机械科学与技术2018，Vol.37Issue(2)：211-219,9.DOI:10.13433/j.cnki.1003-8728.2018.0208
双螺杆压缩机CFD分析新方法的研究与应用
Exploring and Applying a New Method of Analyzing CFD of Twin Screw Compressor
摘要
Abstract
For the case of the clearance between the male and female rotors and the clearance between the rotors and the cylinder is fewer than tens of microns actually,overcoming the shortcomings that it enlarged the model gap to the millimetre level in order to draw a high quality body grid when Fluent moving grid computing so as to avoid the phenomenon of negative volume grid in the process of calculation,a new method to replace the moving grid technology is explored,for the use of CFD calculation and analysis of twin screw compressor.With which,the clearance of the fluid domains for CFD simulation is reduced,and the gap between the model is processed to millimeter level or even zero,meanwhile,the simulation accuracy and reliability of the analysis results are effectively improved.For the new CFD simulation method,the surface mneshes of screw compressor fluid domains are generated in ANSA and the grids of the domains are generated with polyhedral meshes and trimmed meshes in STAR-CCM+,and the CFD simulation of screw compressors is carried out by Morphing in STAR-CCM+ solver,whose analysis results are consist with theory and the actual situation,and can be used to guide the screw rotor profiles design and optimization after analysis.关键词
螺杆压缩机/模型间隙/CFD/ANSA/STAR-CCM+/网格Key words
screw compressor/model gap/fluid domain/CFD/ANSA/STAR-CCM+/grid分类
机械制造引用本文复制引用
何雪明,施国江,武美萍,张荣,纪小刚..双螺杆压缩机CFD分析新方法的研究与应用[J].机械科学与技术,2018,37(2):211-219,9.基金项目
国家自然科学基金项目(51275210 （）
51105175)与六大人才高峰资助项目(2013-ZBZZ-016)资助 （2013-ZBZZ-016）
