DRAFT-TUBE INLET VELOCITY PROFILE OPTIMIZATION

摘要：

This paper describes a methodology to formulate and solve an inlet velocity profile optimization problem to minimize hydraulic turbine draft-tube losses.The proposed approach is based on the Mesh Adaptive Direct Search(MADS) optimization algorithm coupled to an incompressible RANS CFD simulation,using OpenFOAM and the standard k-(∈) turbulence model.Sample results for the Porjus U9 draft-tube are presented.The results show that the energy loss factor was reduced by more than 60％in optimization cases compared with the best efficiency point found using a solid body rotation test.These optimization results can be used as a design reference for turbine designers working on rehabilitation projects of hydraulic power plants.

关键词： Hydraulic turbine Draft-tube CFD Optimization Mesh Adaptive Direct Search

作者: Xin Lin Li Fra(n)cois Guibault Christophe Devals

作者单位: Mech.Eng.Department,(E)cole Polytechnique de Montr(e)al Comput.Eng.Department,(E)cole Polytechnique de Montr(e)al

会议类型: 国际会议

会议名称: The 13th OpenFOAM Workshop(第13届OpenFOAM国际研讨会)

会议地点: 上海

会议语种:英文

页码: 389-392

在线出版日期: 2018-06-24（万方平台首次上网日期，不代表论文的发表时间）