Application of Spalart-Allmaras turbulence model to flow calculation of Francis runner with splitter blades

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	Application of Spalart-Allmaras turbulence model to flow calculation of Francis runner with splitter blades
	Hou, Yihua; Qi, Xueyi; Zhang, Jing; Min, Zheng
刊名	Shuili Fadian Xuebao/Journal of Hydroelectric Engineering
	2010-02-01
卷号	29 期号:1 页码:152-157+132
关键词	Computational fluid dynamics Finite volume method Warships Well pumps Finite volume discretizations Flow calculations Flow field calculation Francis runner Spalart-Allmaras turbulence model Splitter blade Standard k epsilons Stokes equations
ISSN号	10031243
英文摘要	The velocity and pressure fields of Francis runner with splitter blades were calculated by solving the continuity and Navies-Stokes equations and using Spalart-Allmaras turbulence model, SIMPLIC scheme and finite-volume discretization. Comparison of the results with a standard k-Ε model and experimental data proves the validity of S-A model. The pressures on hub, shroud and the middle flow path calculated by the two turbulence models are similar, and near the design point the difference is quite small, but it increases with deviation from that point. The maximum difference of pressures appears at the inlet and outlet where neither of the two turbulence models is reliable. This study indicats that S-A model of better convergence and less cost is a valid tool for calculation of flows in Francis runner with splitter blades.
语种	中文
出版者	Tsinghua University Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111394]
专题	兰州理工大学
作者单位	Collage of Fluid Power and Control, Lanzhou Univ. of Tech., Lanzhou 730050, China
推荐引用方式 GB/T 7714	Hou, Yihua,Qi, Xueyi,Zhang, Jing,et al. Application of Spalart-Allmaras turbulence model to flow calculation of Francis runner with splitter blades[J]. Shuili Fadian Xuebao/Journal of Hydroelectric Engineering,2010,29(1):152-157+132.
APA	Hou, Yihua,Qi, Xueyi,Zhang, Jing,&Min, Zheng.(2010).Application of Spalart-Allmaras turbulence model to flow calculation of Francis runner with splitter blades.Shuili Fadian Xuebao/Journal of Hydroelectric Engineering,29(1),152-157+132.
MLA	Hou, Yihua,et al."Application of Spalart-Allmaras turbulence model to flow calculation of Francis runner with splitter blades".Shuili Fadian Xuebao/Journal of Hydroelectric Engineering 29.1(2010):152-157+132.