Journal ArticleDOI
Heat transfer in a high Hartmann number MHD duct flow with a circular cylinder placed near the heated side-wall
TLDR
In this paper, the effects of blockage ratio, gap ratio and Reynolds number on the flow and heat transfer were investigated and an optimal cylinder position was determined using an efficiency index defined as the ratio of heat transfer enhancement to pressure drop penalty resulting from insertion of the cylinder in the channel.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2013-12-01. It has received 43 citations till now. The article focuses on the topics: Potential flow around a circular cylinder & Heat transfer enhancement.read more
Citations
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Journal ArticleDOI
MHD flow and heat transfer behind a square cylinder in a duct under strong axial magnetic field
TL;DR: In this article, a quasi-two-dimensional conditionality was used to capture the MHD vortex dynamics around a square object in a square duct subjected to a strong externally imposed axial magnetic field.
Journal ArticleDOI
Heat transfer enhancement using rectangular vortex promoters in confined quasi-two-dimensional magnetohydrodynamic flows
TL;DR: In this paper, a quasi-two-dimensional magnetohydrodynamic model is employed to model the flow using high-resolution numerical simulation and the gap height and angle of attack of a rectangular cylinder, with aspect ratio α = 1/2 and blockage ratio β = 1 / 4, are independently varied to establish relationships between obstacle configuration and heat transfer efficiency.
Journal ArticleDOI
Combining an obstacle and electrically driven vortices to enhance heat transfer in a quasi-two-dimensional MHD duct flow
TL;DR: In this paper, the authors investigated the use of current injection to invoke a street of vortices in quasi-two-dimensional high transverse magnetic field magnetohydrodynamic duct flows to enhance instability behind a cylinder.
Journal ArticleDOI
The effect of rotation on radial horizontal convection and Nusselt number scaling in a cylindrical container
TL;DR: In this paper, the effect of rotation on horizontal convection flow in a free-surface cylindrical enclosure driven by a radially increasing temperature profile along the base is investigated numerically and theoretically.
Journal ArticleDOI
Numerical study of the MHD flow around a bounded heating cylinder: Heat transfer and pressure drops
TL;DR: In this paper, numerically the flow around an electrically insulated heating cylinder, bounded by walls of non-uniform electrical conductivity and subjected to a transversal magnetic field, with non-null components in the toroidal and poloidal directions, was investigated by simulations performed in a 3D domain.
References
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Journal ArticleDOI
High-order splitting methods for the incompressible Navier-Stokes equations
TL;DR: Improved pressure boundary conditions of high order in time are introduced that minimize the effect of erroneous numerical boundary layers induced by splitting methods, and a new family of stiffly stable schemes is employed in mixed explicit/implicit time-intgration rules.
Book
Spectral/hp Element Methods for Computational Fluid Dynamics
TL;DR: In this article, Jacobi polynomials Gauss-type integration Collocation differentiation Co discontinuous expansion bases are used to simulate incompressible flows in one-dimensional expansion bases.
Journal ArticleDOI
Flow around a circular cylinder near a plane boundary
P.W. Bearman,M. M. Zdravkovich +1 more
TL;DR: In this article, the authors measured the mean pressure around a circular cylinder placed at various heights above a plane boundary and found that the turbulent boundary layer on the plate at the cylinder position, but with it removed from the tunnel, was equal to 0·8 of the cylinder diameter.
Journal ArticleDOI
Magnetohydrodynamic flow in rectangular ducts
TL;DR: In this paper, an analysis of laminar motion of a conducting liquid in a rectangular duct under a uniform transverse magnetic field is presented, and the effects of the duct having conducting walls are investigated.
Journal ArticleDOI
Why, how, and when, MHD turbulence becomes two-dimensional
Joël Sommeria,Rene Moreau +1 more
TL;DR: In this article, a description of MHD turbulence at low magnetic Reynolds number and large interaction parameter is proposed, in which attention is focussed on the role of insulating walls perpendicular to a uniform applied magnetic field.
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