基于遗传算法的离心泵叶片水力性能优化

建立了一种基于遗传算法的离心泵叶片型线水力性能优化方法。区别于传统优化方法,此方法通过CFD技术求解离心泵叶片的水力性能,以离心泵水力效率及理论扬程作为优化目标进行多目标优化。包含3个主要步骤:基于蒙面法和三次B样条曲线的三维叶片型线参数化;基于NUMECA商用软件的计算域网格划分及流场求解;基于多目标遗传算法的全局优化。应用此方法对某单级单吸蜗壳离心泵水力性能进行了多目标优化,优化结果表明离心泵水力效率及理论扬程分别提高了0.35%和0.944%。

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