Jehanzeb Masud’s research while affiliated with Air University and other places

... Wing rock is highly dependent on the configuration and has been studied in many designs, such as chined forebody configurations [18,19], canard-configuration models [20], fighter aircraft with conical forebodies [14], double-delta wings [21], blended wing body configurations [22], and flying wings [12,23]. Various configurations and shapes exhibit different ranges of angle of attack, amplitude, and frequency of wing rock oscillation [22]. ...

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Bifurcation analysis of wing rock and routes to chaos of a low aspect ratio flying wing

... 1. , Ravi, et. al, 2022, Mehmood, et. al, 2022) 2 3 (Ravi, et. al, 2022) (Dyson, 2024 3 21 ) Li ) , Ravi, et. al, 2022) 300 mm (Jafari, et. al, 2016a, Akgöl and) (Mehmood, et. al, 2022) Cross section (2) 8bit ...

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Bladeless dust collection system to prevent scattering in cosmetics manufacturing process化粧品製造プロセスにおける粉体の飛散防止を目的としたブレードレス集塵システムの開発

... For aerodynamic design, computational fluid dynamics (CFD) analysis is commonly employed to evaluate high-speed compressible flow fields. These physics-rich flow fields are essential for determining aerodynamic performance 3 , conducting multi-disciplinary analysis and optimization 4,5 , estimating noise 6 , studying stall characteristics 7 , and integrating propulsion systems with the airframe 8,9 . In transonic and supersonic designs, flow fields are characterized by shock waves of varying strength and position, as well as interactions between shock waves and boundary layers. ...

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Nonlinear Reduced-Order Modeling of Compressible Flow Fields Using Deep Learning and Manifold Learning

... The bladeless design of the Dyson AirMultiplier has since garnered significant attention due to its unique approach to air circulation, which eliminates the need for conventional rotating blades. Some studies have examined the influence some parameters such as shape on the outlet flow field structure [4], discharge ratio [5][6][7][8] or even noise [9]. ...

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Parametric Study of a Bladeless Fan Geometry: Investigating the Influence of Geometry Parameters on Discharge Ratio and Thrust Force

... The study identified solidity [9], blade shape [10], helicity [11], airfoil profile, and the design of connecting rods [12] as the primary parameters influencing the energy conversion efficiency of vertical axis turbines. Dendy Satrio [13] improved the energy conversion efficiency of vertical axis turbines under low-flow velocity conditions by introducing flow bypass structures, whereas Furhan Khan [14] achieved similar enhancements using variable pitch methods. Although these solutions are effective, they increase the structural complexity of the turbine, thus undermining its inherent advantage of simplicity. ...

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Influence of Airfoil Curvature and Blade Angle on Vertical Axis Hydraulic Turbine Performance in Low Flow Conditions

... To design of traditional supersonic CD nozzle is based on the area ratio between exit of the nozzle and throat (minimum cross-section area along nozzle axis) as shown in Eq. 1 [6,[22][23][24]. ...

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A Concept of Aerospike Nozzle for Cold Spray Additive Manufacturing—Towards a Potential Solution for Preventing the Issue of Clogging

... Aerodynamics design is performed using PROPID [9][10][11], which is an inverse rotor design tool that produces a rotor geometry based on desired aerodynamic performance. The desired performance specifications are set by the designer based on power, tip speed ratio, average wind speed, rated wind speed, and axial induction along the blade span. ...

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Active rotor coning for a 25 MW downwind offshore wind turbine

... Aircraft spin, as a highly nonlinear and dangerous flight condition, is characterized by a supercritical angle of attack, a large sideslip angle, and a significant yaw rate. Recovering from aircraft spin to avoid ground collisions is a challenging task that has attracted considerable attention [1][2][3][4]. ...

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Fixed-Time Aircraft Spin Recovery Control Based on a Nonsingular Integral Terminal Sliding Mode Approach

... When the AOA changes, the aerodynamic coefficient of the aircraft will also change non-linearly, and will change unsteady again with the control surface deflection, inboard or outboard sideslip and other influencing factors. Aerodynamic coefficient is an important index to show the aerodynamic characteristics of aircraft [22]. Therefore, it is necessary to analyze the changes of aerodynamic force/moment coefficient at this stage before analyzing the longitudinal stability of aircraft during take-off and landing. ...

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Investigation of longitudinal stability analysis of general aviation aircraft by phase plane method

... Aircraft spin, as a highly nonlinear and dangerous flight condition, is characterized by a supercritical angle of attack, a large sideslip angle, and a significant yaw rate. Recovering from aircraft spin to avoid ground collisions is a challenging task that has attracted considerable attention [1][2][3][4]. ...

Reference:

Fixed-Time Aircraft Spin Recovery Control Based on a Nonsingular Integral Terminal Sliding Mode Approach