B-21 複合型インピンジメント冷却構造に関する研究 : 流れ場の計測と数値シミュレーション(伝熱,一般講演)

概要

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This paper deals with experimental and numerical investigations on the flow field inside compound impingement-cooling structure of turbine blade. The proposed cooling system is a combination of impingement cooling with pin-fin cooling which can enlarge the effective heat transfer area as well as can enhance the internal heat transfer. The purpose of the present study is to clarify detailed flow structure inside the cooling system and to find out any relationship between the flow field and heat transfer. Hot wire anemometer (HWA) is used to measure velocity and turbulence intensity in the large scale model of the cooling system. We also make a comparison between numerical simulation and experimental results.
社団法人日本ガスタービン学会の論文
2004-10-01