow i...

In the present paper the effect of micropolar squeeze film lubrication between a cylinder and a poroelastic flat plate is presented. The synovial fluid is modeled as the micropolar fluid and the articular cartilage is considered to be a poroelastic in nature. The modified averaged Reynolds equation accounting for the randomized surface roughness st...

In the present investigation, a semi analytic and semi Numerical solution of the hydromagnetic squeeze film between anisotropic porous rectangular plates with lubricant additives has been studied. The effect of transverse magnetic field with the lubricants containing additives has been modelled as Stokes couple stress fluid. The more realistic Beav...

In this paper, the general Reynolds equation of finite porous journal bearing lubricated with couplestress fluid is solved numerically for the assessment of dynamic characteristics of the bearings. The Reynolds type equation governing the steady performance is obtained and solved numerically by finite difference technique. From the numerical result...

In this paper, theoretical analysis of combined effects of micropolarity and surface roughness on the performance characteristics of hydrodynamic lubrication of slider bearings with various film shapes such as plane slider bearing, exponential slider bearing, secant-shaped slider bearing and hyperbolic slider bearing is presented. A stochastic rand...

The theoretical analysis of rheological effects of Rabinowitsch fluid on the steady and dynamic characteristics of inclined stepped composite bearings is investigated. The Rabinowitsch fluid model is considered to account the pseudoplastic and dilatant nature of the lubricant due to the presence of additives. The perturbation technique is used to d...

This paper presents the theoretical study of porous inclined stepped composite bearings with couple stress fluids. The generalized Reynolds type equation is derived for porous inclined stepped composite bearings with couple stress fluids. The closed form expressions are obtained for the fluid film pressure, load carrying capacity, frictional force...

This paper deals with linear and nonlinear stability analyses of thermal convection in a dielectric fluid saturated anisotropic Brinkman porous layer subject to the combined effect of AC electric field and time-periodic gravity modulation (GM). In the realm of linear theory, the critical stability parameters are computed by regular perturbation met...

The combined effects of surface roughness and viscosity variation due to additives on long journal bearing are analytically studied. The variation in viscosity along the film thickness is considered. The presence of solid particles in the lubricant is an increased effective viscosity, which increases the load carrying capacity and decreases the fri...

A theoretical study of the effect of the viscosity variation on the squeeze film performance of a short journal bearing operating with micropolar fluid is presented. The modified Reynolds equation accounting for the viscosity variation in micropolar fluid is mathematically derived. To obtain a closed form solution, the short bearing approximation u...

The effects of surface roughness and poroelasticity on the micropolar squeeze film behavior between rectangular plates in general and that of synovial joints in particular are presented in this paper. The modified Reynolds equation, which incorporates the randomized surface roughness structure as well as elastic nature of articular cartilage with m...

In this paper, a theoretical study on the effects of MHD and surface roughness on the couple stresses squeeze film lubrication between circular stepped plates is presented. The modified averaged Reynolds equation is derived on the basis of Christensen's stochastic theory for rough surfaces. The closed form expressions are obtained for the mean sque...

The effect of anisotropic permeability on micropolar squeeze film lubrication between poroelastic rectangular plates is studied. The non-Newtonian synovial fluid is modelled by Eringen’s micropolar fluid, and the poroelastic nature of cartilage is taken in to account. The stochastic modified Reynolds equation, which incorporates the elastic as well...

The theoretical investigation made in this paper is to study the effect of transverse magnetic field on the performance characteristics of porous squeeze film lubrication between two rectangular plates with couplestress fluids. A most general modified Reynolds equation is derived using Stokes constitutive equations for couplestress fluids. The flui...

The onset of Darcy–Brinkman double-diffusive convection in a binary viscoelastic fluid-saturated porous layer is studied using both linear and weakly nonlinear stability analyses. The Oldroyd-B model is employed to describe the rheological behavior of the fluid. An extended form of Darcy–Oldroyd law incorporating the Brinkman’s correction and time...

In this paper, a theoretical analysis of the problem of magneto-hydrodynamic couple-stress squeeze film lubrication between rough circular stepped plates is presented. The modified averaged Reynolds equation is derived for the two types of one-dimensional roughness structures, namely the radial roughness pattern and the azimuthal roughness pattern....

In this paper, the effect of non-Newtonian couple stress fluids on the magnetohydrodynamic (MHD) squeeze film characteristics between a sphere and a plane surface is analysed. By taking into account the couple stresses due to the presence of microstructure additives in the lubricant and the magnetic effects due to the magnetisation of the couple st...

The effect of surface roughness on the magnetohydrodynamic squeeze film behavior between two rectangular plates is analyzed. A generalized form of surface roughness pattern is considered. A stochastic random variable with non-zero mean, variance and skewness is used to model mathematically the surface roughness of the squeeze film bearings. The mod...

In this paper, the effect of micropolar fluid on the static and dynamic characteristics of squeeze film lubrication in finite porous journal bearings is studied. The finite modified Reynolds equation is solved numerically using the finite difference technique and the squeeze film characteristics are obtained. According to the results obtained, the...

The theoretical analysis of the effect of transverse magnetic field on the couplestress squeeze film lubrication between circular stepped plates is presented. The modified Reynolds equation is derived. The closed-form expressions are obtained for the squeeze film pressure, load-carrying capacity, and squeeze film time. The squeeze film characterist...

The theoretical investigations made in this paper are to study the combined effects of unidirectional surface roughness and magnetic effect on the performance characteristics of a porous squeeze film lubrication between two rectangular plates. The stochastic Reynolds equation accounting for the magnetic effect and randomized surface roughness struc...

The purpose of this paper is to study the effect of surface roughness on the performance of curved pivoted porous slider bearings lubricated with couple stress fluid. The modified B–J slip boundary condition is utilised at the porous/fluid film interface to derive the Reynolds type equation for the problem under consideration. To mathematically mod...

In this article, a theoretical study of the effect of surface roughness on the squeeze film characteristics of short porous partial journal bearing lubricated with micropolar fluids is made. The modified averaged Reynolds equation accounting for the randomized surface roughness structure is mathematically derived. The Christensen stochastic theory...

On the basis of Eringen's micropolar fluid theory, a theoretical analysis of hydrodynamic squeeze film behaviour for short partial porous journal bearings lubricated by micropolar fluids is presented in this article. To take into account the micropolar effects because of the lubricant containing additives or suspended particles in a short partial p...

In this paper, the rheological effect of couple stress fluids on the static and dynamic characteristics of squeeze film lubrication in finite porous journal bearings is studied. The finite modified Reynolds equation is derived from the Stokes constitutive equations for couple stress fluids and is solved numerically by using the finite difference te...

In this paper, the general dynamic Reynolds equation of sliding-squeezing surfaces of exponential shaped slider bearings with micropolar fluid is solved numerically for the assessment of dynamic characteristics. The two Reynolds type equations governing the steady performance and the perturbed characteristics are obtained using the perturbation tec...

In this paper, a theoretical analysis of the effects of couple stresses on the squeeze film lubrication between circular stepped plates is presented. Modified Reynolds type equation is derived for the couplestress fluids. Closed form solution is obtained. According to the results obtained, the influence of couple stresses enhances the squeeze film...

In this paper an attempt has been made to study the rheological effects of micropolar fluid lubricants on the steady state and dynamic behavior of porous slider bearings by considering the squeezing action. The general modified Reynolds-type equation of porous sliding-squeezing surfaces with micropolar fluids is derived for the assessment of dynami...

The theoretical study of the effect of surface roughness on the squeeze film lubrication of short journal bearings with no journal rotation under fluctuating loads with micropolar fluids is made. A more general form of surface roughness is mathematically modelled by a stochastic random variable with non-zero mean, variance, and skewness. The genera...

This paper describes a theoretical analysis of the effect of surface roughness on the hydrodynamic lubrication of one-dimensional porous inclined slider bearings with micropolar fluids. To account for more realistic situations of the non-uniform rubbing of the bearing surfaces, it is assumed that, the probability density function for the random var...

The general dynamic Reynolds equation of sliding-squeezing surfaces with micro-polar fluids is derived for the assessment of dynamic characteristics of bearings with general film thickness. The detailed analysis is presented for the plane inclined slider bearings by using perturbation method. Two Reynolds-type equations corresponding to steady perf...

This paper presents the theoretical study of the effect of couple stresses on the optimum lubrication characteristics of porous Rayleigh step bearings. The lubricant with additives in the film region and also in the porous region is modelled as the Stokes couple-stress fluid. Modified Darcy type equations accounting for the polar effects in the por...

Purpose This paper aims to study the effects of surface roughness on the characteristics of squeeze film lubrication between curved annular plates. Design/methodology/approach The modified Reynolds type equation governing the fluid film pressure is derived. The stochastic method for rough surfaces developed by Christensen is to derive stochastic t...

In this paper, combined effects of surface roughness and couple stresses on squeeze film lubrication between porous circular stepped plates is analysed. In the context of Christensen stochastic theory for the study of surface roughness two types of one-dimensional surface roughness pattern, viz., azimuthal roughness pattern and radial roughness pat...

This paper presents the theoretical study of the effect of surface roughness on the hydrodynamic lubrication of porous step-slider bearings. A more general form of surface roughness is mathematically modeled by a stochastic random variable with non-zero mean, variance and skewness. The generalized average Reynolds-type equation is derived for the r...

In this paper the effect of surface roughness on the performance of curved pivoted slider bearings is studied. A more general type of surface roughness is mathematically modelled by a stochastic random variable with nonzero mean, variance and skewness. The averaged modified Reynolds type equation is derived on the basis of Stokes microcontinuum the...

Purpose – The aim of this paper is to investigate the effect of surface roughness on the squeeze film characteristics of long porous partial journal bearings with couple stress fluids as lubricant. Design/methodology/approach – The Stokes couple stress fluid model is included to account for the additives effects of lubricant. The Christensen's sto...

In this paper, a theoretical study of the effect of surface roughness on the hydrodynamic lubrication of couple-stress squeeze film between a sphere and a flat plate is presented on the basis of Christensen's stochastic theory for hydrodynamic lubrication of rough surfaces. The modified Reynolds equation accounting for the couple stresses and the s...

Purpose To study the combined effects of permeability and couplestresses on the performance characteristics of a secant‐shaped porous slider bearing lubricated with Stokes couplestress fluid. Design/methodology/approach The modified Reynolds type equation governing the fluid film pressure is derived on the basis of Stokes microcontinuum theory of...

Purpose This paper aims to advance the squeeze film characteristics of long partial journal bearings with couple stress fluid studied by Lin to include the effect of permeability on the squeeze film lubrication of long partial porous journal bearings with couple stress fluids. Design/methodology/approach A semi‐analytical and semi‐numerical soluti...

This paper describes a theoretical analysis of the combined effects of unidirectional surface roughness and the lubricant additives on the performance characteristics of a porous squeeze film lubrication between two rectangular plates of finite dimensions. The lubricant with microstructure additives is modeled as a Stokes couplestress fluid. The st...

The stochastic theory of hydrodynamic lubrication of rough surfaces is used to study the effect of surface roughness on the performance of the squeeze film between circular curved plate and a flat plate. In the context of stochastic theory, two types of one-dimensional roughness patterns (circumferential and radial roughness) are considered. The st...

The combined effects of couple stresses and surface roughness on the performance characteristics of hydrodynamic lubrication of slider bearings with various film shapes, such as plane slider, exponential, secant and hyperbolic, are studied. A stochastic random variable with non-zero mean, variance and skewness is used to mathematically model the su...

In the present paper, the squeeze film lubrication between anisotropic porous rectangular plates with lubricants containing polar additives has been studied. The lubricants containing additives has been modelled as a Stokes couple stress fluid. The more realistic Beavers-Joseph slip boundary conditions are used to derive the most general form of Re...

The effect of surface roughness on the couplestress squeeze film behavior between two rectangular plates, when one plate has a porous facing with anisotropic permeability, is analyzed by taking into account the slip velocity at the fluid and porous material interface. The stochastic Reynolds equation accounting for the couple stresses and randomize...

In this paper, the squeeze-film lubrication theory between two isotropic porous rectangular plates has been advanced to analyse the effects of couple stresses arising due to the presence of microstructure additives in the lubricant, using the Stokes theory of couple-stress fluids. The most general form of the modified Reynolds equation is derived f...

In this paper, a theoretical study of the effect of surface roughness in hydrodynamic lubrication of a porous journal bearing with couplestress fluid as lubricant is made. The modified Reynolds equations accounting for the couple stresses and randomized surface roughness structure are mathematically derived. The Christensen stochastic theory of hyd...

This paper describes a theoretical investigation of the rheological effects of couple stress fluids on the performance of narrow porous journal bearings. A most general modified Reynolds equation is derived for narrow porous journal bearings using the Stokes constitutive equations for couple stress fluids. The fluid in the film region and in the po...

In this paper, the study of static rotor bearing systems lubricated with couple stress fluids has been advanced to analyze the effect of surface roughness considerations using stochastic approach. The problem is formulated mathematically and solved with appropriate boundary conditions for transverse roughness and for longitudinal roughness. It is o...

This paper presents the theoretical investigations of the rheological effects of the couple stress fluids on the static and dynamic behaviour of the pure squeeze films in the porous journal bearings. The present study predicts the effects of percolation of the polar additives (microstructures) into the porous matrix on the performance of squeeze fi...

In this paper an attempt has been made to study the rheological effects of coupled stress fluids on the static and dynamic behaviour of squeeze-film lubrication in porous journal bearings. A generalized modified form of the Reynolds equation is derived for the squeeze-film lubrication of porous journal bearings with a coupled stress fluid as the lu...

In this paper, theoretical study of squeeze film lubrication between porous rectangular plates has been advanced by considering the simultaneous effects of anisotropic nature of the permeability and surface roughness of the plates. The effects of anisotropic permeability and roughness parameter on the performance characteristics of squeeze film are...

Theoretical study of double-layered porous Rayleigh-step bearings with second-order fluid as lubricant is presented. An approximate method for the solutions of the governing fluid film equations for a porous region is proposed. The expressions for the pressure distribution, load capacity and frictional coefficient are obtained in compact form. Calc...