Investigation of turbulence effects on forced convection in a composite porous/fluid duct: Constant wall flux and constant wall temperature cases |
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Authors: | Email author" target="_blank">A?V?KuznetsovEmail author L?Cheng M?Xiong |
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Institution: | (1) Department of Mechanical and Aerospace Engineering, North Carolina State University, Campus Box 7910, Raleigh, NC 27695-7910, USA, |
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Abstract: | Forced convection heat transfer in composite porous/fluid domains is of great practical and theoretical significance. However,
research in this area traditionally addressed only the laminar flow case in both homogeneous fluid and porous regions of the
domain. This paper investigates the interaction between turbulent flow in the center of a circular tube filled with a homogeneous
fluid and laminar flow in the porous layer adjacent to the tube wall. A two-layer algebraic turbulence model suggested by
Cebeci and Smith is utilized for the flow in the central region of the tube. The effects of turbulence in the central region
on velocity and temperature distributions as well as on the Nusselt number are analyzed. |
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Keywords: | |
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