Numerical study of fully developed non-newtonian fluid flow and heat transfer in a rectangular channel with a moving wall

1997 ◽  
Vol 24 (1) ◽  
pp. 11-25 ◽  
Author(s):  
Seppo Syrjälä
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Newtonian Fluid ◽  
Numerical Study ◽  
Rectangular Channel ◽  
Moving Wall ◽  
Flow And Heat Transfer

scholarly journals Numerical study of Unsteady Fluid Flow and Heat Transfer Through a Rotating Curved Rectangular Channel

2018 ◽  
Vol 37 ◽  
pp. 73-92 ◽  
Author(s):  
Md Zohurul Islam ◽  
Md Arifuzzaman ◽  
Rabindra Nath Mondal
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Steady State ◽  
Unsteady Flow ◽  
Numerical Study ◽  
Rectangular Channel ◽  
Chaotic Flow ◽  
Flow And Heat Transfer ◽  
Unsteady Fluid Flow ◽  
Unsteady Fluid

Numerical study of unsteady fluid flow and heat transfer through a rotating curved rectangular channel with aspect ratio 2 and curvature ratio 0.05 has been performed by using a spectral-based numerical method, and covering a wide range of the rotational parameter, the Taylor number Ta, for both the positive and negative rotation of the channel. In this paper, unsteady flow characteristics are investigated under combined action of the centrifugal, Coriolis and buoyancy forces for the Dean number De = 1000. For positive rotation, we investigated unsteady solutions for 0 ≤Ta ≤500, and it is found that the chaotic flow turns into steady-state flow through periodic or multi-periodic flows. For negative rotation, on the other hand, unsteady solutions are investigated for –500 ≤Ta≤0, and it is found that the unsteady flow undergoes through various flow instabilities. Typical contours of secondary flow patterns and temperature profiles are obtained at several values of Ta, and it is found that the unsteady flow consists of asymmetric two- to eightvortex solutions. The present study shows that convective heat transfer is significantly enhanced as the secondary flow becomes stronger and the chaotic flow enhances heat transfer more effectively than the steady-state or periodic solutions.GANIT J. Bangladesh Math. Soc.Vol. 37 (2017) 73-92

A Parametric Numerical Study of Fluid Flow and Heat Transfer in a Computer Chassis

2015 ◽  
Vol 9 (3) ◽  
pp. 242 ◽  
Author(s):  
Efstathios Kaloudis ◽  
Dimitris Siachos ◽  
Konstantinos Stefanos Nikas
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Numerical Study ◽  
Flow And Heat Transfer
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