Prof Osman Beg's Outputs (449)

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.

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.

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.

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.

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.

Entropy generation in magnetohydrodynamic radiative non-Newtonian dissipative convection flow from an inclined plane : numerical study (2020)
Journal Article
Gaffar, S., Rehman, K., Beg, O., & Prasad, V. (2020). Entropy generation in magnetohydrodynamic radiative non-Newtonian dissipative convection flow from an inclined plane : numerical study. Nanoscience and Technology: An International Journal, 11(4), 297-326. https://doi.org/10.1615/NanoSciTechnolIntJ.2020033849

A theoretical model is developed to study entropy generation in non-Newtonian
magnetohydrodynamic thermal convection from an inclined plate as a simulation of electroconductive polymer materials processing of relevance to automotive coating applicat... Read More about Entropy generation in magnetohydrodynamic radiative non-Newtonian dissipative convection flow from an inclined plane : numerical study.

Computation of radiative Marangoni (thermocapillary) magnetohydrodynamic convection in Cu-water based nanofluid flow from a disk in porous media : smart coating simulation (2020)
Journal Article
Shamshuddin, M., Mishra, S., Beg, O., Beg, T., & Kadir, A. (2021). Computation of radiative Marangoni (thermocapillary) magnetohydrodynamic convection in Cu-water based nanofluid flow from a disk in porous media : smart coating simulation. Heat Transfer, 50(3), 1931-1950. https://doi.org/10.1002/htj.21963

With emerging applications for smart and intelligent coating systems in energy, there has been increasing activity
in researching magnetic nano nanomaterial coating flows. Surface tension features significantly in such regimes,
and in presence of h... Read More about Computation of radiative Marangoni (thermocapillary) magnetohydrodynamic convection in Cu-water based nanofluid flow from a disk in porous media : smart coating simulation.

Micropolar pulsatile blood flow conveying nanoparticles in a stenotic tapered artery : non-Newtonian pharmacodynamic simulation (2020)
Journal Article
Vasu, B., Dubey, A., Beg, O., & Gorla, R. (2020). Micropolar pulsatile blood flow conveying nanoparticles in a stenotic tapered artery : non-Newtonian pharmacodynamic simulation. Computers in Biology and Medicine, 126, 104025. https://doi.org/10.1016/j.compbiomed.2020.104025

Two-dimensional rheological laminar hemodynamics through a diseased tapered artery with a
mild stenosis present is simulated theoretically and computationally. The effect of different
metallic nanoparticles homogeneously suspended in the blood is c... Read More about Micropolar pulsatile blood flow conveying nanoparticles in a stenotic tapered artery : non-Newtonian pharmacodynamic simulation.

Hall current, viscous and Joule heating effects on steady radiative 2-D magneto-power-law polymer dynamics from an exponentially stretching sheet with power-law slip velocity : a numerical study (2020)
Journal Article
Shamshuddin, M., Khan, S., Beg, O., & Beg, T. (2020). Hall current, viscous and Joule heating effects on steady radiative 2-D magneto-power-law polymer dynamics from an exponentially stretching sheet with power-law slip velocity : a numerical study. Thermal Science and Engineering Progress, 20, 100732. https://doi.org/10.1016/j.tsep.2020.100732

A mathematical model is developed for 2-D laminar, incompressible, electrically conducting
non-Newtonian (Power-law) fluid boundary layer flow along an exponentially stretching
sheet with power-law slip velocity conditions in the presence of Hall c... Read More about Hall current, viscous and Joule heating effects on steady radiative 2-D magneto-power-law polymer dynamics from an exponentially stretching sheet with power-law slip velocity : a numerical study.

Convective fluid flow and heat transfer in a vertical rectangular duct containing a horizontal porous medium and fluid layer (2020)
Journal Article
Umavathi, J., & Beg, O. (2021). Convective fluid flow and heat transfer in a vertical rectangular duct containing a horizontal porous medium and fluid layer. International Journal of Numerical Methods for Heat and Fluid Flow, 31(4), 1320-1344. https://doi.org/10.1108/HFF-06-2020-0373

Purpose-A numerical analysis is presented to investigate thermally and
hydrodynamically fully developed convection in a duct of rectangular cross-section
containing a porous medium and fluid layer.
Design/methodology/approach-The Darcy-Brinkman-Fo... Read More about Convective fluid flow and heat transfer in a vertical rectangular duct containing a horizontal porous medium and fluid layer.

Modeling the onset of thermosolutal convective instability in a non-Newtonian nanofluid-saturated porous medium layer (2020)
Journal Article
Umavathi, J., & Beg, O. (2020). Modeling the onset of thermosolutal convective instability in a non-Newtonian nanofluid-saturated porous medium layer. Chinese Journal of Physics, 68, 147-167. https://doi.org/10.1016/j.cjph.2020.09.014

The onset of double-diffusive (thermosolutal) convection in horizontal porous layer saturated
with an incompressible couple stress nanofluid saturated is studied with thermal conductivity
and viscosity dependent on the nanoparticle volume fraction.... Read More about Modeling the onset of thermosolutal convective instability in a non-Newtonian nanofluid-saturated porous medium layer.

Numerical simulation of hydromagnetic Marangoni convection flow in a Darcian porous semiconductor melt enclosure with buoyancy and heat generation effects (2020)
Journal Article
Beg, O., Venkatadri, K., Prasad, V., Beg, T., Kadir, A., & Leonard, H. (2020). Numerical simulation of hydromagnetic Marangoni convection flow in a Darcian porous semiconductor melt enclosure with buoyancy and heat generation effects. Materials Science and Engineering: B, 261, 114772. https://doi.org/10.1016/j.mseb.2020.114722

We present a mathematical and numerical study of the transient Marangoni thermo-convection flow of an
electrically conducting Newtonian fluid in an isotropic Darcy porous rectangular semiconductor melt
enclosure with buoyancy and internal heat gene... Read More about Numerical simulation of hydromagnetic Marangoni convection flow in a Darcian porous semiconductor melt enclosure with buoyancy and heat generation effects.

Electro-osmotic nanofluid flow in a curved microchannel (2020)
Journal Article
Narla, V., Tripathi, D., & Beg, O. (2020). Electro-osmotic nanofluid flow in a curved microchannel. Chinese Journal of Physics, 67, 544-558. https://doi.org/10.1016/j.cjph.2020.08.010

Biological mechanisms offer significant improvement in the efficiency of next generation energv systems. Motivated by new developments in distensible pumping systems, ionic electro-kinetic manipulation and nanoscale liquids(“nanofluids"), in the pres... Read More about Electro-osmotic nanofluid flow in a curved microchannel.

Unsteady nonlinear magnetohydrodynamic micropolar transport phenomena with hall and ion-slip current effects : numerical study (2020)
Journal Article
Beg, O., Beg, T., Ferdows, M., Vasu, B., Kadir, A., Leonard, H., & Kuharat, S. (2021). Unsteady nonlinear magnetohydrodynamic micropolar transport phenomena with hall and ion-slip current effects : numerical study. International Journal of Applied Electromagnetics and Mechanics, 65(2), 371-403. https://doi.org/10.3233/JAE-201508

Unsteady viscous two-dimensional magnetohydrodynamic micropolar flow, heat and mass transfer from an infinite vertical surface with Hall
and Ion-slip currents is investigated theoretically and numerically. The simulation presented is motivated by el... Read More about Unsteady nonlinear magnetohydrodynamic micropolar transport phenomena with hall and ion-slip current effects : numerical study.