Transient heat transfer in air saturated porous media in a short cylinder

1984 ◽  
Vol 11 (4) ◽  
pp. 369-376 ◽  
Author(s):  
W.E. Stewart ◽  
D.R. Smith
Keyword(s):  
Heat Transfer ◽  
Porous Media ◽  
Transient Heat Transfer ◽  
Saturated Porous Media ◽  
Short Cylinder

The Thermohydraulic Characteristics and Optimization Study of Radial Porous Heatsinks Using Multi-Objective Computational Method

2021 ◽  
Author(s):  
Amer Al-damook ◽  
Itimad D J Azzawi
Keyword(s):  
Heat Transfer ◽  
Porous Media ◽  
Entropy Generation ◽  
Heat Sink ◽  
Flow Direction ◽  
Inlet Temperature ◽  
Conductive Heat ◽  
Saturated Porous Media ◽  
Total Entropy ◽  
Multi Objective

Abstract The use of porous media to improve conductive heat transfer has been at the focus of interest in recent years. Limited studies, however, have focused on heat transfer in radial heat sinks fully and partially saturated porous media with a different arrangement. The current research, therefore, addresses the ability of radial porous heat sink solutions as a development of the above-mentioned investigations to improve the thermohydraulic characteristics and reduce the effect of 2nd thermodynamics law. The response surface method technique (RSM) with ANSYS FLUENT-CFD is accomplished to optimize the thermohydraulic features and the total entropy generation by the multi-objective optimum design for different parameters design such as porosity (Ø), inlet temperature (Tin) and applied heat flux (Q) simultaneously after achieving the optimum porous media arrangement related to the flow direction. The results showed that in terms of the flow direction, the optimum radial porous heat sink of 100%PM model was recognized (fully saturated porous media). Moreover, a significant agreement between the predicted and numerical simulation data for the optimum values is also seen. The optimum and undesirable designs of the thermohydraulic features, the total entropy generation and the optimum thermal management are detected in this investigation.

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