直交回転正方形管内の流れと熱伝達の基本特性

概要

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Fully developed laminar flow in a square duct rotating about a perpendicular axis is investigated by similarity arguments and computational studies. Flow and heat transfer characteristics are expressed by the dimensionless number K_<LR> which was introduced by the author, and the Rossby number R_O. The flow patterns are shown for large and small values of K_<LR> and R_O. It is shown that, above a critical K_<LR>, a pair of vortices due to hydrodynamic instability appears near the center of the pressure-side wall in addition to the secondary flow vortices. The computational results for friction factor and heat transfer are given and compared with those of flow in a circular pipe. The properties of secondary flow and flow instability are discussed in some detail.
一般社団法人日本機械学会の論文
1996-05-25