冷却翼開発における熱流体連成シミュレーションの適用とパイロメータによる実機での温度計測

概要

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In the development process of cooled turbine blade, precise prediction of blade temperature at the design stage and precise temperature measurement in the prototype engine test are both very important for reduction of design turn around time. In this paper, CHTflow (Conjugate Heat Transfer and Flow) analysis is applied to modification of cooling hole arrangement, and is shown to be a powerful tool. Effect of modification can soon be checked with Pyrometry temperature measurement system, which also makes cooling design and/or modification more effective. New cooling technology DJFC (Double Jet Film Cooling), developed by the authors, are under research for cooled blade application with CHTflow analysis and Pyrometry measurement.
社団法人日本ガスタービン学会の論文
2008-01-20