Pressure Distribution of Pressure and Non-Pressure Sections of a Hydropower Station Spillway Tunnel

Hong Qing Zhang; Wei Kai Tan; Yi Long Lou; Qian Zhao

doi:10.4028/www.scientific.net/AMM.716-717.244

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 716-717Pressure Distribution of Pressure and Non-Pressure...

Pressure Distribution of Pressure and Non-Pressure Sections of a Hydropower Station Spillway Tunnel

Abstract:

In this paper, we used VOF combining turbulent model to simulate pressure distribution of pressure section and non-pressure section in a hydropower station spillway tunnel with high head and large discharge in China. The results show that in the pressure section of the spillway tunnel, the values of pressure of emergency gate slot, working gate and the pressing slope, getting from physical model experiment and numerical simulation, are all positive. While in the non-pressure section, the No.1、2、3 aerators of the sudden enlargement and sudden drop occur the maximum pressure. And at the back of the No.1、2、3 aerators, where the values of pressure are negative, forms cavity. The conclusions obtained can improve the design of spillway tunnel.

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Periodical:

Applied Mechanics and Materials (Volumes 716-717)

Pages:

244-247

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.716-717.244

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Online since:

December 2014

Authors:

Hong Qing Zhang*, Wei Kai Tan, Yi Long Lou, Qian Zhao

Keywords:

Aerated Flow Depth, k - ε Turbulent Model, Spillway Tunnel, VOF Model

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* - Corresponding Author

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