Article ID Journal Published Year Pages File Type
657944 International Journal of Heat and Mass Transfer 2013 15 Pages PDF
Abstract
This study investigates the influence of physical properties on heat transfer between solid and fluid phases in a cross flow moving porous bed, in which the fluid moves with longitudinal and transversal components with respect to the permeable bed. For simulating flow and heat transfer, a two-energy equation model is applied in addition to a mechanical model. Transport equations are discretized using the control-volume method and the system of algebraic equations is relaxed via the SIMPLE algorithm. The effects of flow properties, such as Reynolds number, solid-to-fluid velocity ratio, permeability and porosity, as well as the effects of thermal properties, namely solid-to-fluid thermal capacity and solid-to-fluid thermal conductivity ratio, are analyzed. The numerical results show that the Reynolds number affects strongly the flow behavior and for high values of the solid-to-fluid velocity ratio, solid-to-fluid thermal capacity ratio and solid-to-fluid thermal conductivity ratio, there is a decrease in temperature gradients everywhere in the domain and the fluid temperature reaches higher values mainly in the symmetry region of the channel.
Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
Authors
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