Author:
Fang T,Huang X B,Yu K,Guo Q
Abstract
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.
Reference23 articles.
1. Experimental Investigation of Flow Patterns in a Pump Intake with Different CWL (Critical Water Level) and Back-Wall Clearance;Guo;Journal of Thermal Science,2021
2. Occurrence Condition of Air Entrainment into a Vertical Wet-Pit Pump;Hirata;Journal of Fluid Science and Technology,2013
3. Research on optimization method of pump sump parameters based on response surface model;Zi;Journal of Hydraulic Engineering,2017
4. Air-entrainment in hydraulic intakes with a vertical pipe: The mechanism and influence of pipe offset;Huang;International Journal of Multiphase Flow,2022
5. Air-entrained vortex in open intake: Time–frequency analysis and the interaction with subsurface vortices;Huang;Physics of Fluid,2022