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Numerical Analysis of Turbine Stator Flow

滑輪靜子葉片流場數值分析

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摘要


本研究的目的在發展一系列飛機滑輪引擎之靜子葉片的計算流體力學方法與程式,計算程式方面包括三維葉片格點的建立與黏性流程式開發及撰寫等,程式發展完成後將進行一系列外形及氣流條件計算模擬。除驗證各式正確性外並模擬葉片外形對氣流分離、震波/邊界層相互干擾及壓縮比等關係,以及流體黏滯性等影響下,引擎能量損失與效益分析。以尋找出葉片對能量轉換過程中,因氣動力原因而造成能量損失的原因,進而提供改良建議。

關鍵字

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並列摘要


The propose of this project is to develop a three-dimensional, compressible Navier-Stokes solver for detailed study the flow inside transonic turbine and compressor's stator in the airplane turbomachinery. In this study, the transonic shock-wave/boundary-layer interaction and viscous shear stress for the turbine and compressor stator were simulated used the implicit two-factor flux-splitting schemes for solving the thin-layer compressible flow. The computed results compared favorably with measurements and the corresponding shock boundary-layer interaction and energy loose during transonic speed was described.

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