scholarly journals Discussion: “The Influence of Wall Conductance on Magnetohydrodynamic Channel-Flow Heat Transfer” (Snyder, W. T., 1964, ASME J. Heat Transfer, 86, pp. 552–556)

1964 ◽  
Vol 86 (4) ◽  
pp. 556-557
Author(s):  
W. Tripp ◽  
U. P. Hwang ◽  
C. L. Hwang ◽  
L. T. Fan
Keyword(s):  
Heat Transfer ◽  
Channel Flow ◽  
Flow Heat ◽  
Magnetohydrodynamic Channel

The Influence of Wall Conductance on Magnetohydrodynamic Channel-Flow Heat Transfer

1964 ◽  
Vol 86 (4) ◽  
pp. 552-556 ◽  
Author(s):  
W. T. Snyder
Keyword(s):  
Heat Transfer ◽  
Electrical Conductivity ◽  
Channel Flow ◽  
Operating Conditions ◽  
Modes Of Operation ◽  
Electrical Loading ◽  
Finite Electrical Conductivity ◽  
Flow Heat ◽  
Magnetohydrodynamic Channel ◽  
Accelerator Modes

An analysis is made of the influence of finite electrical conductivity of the walls on fully developed magnetohydrodynamic channel-flow heat transfer. The analysis is based on arbitrary external electrical loading and is thus valid for both generator and accelerator modes of operation. Constant properties of the fluid and walls are assumed. It is shown that under certain operating conditions of external electrical loading, the fluid bulk to wall temperature difference for conducting walls differs substantially from that for electrically insulating walls. Representative numerical calculations are presented.

Heat Transfer Characteristics of Baffled Channel Flow

2011 ◽  
Author(s):  
Changwoo Kang ◽  
Kyung-Soo Yang
Keyword(s):  
Heat Transfer ◽  
Channel Flow ◽  
Large Scale ◽  
Heat Removal ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Flow Heat ◽  
Two Parameters ◽  
Time Periodic

Heat transfer characteristics of baffled channel flow, where thin baffles are mounted on both channel walls periodically in the direction of the main flow, have been numerically investigated in a laminar range. In baffled channel flow, heat transfer characteristics are significantly affected by large-scale vortices generated due to flow separation at the tips of the baffles. In this investigation, a parametric study has been carried out to identify the optimal configuration of the baffles to achieve the most efficient heat removal from the channel walls. Two key parameters are considered, namely baffle interval (L) and Reynolds number (Re). We elucidate the role of the primary instability, a Hopf bifurcation from steady to a time-periodic flow, in the convective heat transfer in baffled channel flow. We also propose a contour diagram (“map”) of averaged Nusselt number on the channel walls as a function of the two parameters. The results shed light on understanding and controlling heat transfer mechanism in a finned heat exchanger, being quite beneficial to its design.

Effect of Rib Profiles on Turbulent Channel Flow Heat Transfer

1998 ◽  
Vol 12 (1) ◽  
pp. 116-118 ◽  
Author(s):  
Pankaj R. Chandra ◽  
Michael L. Fontenot ◽  
Je-Chin Han
Keyword(s):  
Heat Transfer ◽  
Channel Flow ◽  
Turbulent Channel Flow ◽  
Flow Heat
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