轴流式转轮三元粘性流动数值计算

Numerical Computation of Three Dimensional Viscous Flow of Axial Flow Runner

作者：杨昌明(西南石油大学油气藏地质及开发工程国家重点实验室，四川成都 610500)；陈次昌(西南石油大学油气藏地质及开发工程国家重点实验室，四川成都 610500)；张涛(西南石油大学油气藏地质及开发工程国家重点实验室，四川成都 610500)

Author：(State Key lab.of oil and Gas Reservoir Geolgy and Exploitation, Southwest Petroleum University, Chengdu 610500, China)；(State Key lab.of oil and Gas Reservoir Geolgy and Exploitation, Southwest Petroleum University, Chengdu 610500, China)；(State Key lab.of oil and Gas Reservoir Geolgy and Exploitation, Southwest Petroleum University, Chengdu 610500, China)

收稿日期：2006-04-11 年卷（期）页码：2006,38(6):140-143

期刊名称：工程科学与技术

Journal Name：Advanced Engineering Sciences

关键字：轴流式转轮;三维湍流;数值计算

Key words：axial flow runner; three dimensional turbulent flow;numerical computation

基金项目：国家自然科学基金资助项目( 90410013 )

中文摘要

为进一步提高轴流式转轮的设计精度与性能，采用时均Navier-Stokes控制方程，标准k-ε湍流模型及SIMPLEC算法，对一轴流定浆式水轮机转轮内三元粘性流动进行了数值模拟。提出了水力损失计算方法，获得了转轮的预测效率。分析了转轮内部流场分布规律，建立了叶片表面压力在包角范围内的变化曲线，有助于认识转轮内真实流动现象，为改善设计提供可视化数据支持。

英文摘要

In order to enhance design accuracy and performance，three dimensional viscous flow inside axial flow runner is simulated based on time averaged Navier-Stokes equations, standard k-ε turbulence model, and SIMPLEC algorithm. Predicted efficiency of axial flow runner is obtained according to computational approach of hydraulic loss. distribution pattern of flow fields in axial flow runner obtained by the simulation can be used to understand true flow phenomena and improve design, and established pressure variation curve in wrapping angle of blade.

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论文摘要

轴流式转轮三元粘性流动数值计算

Numerical Computation of Three Dimensional Viscous Flow of Axial Flow Runner