Numerical Simulation of Hydraulic Shape Optimization for Bifurcated Pipe of Hydropower Station

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Abstract:

Steel bifurcated pipe is one important part of the water diversion buildings in a hydropower station. And its hydraulic characteristics are crucial to reduce the head loss of the bifurcated section. The numerical simulation was carried out with spherical trifurcate branch pipe, shell type trifurcate branch pipe without deflecting plates and shell type trifurcate branch pipe with deflecting plates under a serious of operating conditions based on a case study. After this, the flow conditions and the head losses in the bifurcated sections were analyzed. The shell type trifurcate branch pipe with deflecting plates had the most advantageous hydraulic characteristics of the three schemes. The shell type and the deflecting plates improved the flow condition effectively. The scheme could improve the flow condition and reduce the head loss of the bifurcation section effectively. The results might provide some references to the bifurcated pipe design and operation.

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3507-3511

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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