3D numerical simulation of transient processes in hydraulic turbines

3D numerical simulation of transient processes in hydraulic turbines
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DOI：
10.1088/1755-1315/12/1/012071
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发表时间：
2010-08
期刊：
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通讯作者：
S. Cherny;D. Chirkov;D. Bannikov;V. Lapin;V. Skorospelov;I. Eshkunova;A. Avdushenko
S. Cherny;D. Chirkov;D. Bannikov;V. Lapin;V. Skorospelov;I. Eshkunova;A. Avdushenko
中科院分区：
其他
文献类型：
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作者：
S. Cherny;D. Chirkov;D. Bannikov;V. Lapin;V. Skorospelov;I. Eshkunova;A. Avdushenko

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本文提出了一种三维水力涡轮机过渡工况流动的数值模拟方法。该方法是基于不可压缩RANS方程，转轮旋转方程和水击方程的耦合解决方案。设置适当的边界条件的问题被详细考虑。作为例子，给出了失控过程的仿真结果。分析了涡结构的演变及其对计算飞逸轨迹的影响。
An approach for numerical simulation of 3D hydraulic turbine flows in transient operating regimes is presented. The method is based on a coupled solution of incompressible RANS equations, runner rotation equation, and water hammer equations. The issue of setting appropriate boundary conditions is considered in detail. As an illustration, the simulation results for runaway process are presented. The evolution of vortex structure and its effect on computed runaway traces are analyzed.