Multi-objective optimization of intake parameters based on response surface methodology

Abstract

The open intake is an important hydraulic building in pumping stations. This paper adopts the simple coupled level-set and volume of fluid and bifurcation model for numerical simulation. Based on the response surface methodology (RSM), multi-objective optimization of the structural parameters of the open intake is carried out. Considering the air-entrained vortex and irreversible energy loss of the intake pool, the response surface optimization model of the intake is established. The results verify the accuracy of this model. It is shown that the influence of floor clearance and back-wall clearance on the objective function is significant; After gradient optimization calculation, the optimal parameter combination is C = 0.4172D and B = 0.7208D. This optimization scheme suppressed the air-entrained vortex and other adverse flow patterns. And these results provide relevant theoretical references for the future design of intake.