Numerical Prediction of Unsteady Heat and Fluid Flow through a Curved Rectangular Duct of Large Aspect Ratio

Chemical entropy generation and magnetohydrodynamic effects on the unsteady heat and fluid flow through a porous medium have been numerically investigated. The entropy generation due to the use of a magnetic field and porous medium effects on heat transfer, fluid friction, and mass transfer have been analyzed numerically. Using a similarity transformation, the governing equations of continuity, momentum, and energy and concentration equations, of nonlinear system, were reduced to a set of ordinary differential equations and solved numerically. The effects of unsteadiness parameter, magnetic field parameter, porosity parameter, heat generation/absorption parameter, Lewis number, chemical reaction parameter, and Brinkman number parameter on the velocity, the temperature, the concentration, and the entropy generation rates profiles were investigated and the results were presented graphically.

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Numerical modelling for three-dimensional heat and fluid flow through a bank of cylinders in yaw

Journal of Fluid Mechanics ◽

10.1017/s0022112003006712 ◽

2004 ◽

Vol 498 ◽

pp. 139-159 ◽

Cited By ~ 45

Author(s):

A. NAKAYAMA ◽

F. KUWAHARA ◽

T. HAYASHI

Keyword(s):

Fluid Flow ◽

Numerical Modelling ◽

Three Dimensional ◽

Flow Through ◽

Heat And Fluid Flow

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A stable explicit fractional step procedure for the solution of heat and fluid flow through interfaces between saturated porous media and free fluids in presence of high source terms

International Journal for Numerical Methods in Engineering ◽

10.1002/nme.2839 ◽

2010 ◽

pp. n/a-n/a ◽

Cited By ~ 17

Author(s):

F. Arpino ◽

N. Massarotti ◽

A. Mauro

Keyword(s):

Porous Media ◽

Fluid Flow ◽

Fractional Step ◽

Saturated Porous Media ◽

Source Terms ◽

Step Procedure ◽

Flow Through ◽

Heat And Fluid Flow

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Heat and fluid flow through a helical annulus enhanced by a porous material: A perturbation study

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2016.09.113 ◽

2017 ◽

Vol 112 ◽

pp. 1566-1574 ◽

Cited By ~ 3

Author(s):

Nima Tirandaz ◽

Maziar Dehghan ◽

Mohammad Sadegh Valipour

Keyword(s):

Fluid Flow ◽

Porous Material ◽

Flow Through ◽

Heat And Fluid Flow

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Flow through curved rectangular channels of large aspect ratio

AIChE Journal ◽

10.1002/aic.690410503 ◽

1995 ◽

Vol 41 (5) ◽

pp. 1061-1070 ◽

Cited By ~ 12

Author(s):

Matthew J. Targett ◽

William B. Retallick ◽

Stuart W. Churchill

Keyword(s):

Aspect Ratio ◽

Large Aspect Ratio ◽

Rectangular Channels ◽

Flow Through

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Effect of Lateral Walls on Peristaltic Flow through an Asymmetric Rectangular Duct

Applied Bionics and Biomechanics ◽

10.1155/2011/424183 ◽

2011 ◽

Vol 8 (3-4) ◽

pp. 295-308 ◽

Cited By ~ 10

Author(s):

Kh. S. Mekheimer ◽

S. Z.-A. Husseny ◽

A. I. Abd el Lateef

Keyword(s):

Reynolds Number ◽

Aspect Ratio ◽

Viscous Fluid ◽

Wave Train ◽

Peristaltic Flow ◽

Frame Of Reference ◽

Rectangular Duct ◽

Long Wavelength ◽

Flow Through ◽

Lateral Walls

Peristaltic transport of an incompressible viscous fluid due to an asymmetric waves propagating on the horizontal sidewalls of a rectangular duct is studied under long-wavelength and low-Reynolds number assumptions. The peristaltic wave train on the walls have different amplitudes and phase. The flow is investigated in a wave frame of reference moving with velocity of the wave. The effect of aspect ratio, phase difference, varying channel width and wave amplitudes on the pumping characteristics and trapping phenomena are discussed in detail. The results are compared to with those corresponding to Poiseuille flow.

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