RESEARCH OF MODERN DESIGN TECHNIQUE FOR HYDRAULIC TURBINE RUNNER

机译：水轮机转轮现代设计技术研究

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In this paper, we present a brief introduction to the hydraulic turbine runner cracks and their treatment measures both in china and outside china, analysis mechanism of the crack occurrence by the hydrodynamics principle .It is thought to be one of the most important dynamics reasons that at trailing edge, there are the obvious Karman vortex street and its characteristic frequency F, and the excited force P of flow vortices. Here, we deduce the formula to calculate frequency F and excited force P, by analyzing the latest CFD technique applied in hydraulic turbine runner design process, we bring up the modern design technique for hydraulic turbine runner.

机译：本文简要介绍了国内外水轮机转轮裂纹及其处理措施，利用流体力学原理分析了裂纹发生的机理。这被认为是造成这一现象的最重要的动力学原因之一。在后缘，有明显的卡曼涡街和特征频率F，以及流动涡流的激振力P。在此，我们推导了计算频率F和激振力P的公式，通过分析在水轮机转轮设计过程中采用的最新CFD技术，提出了水轮机转轮的现代设计技术。

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来源
《International Symposium on Fluid Machinery and Fluid Engineering(ISFMFE); 20041201-03; Beijing(CN)》|2004年|P.287-293|共7页
会议地点 Beijing(CN)
作者
QI XUE YI; HE YONG CHENG;
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作者单位

Lan Zhou University of Science and Technology 730050 China 0931-2740036;

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会议组织
原文格式 PDF
正文语种 eng
中图分类流体力学;
关键词
hydraulic turbine runner; crack; Karman vortex street frequency F; excited force P; CFD technique; modern design technique;

机译：水轮机转轮;裂纹;卡尔曼涡街频率F;激振力P; CFD技术;现代设计技术;

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RESEARCH OF MODERN DESIGN TECHNIQUE FOR HYDRAULIC TURBINE RUNNER

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