主流乱れと後流の影響を受ける非定常平板境界層に関する研究

概要

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Detailed experimental studies are conducted to investigate the effects of incident wakes generated by moving circular cylinders on transitional boundary layers on a flat plate in simulated flow conditions of aero-engines. In this paper, main purpose of this study is to develop a transition model of boundary layers under the influence of upstream wakes as well as free-stream turbulence, which is finally to be applied to turbine cooling design. Measurements are made on heat transfer distributions along the flat plate which is subjected to the incoming periodic wakes with various wake conditions and also free-stream turbulence generated by several types of turbulence grids. The obtained data are then compared with the transition model and it follows that the proposed transition model yields reasonable results.
公益社団法人日本ガスタービン学会の論文
1993-12-10