Numerical Investigation of Forced Convection in a Horizontal Channel With a Built-In Triangular Prism

摘要

For the studied configuration shown in Fig. 1, results are sum- marized as follows: (1)the transition from symmetric flow to periodic flow is observed at Reynolds number in the vicinity of 45; (2) the Strouhal number of the periodic flow behaves as St =0.2294-0.4736/√Re; and (3) for the symmetric flow (Re＜45) the presence of the triangular prism has only a local weak effects on the heat transfer and on the flow pattern, while, in periodic flow (Re≥45), heat transfer is seen to increase strongly with Rey- nolds number in presence of the triangular prism. This result can be of interest in engineering.