Numerical Prediction of Unsteady Turbulent Flow in Francis Turbine

机译：混流式水轮机非定常湍流的数值预测

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In terms of N-S equation and large eddy simulation (LES) models, by utilizing the body-fitted coordinates and tetrahedral grids system, solving with the SIMPLE algorithm, the author of this paper conducted 3-D unsteady turbulent flow calculation to the Francis turbine interior flow, and has accurately forecast the interior flow of a Francis turbine under various operating modes, especially the vortex flow in draft tube and runner.

机译：在NS方程和大涡模拟（LES）模型方面，利用人体坐标系和四面体网格系统，通过SIMPLE算法求解，本文作者对弗朗西斯水轮机内部进行了3D非定常湍流计算。流量，并准确预测了各种运行模式下的弗朗西斯涡轮机的内部流量，尤其是引流管和流道中的涡流。

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《International Conference on Hydropower Technology amp; Key Equipment; ;》||P.476-482|共7页
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作者
Qinggui Zheng; Bin Wu; Yuanlin Long; Zhu Liang; Xiaobing Liu; Yongzhong Zeng;
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作者单位

Sichuan Electricpower Test Research Institute Chengdu 610039, China;

School of Energy Environment, Xihua University Chengdu 610039, China;

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原文格式 PDF
正文语种 eng
中图分类水利枢纽、水工建筑物;
关键词
Francis turbine; unsteady turbulent flow; LES model; numerical prediction;

机译：混流式水轮机；非定常湍流； LES模型；数值预测;

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1. Simulations of unsteady cavitating turbulent flow in a Francis turbine using the RANS method and the improved mixture model of two-phase flows [J] . Yulin Wu, Shuhong Liu, Hua-Shu Dou, Engineering with Computers . 2011,第3期

机译：使用RANS方法和改进的两相流混合模型模拟混流式水轮机中非定常空化湍流
2. Numerical Predictions of Three- Dimensional Unsteady Turbulent Film-Cooling for Trailing Edge of Gas-Turbine Blade Using Large Eddy Simulation [J] . Khalil Ahmed, Kayed Hatem, Hanafi Abdallah, Journal of Energy Resources Technology . 2019,第4期

机译：基于大涡模拟的燃气轮机叶片后缘三维非稳态湍流膜冷却数值预测
3. Numerical Investigations of the unsteady Flow in a high-head Francis Turbine using FOAM-extend [J] . Lenarcic Markus, Bauer Christian Wasserwirtschaft . 2015,第5appa期

机译：基于FOAM扩展的高水头混流式水轮机非定常流动的数值研究。
4. Instability Analysis of Draft Tube Swirling Flow by 3D Turbulent Unsteady Flow Simulation of a Model Francis Turbine [C] . Maojin Zhang, Shuhong Liu, Zhigang Zuo, International Symposium on Transport Phenomena and Dynamics of Rotating Machinery . 2012

机译：用模型涡轮机3D湍流非稳态流动模拟旋转管旋流的稳定性分析
5. Emissions predictions in turbulent reacting industrial gas turbine combustor flows using RANS and LES methods [D] . Jella, Sandeep Ebenezer 2008

机译：基于RANS和LES方法的工业燃气轮机燃烧器湍流反应中的排放预测
6. Unsteady computational fluid dynamics analysis of the hydrodynamic instabilities in a reversible Francis turbine used in a storage plant [O] . S. Mauro, R. Lanzafame, S. Brusca, 2019

机译：蓄水池中可逆混流式水轮机水动力不稳定性的非稳态计算流体动力学分析
7. Steady and unsteady numerical simulations of the flow in the Tokke Francis turbine model, at three operating conditions [O] . Stoessel, Lucien, Nilsson, Håkan 2015

机译：在三种运行条件下，Tokke Francis涡轮机模型中流动的稳态和非稳态数值模拟
8. Numerical Studies of Turbulent Free Surface Flows and Unsteady Propeller Flows [R] . Orszag, S. A., Borue, V., Staroselsky, I., 1995

机译：湍流自由面流动与非定常螺旋桨流动的数值研究

Numerical Prediction of Unsteady Turbulent Flow in Francis Turbine

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