排灌机械工程学报2025，Vol.43Issue(3)：231-237,7.DOI:10.3969/j.issn.1674-8530.23.0146
面向CFD计算的离心泵蜗壳模型优化方法
Optimization method of centrifugal pump volute model for CFD calculation
摘要
Abstract
During the process of volute 3D modeling,a large number of complex geometric operations are carried out because of the complex structure of the centrifugal pump volute,which leads to the presence of fragment surfaces on the CAD model surface,making it difficult to perform grid generation in the subsequent CFD calculations process.To address this issue,the volute hydraulic diagram and the three-dimensional model of the volute were analyzed.Considering the features of fragment surface in volute model,a definition for fragment surface was proposed.Subsequently,the recognition of fragment surface was achieved by constructing an attribute adjacency graph of the volute CAD model and map-ping the topological and geometric information.Finally,an optimization method based on geometric surfaces was employed to address the prevalent types of curved surfaces in the volute model.The geo-metric parameters,appropriate base surfaces were constructed,and these base surfaces were utilized to fit the surfaces containing fragment surface,thereby accomplishing the repair of the fragment faces.The volute optimization algorithm was implemented based on the Open CASCADE platform,and the cor-rectness and effectiveness of the method were demonstrated through practical examples of different vo-lutes.The research findings can provide good technical support for the integrated design of centrifugal pump using CAD/CFD software.关键词
离心泵/蜗壳/CAD模型/碎面修复/碎面识别Key words
centrifugal pump/volute/CAD model/fragment surface repair/fragment surface identification分类
农业工程引用本文复制引用
谈明高,蒋振清,刘厚林,吴贤芳,邵晨..面向CFD计算的离心泵蜗壳模型优化方法[J].排灌机械工程学报,2025,43(3):231-237,7.基金项目
国家自然科学基金资助项目(52179084,52379090) （52179084,52379090）
