All Outputs (357)

Augmentation of heat transfer via nanofluids in duct flows using Fourier-type conditions : theoretical and numerical study (2021)
Journal Article
Umavathi, J., & Beg, O. (2021). Augmentation of heat transfer via nanofluids in duct flows using Fourier-type conditions : theoretical and numerical study. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 236(3), 926-941. https://doi.org/10.1177/09544089211052025

Motivated by developments in thermal duct processing, an investigation is presented to study the behavior of viscous nanoparticle suspensions flowing in a vertical duct subject to Fourier-type conditions. The left wall temperature is kept lower than... Read More about Augmentation of heat transfer via nanofluids in duct flows using Fourier-type conditions : theoretical and numerical study.

Spectral computation of reactive bi-directional hydromagnetic non-Newtonian convection flow from a stretching upper parabolic surface in non-Darcy porous medium (2021)
Journal Article
Shahid, A., Bhatti, M., Beg, O., Animasaun, I., & Javid, K. (2021). Spectral computation of reactive bi-directional hydromagnetic non-Newtonian convection flow from a stretching upper parabolic surface in non-Darcy porous medium. International Journal of Modern Physics B, 35(29), 2150294. https://doi.org/10.1142/S0217979221502945

The current article presents a mathematical model for bi-directional convection magnetohydrodynamic (MHD) tangent hyperbolic nanofluid flow from the upper horizontal subsurface of a stretching parabolic surface to a non-Darcian porous medium, as a... Read More about Spectral computation of reactive bi-directional hydromagnetic non-Newtonian convection flow from a stretching upper parabolic surface in non-Darcy porous medium.

Thermomagnetic reactive ethylene glycol-metallic nanofluid transport from a convectively heated porous surface with ohmic dissipation, heat source, thermophoresis and Brownian motion effects (2021)
Journal Article
Shamshuddin, M., Mabood, F., & Beg, O. (2021). Thermomagnetic reactive ethylene glycol-metallic nanofluid transport from a convectively heated porous surface with ohmic dissipation, heat source, thermophoresis and Brownian motion effects. International Journal of Modelling and Simulation, https://doi.org/10.1080/02286203.2021.1977531

The objective of this study is to develop a mathematical model for chemically reacting magnetic nanofluid flow with thermophoretic diffusion, Brownian motion and Ohmic magnetic heating in a Darcian permeable regime. The current flow model also cons... Read More about Thermomagnetic reactive ethylene glycol-metallic nanofluid transport from a convectively heated porous surface with ohmic dissipation, heat source, thermophoresis and Brownian motion effects.

Computational fluid dynamics simulation and visualization of Newtonian and non-Newtonian transport in a peristaltic micro-pump (2021)
Journal Article
El Gendy, M., Beg, O., Kadir, A., Islam, M., & Tripathi, D. (2021). Computational fluid dynamics simulation and visualization of Newtonian and non-Newtonian transport in a peristaltic micro-pump. Journal of Mechanics in Medicine and Biology, 21(8), 2150058. https://doi.org/10.1142/S0219519421500585

Motivated by recent developments in bio-inspired medical engineering microscale pumps, in the present article a 3-dimensional sequential simulation of a peristaltic micro-pump is described to provide deeper insight into the hydromechanics of lamina... Read More about Computational fluid dynamics simulation and visualization of Newtonian and non-Newtonian transport in a peristaltic micro-pump.

Multiple slip effects on nanofluid dissipative flow in a converging/diverging channel: A numerical study (2021)
Journal Article
Beg, O., Beg, T., Khan, W. A., & Uddin, M. J. (2022). Multiple slip effects on nanofluid dissipative flow in a converging/diverging channel: A numerical study. Heat Transfer, 51(1), 1040-1061. https://doi.org/10.1002/htj.22341

AbstractA mathematical model is developed for viscous slip flow and heat transfer in water/Ethylene glycol‐based nanofluids containing metallic oxide nanoparticles, through a converging/diverging channel. We adopt the single‐phase Tiwari–Das model. T... Read More about Multiple slip effects on nanofluid dissipative flow in a converging/diverging channel: A numerical study.

Numerical simulation of the transport of nanoparticles as drug carriers in hydromagnetic blood flow through a diseased artery with vessel wall permeability and rheological effects (2021)
Journal Article
Tripathi, J., Vasu, B., Beg, O., & Gorla, R. (2022). Numerical simulation of the transport of nanoparticles as drug carriers in hydromagnetic blood flow through a diseased artery with vessel wall permeability and rheological effects. Microvascular Research, 139, 104241. https://doi.org/10.1016/j.mvr.2021.104241

The present study considers the mathematical modelling of unsteady non-Newtonian hydro-magnetic nanohemodynamics through a rigid cylindrical artery featuring two different stenoses (composite and irregular). The Ostwald-De Waele power-law fluid mode... Read More about Numerical simulation of the transport of nanoparticles as drug carriers in hydromagnetic blood flow through a diseased artery with vessel wall permeability and rheological effects.

An executable method for an intelligent speech and call recognition system using a machine learning-based approach (2021)
Journal Article
Rajarajeswari, P., & Beg, O. (2021). An executable method for an intelligent speech and call recognition system using a machine learning-based approach. Journal of Mechanics in Medicine and Biology, 21(07), 2150055. https://doi.org/10.1142/S021951942150055X

This paper describes a novel call recognizer system based on the machine learning approach. Current trends, intelligence, emotional recognition and other factors are important challenges in the real world. The proposed system provides robustness wi... Read More about An executable method for an intelligent speech and call recognition system using a machine learning-based approach.

Ion slip and hall effects on generalized time-dependent hydromagnetic Couette flow of immiscible micropolar and dusty micropolar fluids with heat transfer and dissipation : a numerical study (2021)
Journal Article
Chandrawat, R., Joshi, V., & Beg, O. (2021). Ion slip and hall effects on generalized time-dependent hydromagnetic Couette flow of immiscible micropolar and dusty micropolar fluids with heat transfer and dissipation : a numerical study. Journal of Nanofluids, 10(3), 431-446. https://doi.org/10.1166/jon.2021.1792

The hydrodynamics of immiscible micropolar fluids are important in a variety of engineering problems, including biofluid dynamics of arterial blood flows, pharmacodynamics, Principle of Boundary layers, lubrication technology, short waves for heat-co... Read More about Ion slip and hall effects on generalized time-dependent hydromagnetic Couette flow of immiscible micropolar and dusty micropolar fluids with heat transfer and dissipation : a numerical study.

Numerical simulation of thermal management during natural convection in a porous triangular cavity containing air and hot obstacles (2021)
Journal Article
Chandanam, V., Venkata Lakshmi, C., Venkatadri, K., Beg, O., & Prasad, V. (2021). Numerical simulation of thermal management during natural convection in a porous triangular cavity containing air and hot obstacles. European Physical Journal Plus, 136(8), 885. https://doi.org/10.1140/epjp/s13360-021-01881-3

A numerical study is presented of laminar viscous magnetohydrodynamic natural convection flow in a triangular shaped porous enclosure filled with electrically conducting air and containing two hot obstacles. The mathematical model is formulated in... Read More about Numerical simulation of thermal management during natural convection in a porous triangular cavity containing air and hot obstacles.

Computation of unsteady generalized Couette flow and heat transfer in immiscible dusty and non‐dusty fluids with viscous heating and wall suction effects using a modified cubic B‐spine differential quadrature method (2021)
Journal Article
Chandrawat, R. K., Joshi, V., Beg, O., & Tripathi, D. (2022). Computation of unsteady generalized Couette flow and heat transfer in immiscible dusty and non‐dusty fluids with viscous heating and wall suction effects using a modified cubic B‐spine differential quadrature method. Heat Transfer, 51(1), 99-139. https://doi.org/10.1002/htj.22299

AbstractIn this paper, the unsteady flow of two immiscible fluids with heat transfer is studied numerically with a modified cubic B‐spine Differential Quadrature Method. Generalized Couette flow of two immiscible dusty (fluid–particle suspension) and... Read More about Computation of unsteady generalized Couette flow and heat transfer in immiscible dusty and non‐dusty fluids with viscous heating and wall suction effects using a modified cubic B‐spine differential quadrature method.

Unsteady squeezing flow of a magnetized nano-lubricant between parallel disks with Robin boundary conditions (2021)
Journal Article
Umavathi, J., Patil, S., Mahanthesh, B., & Beg, O. (2021). Unsteady squeezing flow of a magnetized nano-lubricant between parallel disks with Robin boundary conditions. Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanomaterials, Nanoengineering and Nanosystems, 235(3-4), 67-81. https://doi.org/10.1177/23977914211036562

The aim of the present work is to examine the impact of magnetized nanoparticles (NPs) in enhancement of heat transport in a tribological system subjected to convective type heating (Robin) boundary conditions. The regime examined comprises the squ... Read More about Unsteady squeezing flow of a magnetized nano-lubricant between parallel disks with Robin boundary conditions.

Spectral relaxation computation of electroconductive nanofluid convection flow from a moving surface with radiative flux and magnetic induction (2021)
Journal Article
Akter, S., Ferdows, M., Beg, T., Beg, O., Kadir, A., & Sun, S. (2021). Spectral relaxation computation of electroconductive nanofluid convection flow from a moving surface with radiative flux and magnetic induction. Journal of Computational Design and Engineering, 8(4), 1158-1171. https://doi.org/10.1093/jcde/qwab038

A theoretical model is developed for steady magnetohydrodynamic (MHD) viscous flow resulting from a moving semi-infinite flat plate in an electrically conducting nanofluid. Thermal radiation and magnetic induction effects are included in addition t... Read More about Spectral relaxation computation of electroconductive nanofluid convection flow from a moving surface with radiative flux and magnetic induction.

Finite element computation of magneto-hemodynamic flow and heat transfer in a bifurcated artery with saccular aneurysm using the Carreau-Yasuda biorheological model (2021)
Journal Article
Dubey, A., Vasu, B., Beg, O., & Gorla, R. (2021). Finite element computation of magneto-hemodynamic flow and heat transfer in a bifurcated artery with saccular aneurysm using the Carreau-Yasuda biorheological model. Microvascular Research, 138, 104221. https://doi.org/10.1016/j.mvr.2021.104221

Existing computational fluid dynamics studies of blood flows have demonstrated that the lower wall stress and higher oscillatory shear index might be the cause of acceleration in atherogenesis of vascular walls in hemodynamics. To prevent the chanc... Read More about Finite element computation of magneto-hemodynamic flow and heat transfer in a bifurcated artery with saccular aneurysm using the Carreau-Yasuda biorheological model.

Asymptotic study of unsteady mass transfer through a rigid artery with multiple irregular stenoses (2021)
Journal Article
Roy, A., & Beg, O. (2021). Asymptotic study of unsteady mass transfer through a rigid artery with multiple irregular stenoses. Applied Mathematics and Computation, 410, 126485. https://doi.org/10.1016/j.amc.2021.126485

The present article examines the transport of species in streaming blood through a rigid artery in the presence of multi-irregular stenosis. The carrier fluid i.e., blood is assumed to be non-Newtonian fluid (Casson’s viscoplastic model is used) an... Read More about Asymptotic study of unsteady mass transfer through a rigid artery with multiple irregular stenoses.

Unsteady hybrid nanoparticle-mediated magneto-hemodynamics and heat transfer through an overlapped stenotic artery : biomedical drug delivery simulation (2021)
Journal Article
Tripathi, J., Vasu, B., Beg, O., & Gorla, R. (2021). Unsteady hybrid nanoparticle-mediated magneto-hemodynamics and heat transfer through an overlapped stenotic artery : biomedical drug delivery simulation. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 235(10), 1175-1196. https://doi.org/10.1177/09544119211026095

Two-dimensional laminar hemodynamics through a diseased artery featuring an overlapped stenosis was simulated theoretically and computationally. This study presented a mathematical model for the unsteady blood flow with hybrid biocompatible nanopar... Read More about Unsteady hybrid nanoparticle-mediated magneto-hemodynamics and heat transfer through an overlapped stenotic artery : biomedical drug delivery simulation.

Spectral numerical study of entropy generation in magneto-convective viscoelastic biofluid flow through poro-elastic media with thermal radiation and buoyancy effects (2021)
Journal Article
Mallikarjuna, B., Krishna, G., Srinivas, J., Beg, O., & Kadir, A. (2022). Spectral numerical study of entropy generation in magneto-convective viscoelastic biofluid flow through poro-elastic media with thermal radiation and buoyancy effects. Journal of Thermal Science and Engineering Applications, 14(1), 011008. https://doi.org/10.1115/1.4050935

Electromagnetic high-temperature therapy is popular in medical engineering treatments for various diseases include tissue damage ablation repair, hyperthermia and oncological illness diagnosis. The simulation of transport phenomena in such applicatio... Read More about Spectral numerical study of entropy generation in magneto-convective viscoelastic biofluid flow through poro-elastic media with thermal radiation and buoyancy effects.

Simulation of the onset of convection in a porous medium layer saturated by a couple-stress nanofluid (2021)
Journal Article
Umavathi, J., & Beg, O. (2021). Simulation of the onset of convection in a porous medium layer saturated by a couple-stress nanofluid. Microfluidics and Nanofluidics, 25(6), 53. https://doi.org/10.1007/s10404-021-02448-5

Linear and nonlinear stability analyses for the onset of time-dependent convection in a horizontal layer of a porous medium saturated by a couple-stress non-Newtonian nanofluid, intercalated between two thermally insulated plates, are presented. Br... Read More about Simulation of the onset of convection in a porous medium layer saturated by a couple-stress nanofluid.

Nonlinear nanofluid fluid flow under the consequences of Lorentz forces and Arrhenius kinetics through a permeable surface : a robust spectral approach (2021)
Journal Article
Zhang, L., Bhatti, M., Shahid, A., Ellahi, R., Beg, O., & Sait, S. (2021). Nonlinear nanofluid fluid flow under the consequences of Lorentz forces and Arrhenius kinetics through a permeable surface : a robust spectral approach. Journal of the Taiwan Institute of Chemical Engineers, 124, 98-105. https://doi.org/10.1016/j.jtice.2021.04.065

Background: Emerging applications in nanomaterials processing are increasingly featuring multiple physical phenomena including magnetic body forces, chemical reactions and high temperature behavior. Stimulated by developing a deeper insight of nano... Read More about Nonlinear nanofluid fluid flow under the consequences of Lorentz forces and Arrhenius kinetics through a permeable surface : a robust spectral approach.

Numerical study of nano-biofilm stagnation flow from a nonlinear stretching/shrinking surface with variable nanofluid and bioconvection transport properties (2021)
Journal Article
Alsenafi, A., Beg, O., Ferdows, M., Beg, T., & Kadir, A. (2021). Numerical study of nano-biofilm stagnation flow from a nonlinear stretching/shrinking surface with variable nanofluid and bioconvection transport properties. Scientific reports, 11(1), 9877. https://doi.org/10.1038/s41598-021-88935-9

A mathematical model is developed for stagnation point flow toward a stretching or shrinking sheet of liquid nano-biofilm containing spherical nano-particles and bioconvecting gyrotactic micro-organisms. Variable transport properties of the liquid (v... Read More about Numerical study of nano-biofilm stagnation flow from a nonlinear stretching/shrinking surface with variable nanofluid and bioconvection transport properties.

Parametric analysis and minimization of entropy generation in bioinspired magnetized non-Newtonian nanofluid pumping using artificial neural networks and particle swarm optimization (2021)
Journal Article
Abbas, M., Beg, O., Zeeshan, A., Hobiny, A., & Bhatti, M. (2021). Parametric analysis and minimization of entropy generation in bioinspired magnetized non-Newtonian nanofluid pumping using artificial neural networks and particle swarm optimization. Thermal Science and Engineering Progress, 24, 100930. https://doi.org/10.1016/j.tsep.2021.100930

Magnetohydrodynamic rheological bio-inspired pumping systems are finding new applications in modern energy systems. These systems combined the electrically conducting properties of flowing liquids with rheological behaviour, biological geometries a... Read More about Parametric analysis and minimization of entropy generation in bioinspired magnetized non-Newtonian nanofluid pumping using artificial neural networks and particle swarm optimization.