Cavitation Flow Simulation and Structural Optimization of Hydraulic Spool Valve V-throttle Groove

doi:10.3969/j.issn.1000-1093.2015.02.023

Abstract

Abstract: The cavitation flow of hydraulic spool valve V-throttle groove is simulated analyzed using the hybrid mixture model based on Fluent software and standard κ-ε turbulence model. The position and size of cavitation in V-throttle groove are different no matter how the opening is small or large. The obvious effects of structural parameters W and D on the cavitation flow of the V-throttle groove are found through dynamic mesh simulation analysis. According to above V-throttle simulation result, the Kriging agent model is established using constant regression model by taking the parameters W and D as independent variables and the maximum value of the gas volume fraction of V-throttle groove as target value, and Gauss function as correlation function. The Kriging agent model for the small or large opening is solved by using improved genetic algorithm, and the optimal V-throttle structure can restrain the cavitation performance significantly.

Key words: fluid mechanics, hydraulic spool valve, cavitation flow, V-throttle, Kriging agent model

CLC Number:

TH137.51

SUN Ze-gang, XIAO Shi-de, WANG De-hua, XU Ming-heng. Cavitation Flow Simulation and Structural Optimization of Hydraulic Spool Valve V-throttle Groove[J]. Acta Armamentarii, 2015, 36(2): 345-354.

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