哈尔滨工程大学学报2012，Vol.33Issue(10)：1223-1227,5.DOI:10.3969/j.issn.1006-7043.201111025
混流式喷水推进泵三元设计及数值试验
Three-dimensional design and numerical experiment of mixed-flow waterjet with CFD
摘要
Abstract
The study explored solving a rapid and exact design method of mixed-flow waterjet f utilizing the three-dimensional inverse design equations and three-dimensional viscid flow iteratively. First, the waterjet impeller was designed by using a three-dimensional design method, which decomposes the three-dimensional rotational flow inside the impeller into a circumferential averaged mean flow and periodic flow respectively. The circumferential mean flow governing equations are derived from the 3-D Euler equations using circumferential averaging methods and the circumferential periodic flow e-quations are obtained from Clebsch formulation- The effect of blades on flow field is replaced by the vortex on the central plane of the blades, and the blade shape is determined by satisfying the iterative flow boundary condition. Lastly, the performance of the mixed-flow waterjet was calculated using RANS simulation which considered fluid viscosity, indicating the pump had a high efficiency rating and good captations performance with the efficiency of 90.5% on the design point; under the designed rotation rate the waterjet NPSHr is far less than the designed index, the wateqet has better hydraulic performance in a wider flow range, proving the accuracy and effectiveness of the design.关键词
喷水推进/混流泵/三元设计/数值模拟Key words
waterjet/ mixed-flow pump/ three-dimensional design/ numerical simulation分类
交通工程引用本文复制引用
靳栓宝,王永生,丁江明,苏永生..混流式喷水推进泵三元设计及数值试验[J].哈尔滨工程大学学报,2012,33(10):1223-1227,5.基金项目
国家自然科学基金资助项目(51009142) （51009142）
