Magnetohydrodynamic double-diffusive natural convection for nanofluid within a trapezoidal enclosure

TR Mahapatra, BC Saha, D Pal - Computational and Applied Mathematics, 2018 - Springer
Double-diffusive natural convection flow in a trapezoidal cavity with various aspect ratios in
the presence of water-based nanofluid and applied magnetic field in the direction …

Unsteady separation leading to secondary and tertiary vortex dynamics: the sub--phenomena

JC Kalita, S Sen - Journal of Fluid Mechanics, 2013 - cambridge.org
Studies on the-phenomenon. Apart from numerical computation, a detailed theoretical
characterization using topological aspects of the boundary layer separation leading to the …

A high‐order pure streamfunction method in general curvilinear coordinates for unsteady incompressible viscous flow with complex geometry

B Wang, P Yu, X Tong, H Ouyang - International Journal for …, 2024 - Wiley Online Library
In this paper, a high‐order compact finite difference method in general curvilinear
coordinates is proposed for solving unsteady incompressible Navier‐Stokes equations. By …

A new transient optimally higher-order compact scheme for computation of flow and heat transfer in nonuniform polar grids

D Deka, S Sen - Physics of Fluids, 2025 - pubs.aip.org
In this work, a higher-order compact discretization is developed on the nonuniform polar
grid. The discretization carries theoretically optimal third-order convergence in space and …

A comprehensive study of secondary and tertiary vortex phenomena of flow past a circular cylinder: A Cartesian grid approach

P Kumar, JC Kalita - Physics of Fluids, 2021 - pubs.aip.org
This study envisages undertaking a comprehensive simulation of the flow past an
impulsively started circular cylinder with special emphasis on vortex dynamics in the …

A 4OEC scheme for the biharmonic steady Navier–Stokes equations in non-rectangular domains

S Sen, JC Kalita - Computer Physics Communications, 2015 - Elsevier
Recently the biharmonic form of the Navier–Stokes (N–S) equations have been solved in
various domains by using second order compact discretization. In this paper, we present a …

Analysis of Heatline and Entropy Generation during Magnetohydrodynamic Natural Convection in a Trapezoidal Enclosure

TR Mahapatra, BC Saha, D Pal, SK Pandit - International Journal of …, 2022 - Springer
This paper presents an analysis of steady natural convection flow in a trapezoidal enclosure
with various aspect ratios in presence of magnetic field applied in the direction …

Fourth order compact schemes for variable coefficient parabolic problems with mixed derivatives

S Sen - Computers & Fluids, 2016 - Elsevier
A fourth order compact numerical scheme for variable coefficient parabolic problems with
mixed derivatives is outlined. The finite difference scheme, presented here shows good …

An efficient ψv scheme for two‐dimensional laminar flow past bluff bodies on compact nonuniform grids

P Kumar, JC Kalita - … Journal for Numerical Methods in Fluids, 2020 - Wiley Online Library
We recently proposed a second‐order accurate ψ‐v formulation of the steady‐state Navier‐
Stokes (N‐S) equations on compact Cartesian nonuniform grids. In the current work, we …

Analysis of heatline and massline in magnetohydrodynamic double diffusive natural convection of nanofluid within a trapezoidal enclosure

BC Saha, TR Mahapatra, D Pal - Journal of Nanofluids, 2018 - ingentaconnect.com
Double diffusive natural convection of nanofluid within a trapezoidal cavity of various aspect
ratios consisting of various nanoparticles including Cu, Ag, Al2O3 and TiO2 in the presence …