The Use of CFD in Turbomachinery Applications

計算流體力學在渦輪機械的應用

10.6124/TAASRC.200003_32(1).01

陳世雄(S. H. Chen)；蘇聖斌(S. P. Su)；李隆正(L. C. Lee)；黃朝約(T. Y. Hwang)

計算流體力學 ； 渦輪機械 ； 交互作用 ； 定常 ； 非定常 ； 周邊平均法 ； CFD ； turbomachine ； interaction ； steady ； unsteady ； circumferential average method

中國航空太空學會學刊

32卷1期（2000 / 03 / 01）

1 - 24

英文

渦輪機械的流場分析在過去被認爲是工程上最困難的問題之，在計算流體力學(CFD)發展之後，許多渦輪機械流體相關的問題現在都能夠得到很好的解答。本文的目的是將應用在渦輪機械設計與分析上的流體計算技巧做一簡單的介紹，在計算過程中所使用的主要工具爲三維Navier-Stokes黏性計算方法及交談式網格建立法。文中所舉的例子包含了軸流與離心葉輪、及在定常或非定常的運轉條件，問題的困難度從最簡單的軸流風扇到複雜的轉子與靜子交互作用分析都包含在內，每一個問題的關鍵點及解析步驟都將予以說明，其計算結果與物理現象也有所討論。

The flowfield in turbomachinery components has been considered to be one of the most difficult problems in the past. With the advent of computational fluid dynamics (CFD) methods, many difficult turbomachinery flow problems can now be solved with a good degree of accuracy. The objective of this paper is to describe the applications of computational techniques in various turbomachinery related analysis and design. Three-dimensional Navier-Stokes solvers and interactive grid generator were used as the tools in these studies. The examples shown include axial and centrifugal flow impellers at steady and/or unsteady operating conditions. The problems discussed have different degrees of complexity ranging from a simple axial flow fan calculation to more complicated unsteady rotor-stator interactions. The key points of each problem and the solution procedures are described. The solutions and their physics are also discussed.

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