C211 DNSによる逆圧力こう配乱流温度境界層の統計量解析(C-21 乱流熱物質移動および反応流(3),一般講演)

概要

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Direct numerical simulations of a turbulent thermal boundary layer developing on a uniformly heated flat plate have been performed. The computational domain is composed of two parts, i.e., one is the driver part where a zero-pressure-gradient (ZPG) flow is calculated and used as the inflow boundary condition for the main simulation; and the other is the main part where an adverse-pressure-gradient (APG) flow is simulated. In the present study, the Reynolds number based on the momentum thickness at the inlet is 300, and the Prandtl number is 0.71. In the APG simulation, the skin friction coefficient decreases drastically. On the other hand, the Stanton number keeps a value similar to ZPG flows. This important characteristic conforms to the corresponding experimental results of non-equilibrium APG flows.
日本流体力学会の論文
2004-08-09