| 高忠信,周先进,张世雄,陆力.水轮机转轮固液两相三维紊流计算及磨损预估[J].水利学报,2002,33(9):0037-0043 |
| 水轮机转轮固液两相三维紊流计算及磨损预估 |
| Numerical prediction on silt wearing of turbine runner by means of two-phase turbulent flow simulation |
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| DOI： |
| 中文关键词: 水轮机 固液两相紊流 数值模拟 |
| 英文关键词: turbine runner solid particle-fluid two-phase turbulent flow silt wearing curvilinear coordinate system |
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| 摘要点击次数: 1796 |
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| 中文摘要: |
| 本文在两流体模型的基础上，使用贴体坐标的有限体积法，利用有科氏力修正的κ-ε-Ap两相流紊流模型建立了水轮机转轮内部的三维泥沙固液两相紊流计算模型。模型中求解了考虑压力对固粒相影响的时均Reynolds动量方程，并利用泥沙相的速度和浓度分布，数值计算了转轮的泥沙磨损。为了验证模型的可行性，用该模型计算了刘家峡HL001-25模型水轮机转轮内部的三维泥沙固液两相紊流流动，数值预估了转轮的泥沙磨损并与磨损试验结果进行了比较。 |
| 英文摘要: |
| A 3-D two-phase turbulent flow model in curvilinear coordinate system is proposed to predict the silt wearing of turbine runner.Finite volume technique is applied and the Coriolis force is taken into account.In the model the Reynolds momentum equation considering the effect of pressure on solid particle is calculated.The velocity distribution and concentration distribution of the solid particles are used to calculate the wearing of the runner.The wearing of the HL001-25 runner model predicted by this method is in good agreement with the model test. |
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