A-3 流体・熱伝導連成による2次元翼列の熱伝達解析における乱流モデルの影響(伝熱I,一般講演)

概要

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In flow simulation with large strain rate, the selection of turbulence model gives unignorable influence on heat transfer prediction, which is known as the stagnation anomaly. Typical turbine cascade flow includes stagnation on leading edge, secondary flows, and wake, all of which possibly produces large velocity strain rate. Similar and possibly greater influence is expected on the conjugate simulation results, and it must be thoroughly examined. A time-scale bound is applied to basic k-ω and SST models install in the common CFD platform UPACS. This paper discusses influences of turbulence model selection on heat transfer prediction in two-dimensional turbine cascade with simple internal convective cooling.
公益社団法人日本ガスタービン学会の論文
2006-10-01