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porous body formulation

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Old   November 22, 2002, 03:29
Default porous body formulation
K. Natesan
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I am on the process of solving flow distribution at the inlet plenum of a heat exchanger. In this problem I need to model a region containing 547 small tubes. The pressure drop suffered by the fluid flow due to the presence of tubes in the flow domain can very easily be modeled in star cd using porosity model or permeable baffle models. Apart from modeling the pressure drop, I am also interested in modeling the reduction in net flow area due to the blocking of a part of flow area and the associated velocity increase. Kindly note that modeling of each and every tubes in the flow domain is a very difficult task. Therefore, I am looking for some porosity model which can do both pressure drop as well as mass balance calculation by considering the net flow area reduction. Can anybody explain me how this can be done in star cd.
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