内燃机工程2017，Vol.38Issue(1)：56-62,7.DOI:10.13949/j.cnki.nrjgc.2017.01.010
发动机环形冷却风扇结构与参数对气动性能影响的研究
Study on the Effect of Structure and Parameters of Engine Annular Cooling Fans on Aerodynamic Performances
摘要
Abstract
Based on the experimental testing and computational fluid dynamics analysis, a study on the effect of structure and parameters of an engine annular cooling fan on its aerodynamic performance was carried out.Firstly, the measurements of aerodynamic performances of an annular fan and an ordinary fan were conducted respectively, and the performance difference between the two type of fans was analyged.According to the test conditions of aerodynamic performance of the annular fan, a calculation model was developed and used to calculate the aerodynamic performance of the tested annular fan, which was verified by comparing the measured and the calculated data.By using the calculation model, the influence of circular ring structure and dimension parameters of annular fan on its aerodynamic performance was analyged.Results show that the fillet structure of annular fan's circular ring can improve the static pressure efficiency.The relative axial dimension parameters of the circular ring have great influence on the aerodynamic performance of the annular fan, and each annular fan has a blade exposure rate to make the static pressure efficiency achieve the best.However, the relative radial dimension parameters of the circular ring have little influence on the static pressure efficiency of the annular fan.关键词
内燃机/环形风扇/计算流体动力学/气动性能/风扇性能曲线Key words
IC engine/annular fan/CFD/aerodynamic performance/performance curve of a fan分类
能源科技引用本文复制引用
上官文斌,莫伟标,署恒涛,虞宁,贺频艳,竺菲菲..发动机环形冷却风扇结构与参数对气动性能影响的研究[J].内燃机工程,2017,38(1):56-62,7.基金项目
国家自然科学基金项目(11472107) （11472107）
广东省自然科学基金项目(2014A030313254) （2014A030313254）
