In order to study the effect of crude oil viscosity on the optimization parameters of the ANSYS simulation model for hy-drodynamic noise of oil transfer pumps,and to reduce the simulation errors caused by the model parameters.In this paper,the ZA150-4400 oil transfer pump is taken as the research object,based on ANSYS simulation platform,the RNG k-εmodel is used to study the static pressure distribution characteristics of crude oil hydrodynamic noise,and the Smagorinsky-Lilly model in LES is used to study the dynamic distribution characteristics of crude oil hydrodynamic noise.According to the Cμ-parameter 0.0845 of water medi-um,a linear fitting relationship between crude oil viscosity μe and the modified parameter Cμ is constructed through a large number of simulation experiments of Cμ-parameter optimization under different crude oil viscosities μe.The results of simulation experiments show that the optimal parameter settings for different crude oil viscosities μe corresponding to Cμ have a maximum deviation of 0.61 Hz in the shaft frequency and 3.05 Hz in the impeller blade passing frequency in the dynamic characteristics simulation.
关键词
输油泵流体动力噪声/原油粘度/ANSYS仿真/RNG/k-ε模型/参数优化
Key words
Oil transfer pump hydrodynamic noise/crude oil viscosity/ANSYS simulation/RNG k-εmodel/parameter optimization
维普
万方数据