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PERIODIC BOUNDARY CONDITION IN SIMULATION OF TURBULENT FLOW 被引量:4

PERIODIC BOUNDARY CONDITION IN SIMULATION OF TURBULENT FLOW
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摘要 The simulations of the three-dimensional turbulent flows through hydraulic turbine components[1] were conducted based on the standard k-Ε turbulent model with body-fitted coordinates and staggering grid system. The SIMPLEC algorithm was adopted in the numerical procedure. A new method to treat the periodic boundary condition was used. The calculated results of the new method were compared with those of traditional ones. These results indicate that the new method can give much better results, and can be used in simulating flow through rotational impellers. The presented method can be combined with alternative turbulent model or employed in large eddy simulation. The simulations of the three-dimensional turbulent flows through hydraulic turbine components[1] were conducted based on the standard k-Ε turbulent model with body-fitted coordinates and staggering grid system. The SIMPLEC algorithm was adopted in the numerical procedure. A new method to treat the periodic boundary condition was used. The calculated results of the new method were compared with those of traditional ones. These results indicate that the new method can give much better results, and can be used in simulating flow through rotational impellers. The presented method can be combined with alternative turbulent model or employed in large eddy simulation.
出处 《Journal of Hydrodynamics》 SCIE EI CSCD 2002年第3期111-116,共6页 水动力学研究与进展B辑(英文版)
关键词 Computer simulation Hydraulic turbines IMPELLERS Three dimensional Time varying systems Computer simulation Hydraulic turbines Impellers Three dimensional Time varying systems
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参考文献1

  • 1Wu Yulin,Guilbaud M.1996: Three-Dimensional Turbulent Flow Simulation through a Hydraulic Turbine Draft Tube, Proc[].of ISFMFE Beijing.

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