不锈钢冲压潜水井泵的数值计算与试验验证

为了提高数值模拟的精度及验证Fluent软件对冲压潜水井泵计算的可行性,结合冲压泵的工艺特点,针对4SP8不锈钢冲压潜水井泵进行了基于Fluent软件的数值模拟.考虑用不同的网格数、不同的收敛精度、不同的粗糙度、不同的湍流模型及不同的算法,对不同级数冲压潜水井泵模型作了数值模拟,从而找出最适合不锈钢冲压潜水井泵的数值模拟设置方法,并将性能预测与样机试验的结果进行对比.结果表明:采用网格尺寸大小为1.4 mm,收敛精度为10 -5,粗糙度为0,标准k-ε湍流模型,SIMPLEC算法,对两级不锈钢潜水井泵的全流场进行数值模拟最为合适；模拟值与试验值有较小的差别,但趋势基本相同.该研究对不锈钢冲压潜水井泵的数值模拟具有一定的参考价值.

Numerical calculation and experimental verification of stainless steel stamping submersible well pump

In order to improve numerical calculation accuracy and verify Fluent software feasibility of stamping well pump.The 4SP8 stamping submersible well pump was numerically simulated based on Fluent software and technological features of stamping pump.Numerical calculation of different stages of stamping well pump model was carried out for different grid number,convergence precision,roughness,turbulence models and algorithms.The most suitable set method of numerical simulation for stainless steel stamping submersible well pump was achieved to compare prediction performance with experimental results.The results show that standard k-ε turbulence model and SIMPLEC algorithm are most appropriate to make numerical calculation for the whole flow field of two-stage stainless steel well pump at the conditions with grid size of 1.4 mm,convergence precision of 10-5 and roughness of 0 mm.The difference between simulation data and experimental data is small with almost the same trend.The study is instructive to the numerical simulation of stainless steel stamping submersible well pump.