All Outputs (419)

Taylor dispersion in non-Darcy porous media with bulk chemical reaction : a model for drug transport in impeded blood vessels (2021)
Journal Article
Roy, A., Beg, O., Saha, A., & Ramana Murthy, J. (2021). Taylor dispersion in non-Darcy porous media with bulk chemical reaction : a model for drug transport in impeded blood vessels. Journal of Engineering Mathematics, 127(1), 24. https://doi.org/10.1007/s10665-021-10120-8

The present article discusses the solute transport process in unsteady laminar blood flow through a non-Darcy porous medium, as a model for drug movement in blood vessels containing deposits. The Darcy-Brinkman-Forchheimer drag force formulation is... Read More about Taylor dispersion in non-Darcy porous media with bulk chemical reaction : a model for drug transport in impeded blood vessels.

Thermal analysis of airway mucus clearance by ciliary activity in the presence of inertial forces (2021)
Journal Article
Shaheen, S., Maqbool, K., Beg, O., & Gul, F. (2021). Thermal analysis of airway mucus clearance by ciliary activity in the presence of inertial forces. SN Applied Sciences, 3(4), 461. https://doi.org/10.1007/s42452-021-04439-1

In this study heat transfer effects on cilia induced mucus flow in human airways is presented. The elliptic wave pattern of cilia tips produces metachronal wave which enables the transportation of highly viscous mucus with nonzero inertial forces. Up... Read More about Thermal analysis of airway mucus clearance by ciliary activity in the presence of inertial forces.

Multi-objective optimal design of an Organic Rankine Cycle (ORC) plate heat exchanger with phase change (2021)
Journal Article
Norouzi, M., Targhi, R., Hashemian, S., Vaziri, S., & Beg, O. (2021). Multi-objective optimal design of an Organic Rankine Cycle (ORC) plate heat exchanger with phase change. AUT journal of mechanical engineering (Online), 5(4), 8. https://doi.org/10.22060/AJME.2021.19168.5935

Organic Rankine Cycles (ORCs) have been shown to be feasible thermodynamically for electricity generation from organic fluids as working fluids with low temperature sources. Heat exchanger performance is strongly influenced by thermodynamic cycle eff... Read More about Multi-objective optimal design of an Organic Rankine Cycle (ORC) plate heat exchanger with phase change.

Computation of ferromagnetic/nonmagnetic nanofluid flow over a stretching cylinder with induction and curvature effects (2021)
Journal Article
Mizan, M., Ferdows, M., Shamshuddin, M., Beg, O., Salawu, S. O., & Kadir, A. (2021). Computation of ferromagnetic/nonmagnetic nanofluid flow over a stretching cylinder with induction and curvature effects. Heat Transfer, 50(6), 5240-5266. https://doi.org/10.1002/htj.22122

AbstractMotivated by enrobing processes in manufacturing technology with intelligent coatings, this study analyses the flow of an electroconductive incompressible nanofluid with heat distribution in a boundary layer containing metallic nanoparticles... Read More about Computation of ferromagnetic/nonmagnetic nanofluid flow over a stretching cylinder with induction and curvature effects.

Electro-osmotic propulsion of Jeffrey fluid in a ciliated channel under the effect of nonlinear radiation and heat source/sink (2021)
Journal Article
Shaheen, S., Beg, O., Gul, F., & Maqbool, K. (2021). Electro-osmotic propulsion of Jeffrey fluid in a ciliated channel under the effect of nonlinear radiation and heat source/sink. Journal of Biomechanical Engineering, 143(5), 051008. https://doi.org/10.1115/1.4049810

Mathematical modelling of mechanical system in microfluidics is an emerging area of interest in micro scale engineering. Since microfluidic devices use the hair like structure of artificial cilia for pumping, mixing and sensing in different fields, t... Read More about Electro-osmotic propulsion of Jeffrey fluid in a ciliated channel under the effect of nonlinear radiation and heat source/sink.

Blood Flow Mediated Hybrid Nanoparticles in Human Arterial System: Recent Research, Development and Applications (2021)
Journal Article
Tripathi, J., Vasu, B., Gorla, R., Chamkha, A. J., Murthy, P. V. S. N., & Beg, O. (2021). Blood Flow Mediated Hybrid Nanoparticles in Human Arterial System: Recent Research, Development and Applications. Journal of Nanofluids, 10(1), 1-30. https://doi.org/10.1166/jon.2021.1769

Blood flow dynamics contributes an elemental part in the formation and expansion of cardiovascular diseases in human body. Computational simulation of blood flow in the human arterial system has been widely used in recent decades for better understan... Read More about Blood Flow Mediated Hybrid Nanoparticles in Human Arterial System: Recent Research, Development and Applications.

ADM solution for Cu/CuO –water viscoplastic nanofluid transient slip flow from a porous stretching sheet with entropy generation, convective wall temperature and radiative effects (2021)
Journal Article
Thumma, T., Mishra, S., & Beg, O. (2021). ADM solution for Cu/CuO –water viscoplastic nanofluid transient slip flow from a porous stretching sheet with entropy generation, convective wall temperature and radiative effects. Journal of applied and computational mechanics, 7(3), 1291-1305. https://doi.org/10.22055/JACM.2020.33137.2167

A mathematical modelis presented for entropy generation in transient hydromagnetic flow of an electroconductive magnetic Casson (non-Newtonian) nanofluid over a porous stretching sheet in a permeable medium. The Cattaneo-Christov heat flux model is... Read More about ADM solution for Cu/CuO –water viscoplastic nanofluid transient slip flow from a porous stretching sheet with entropy generation, convective wall temperature and radiative effects.

Mathematical modelling of unsteady solute dispersion in two-fluid (micropolar-Newtonian) blood flow with bulk reaction (2021)
Journal Article
Roy, A., & Beg, O. (2021). Mathematical modelling of unsteady solute dispersion in two-fluid (micropolar-Newtonian) blood flow with bulk reaction. International Communications in Heat and Mass Transfer, 122, 105169. https://doi.org/10.1016/j.icheatmasstransfer.2021.105169

A mathematical model is developed for axisymmetric, incompressible, and fully developed hemodynamic transport of a reactive diffusing species, e. g. oxygen, in a rigid, impermeable artery under constant axial pressure gradient which undergoes a fir... Read More about Mathematical modelling of unsteady solute dispersion in two-fluid (micropolar-Newtonian) blood flow with bulk reaction.

Energy conservation of bio-nanofluids past a needle in the presence of Stefan blowing : lie symmetry and numerical simulation (2021)
Journal Article
Beg, O., Zohra, F., Uddin, M., & Ismail, A. (2021). Energy conservation of bio-nanofluids past a needle in the presence of Stefan blowing : lie symmetry and numerical simulation. Case Studies in Thermal Engineering, 24, 100861. https://doi.org/10.1016/j.csite.2021.100861

Thermal energy management associated with the transmission of heat is one of the main problems in many industrial setups (e.g. pharmaceutical, chemical and food) and bioengineering devices (e.g. hospital ventilation, heating, cooling devices, heat... Read More about Energy conservation of bio-nanofluids past a needle in the presence of Stefan blowing : lie symmetry and numerical simulation.

Computational simulations of hybrid mediated nano-hemodynamics (ag-au/blood) through an irregular symmetric stenosis (2021)
Journal Article
Tripathi, J., Vasu, B., & Beg, O. (2021). Computational simulations of hybrid mediated nano-hemodynamics (ag-au/blood) through an irregular symmetric stenosis. Computers in Biology and Medicine, 130, 104213. https://doi.org/10.1016/j.compbiomed.2021.104213

This article examines theoretically and numerically the unsteady two-dimensional blood flow through a diseased artery featuring an irregular stenosis. An appropriate geometric model is adopted to simulate the irregular stenotic artery. Inspired by dr... Read More about Computational simulations of hybrid mediated nano-hemodynamics (ag-au/blood) through an irregular symmetric stenosis.

Linear stability analysis and CFD simulation of thermal viscous fingering instability in anisotropic porous media (2021)
Journal Article
Norouzi, M., Dorrani, S., Shokri, H., & Beg, O. (2021). Linear stability analysis and CFD simulation of thermal viscous fingering instability in anisotropic porous media. Journal of Engineering Mechanics, 147(4), 04021006. https://doi.org/10.1061/%28ASCE%29EM.1943-7889.0001906

The water or steam injection in oil fields is a usual method for enhanced oil recovery in petroleum engineering. The thermo-viscous fingering instability is one of the main problems with complex nature that decreases the efficiency of oil extraction.... Read More about Linear stability analysis and CFD simulation of thermal viscous fingering instability in anisotropic porous media.

Computational fluid dynamic simulation of thermal convection in green fuel cells with finite volume and lattice Boltzmann methods (2021)
Presentation / Conference
Beg, O., Javaid, H., Beg, T., Prasad, V., Kuharat, S., Kadir, A., …Ozturk, Z. (2021, January). Computational fluid dynamic simulation of thermal convection in green fuel cells with finite volume and lattice Boltzmann methods. Presented at ICETP 2021: 15TH Int. Conference on Energy and Thermal Physics, Rome, Italy

The modern thrust for green energy technologies has witnessed considerable efforts in developing efficient, environmentally friendly fuel cells. This has been particularly so in the automotive sector which is the dominant mode of personal... Read More about Computational fluid dynamic simulation of thermal convection in green fuel cells with finite volume and lattice Boltzmann methods.

Computation of viscous channel flow in a rotating magnetohydrodynamic energy generator configuration with oscillatory effects (2021)
Presentation / Conference
Beg, O., Beg, T., El Gendy, M., Kadir, A., & Leonard, H. (2021, January). Computation of viscous channel flow in a rotating magnetohydrodynamic energy generator configuration with oscillatory effects. Presented at ICETP 2021: 15th International Conference on Energy and Thermal Physics, Rome, Italy

With the desire for a green economy in the 21st century, considerable resurgence in renewable energy systems has been witnessed. Among the most promising and least environmentally damaging systems is the MHD (magnetohydrodynamic) energy generator.... Read More about Computation of viscous channel flow in a rotating magnetohydrodynamic energy generator configuration with oscillatory effects.

Multi-objective optimization of the engine performance and emissions for a hydrogen/gasoline dual-fuel engine equipped with the port water injection system (2021)
Journal Article
Salek, F., Babaie, M., Hosseini, S., & Beg, O. (2021). Multi-objective optimization of the engine performance and emissions for a hydrogen/gasoline dual-fuel engine equipped with the port water injection system. International Journal of Hydrogen Energy, 46(17), 10535-10547. https://doi.org/10.1016/j.ijhydene.2020.12.139

Hydrogen is one of the most promising options being considered as the fuel of future. However, injection of hydrogen into modern gasoline fueled engines can cause some issues such as power loss. This study, therefore, aims to address this challenge i... Read More about Multi-objective optimization of the engine performance and emissions for a hydrogen/gasoline dual-fuel engine equipped with the port water injection system.

Finite difference computation of free magneto-convective Powell-Eyring nanofluid flow over a permeable cylinder with variable thermal conductivity (2020)
Journal Article
Kumaran, G., Sivaraj, R., Prasad, V., Beg, O., & Sharma, R. (2021). Finite difference computation of free magneto-convective Powell-Eyring nanofluid flow over a permeable cylinder with variable thermal conductivity. Physica Scripta, 96(2), 025222. https://doi.org/10.1088/1402-4896/abd121

It is essential to account the variability in thermophysical properties such as thermal conductivity to obtain the characteristics of transport properties in industrial thermal systems more accurately. This phenomenon is especially significant in co... Read More about Finite difference computation of free magneto-convective Powell-Eyring nanofluid flow over a permeable cylinder with variable thermal conductivity.

Computation of non-similar flow of a magnetic pseudoplastic nanofluid over a circular cylinder with variable thermophysical properties and radiative flux (2020)
Journal Article
Beg, O., Basha, H., Sivaraj, R., & Prasad, V. (2021). Computation of non-similar flow of a magnetic pseudoplastic nanofluid over a circular cylinder with variable thermophysical properties and radiative flux. International Journal of Numerical Methods for Heat and Fluid Flow, 31(5), 1475-1519. https://doi.org/10.1108/HFF-04-2020-0236

Generally, in computational thermofluid dynamics, the thermophysical properties of flu- ids (e.g. viscosity and thermal conductivity) are considered as constant. However, in many applications, the variability Of these properties plays a significa... Read More about Computation of non-similar flow of a magnetic pseudoplastic nanofluid over a circular cylinder with variable thermophysical properties and radiative flux.

Mixed convection flows of tangent hyperbolic fluid past an isothermal wedge with entropy : a mathematical study (2020)
Journal Article
Reddy, P., Gaffar, S., Khan, M., Venkatadri, K., & Beg, O. (2021). Mixed convection flows of tangent hyperbolic fluid past an isothermal wedge with entropy : a mathematical study. Heat Transfer, 50(3), 2895-2928. https://doi.org/10.1002/htj.22011

The non-linear, steady, mixed convective boundary layer flow and heat transfer of an incompressible tangent hyperbolic non-Newtonian fluid from an isothermal wedge in the presence of magnetic field is analyzed numerically using the Keller Box implici... Read More about Mixed convection flows of tangent hyperbolic fluid past an isothermal wedge with entropy : a mathematical study.

Homotopy simulation of dissipative micropolar flow and heat transfer from a two-dimensional body with heat sink effect : applications in polymer coating (2020)
Journal Article
Beg, O., Vasu, B., Ray, A., Beg, T., Kadir, A., Leonard, H., & Gorla, R. (2020). Homotopy simulation of dissipative micropolar flow and heat transfer from a two-dimensional body with heat sink effect : applications in polymer coating. Chemical and Biochemical Engineering Quarterly, 34(4), 257-275. https://doi.org/10.15255/CABEQ.2020.1849

Non-Newtonian flow from a wedge constitutes a fundamental problem in chemical engineering systems and is relevant to processing of polymers, coating systems etc. Motivated by such applications, we employ the homotopy analysis method (HAM) to obtain... Read More about Homotopy simulation of dissipative micropolar flow and heat transfer from a two-dimensional body with heat sink effect : applications in polymer coating.

Numerical investigation of Von Karman swirling bioconvective nanofluid transport from a rotating disk in a porous medium with Stefan blowing and anisotropic slip effects (2020)
Journal Article
Beg, O., Kabir, M., Uddin, M., Ismail, A., & Alginahi, Y. (2021). Numerical investigation of Von Karman swirling bioconvective nanofluid transport from a rotating disk in a porous medium with Stefan blowing and anisotropic slip effects. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 235(19), 3933-3951. https://doi.org/10.1177/0954406220973061

In recent years, significant progress has been made in modern micro- and nanotechnologies related to applications in micro/nano-electronic devices. These technologies are increasingly utilizing sophisticated fluent media to enhance performance. Amo... Read More about Numerical investigation of Von Karman swirling bioconvective nanofluid transport from a rotating disk in a porous medium with Stefan blowing and anisotropic slip effects.

Numerical simulation and energy flux vector visualization of radiative-convection heat transfer in a porous triangular enclosure (2020)
Journal Article
Venkatadri, K., Beg, O., Rajarajeswari, P., Prasad, V., Rao, A., & Khan, M. (2020). Numerical simulation and energy flux vector visualization of radiative-convection heat transfer in a porous triangular enclosure. Journal of Porous Media, 23(12), 1187-1199. https://doi.org/10.1615/JPorMedia.2020033653

A detailed theoretical examination laminar natural convection heat flow in a triangular porous cavity with significant radiative heat transfer and porosity variation is presented. Twodimensional laminar incompressible flow is considered with the left... Read More about Numerical simulation and energy flux vector visualization of radiative-convection heat transfer in a porous triangular enclosure.