Numerical investigation of hydroacoustic pressure pulsations due to rotor-stator interaction in the Francis-99 turbine

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Abstract

The paper deals with the numerical simulation of the flow in the Francis-99 hydraulic turbine at three different problem formulations, namely, the application of the method of rotating coordinate system, sliding mesh model, and consideration of a compressible fluid. The pulsations intensity and pressure pulsation spectra obtained by numerical simulation and experimentally are compared. It is shown that the simulation of a problem considering compressible fluid, and that conducted by the sliding mesh method gives significantly greater pressure amplitudes. It is also shown that the precessing vortex core is a source of pressure waves in the entire turbine flow path.

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CITATION STYLE

APA

Platonov, D., Minakov, A., & Sentyabov, A. (2019). Numerical investigation of hydroacoustic pressure pulsations due to rotor-stator interaction in the Francis-99 turbine. In Journal of Physics: Conference Series (Vol. 1296). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/1296/1/012009

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