转子发动机流场的测试和数值模拟  

Flow Field Test and Simulation of Rotary Engines

作　　者：范宝伟[1] 潘剑锋[1] 刘杨先[1] 卢青波[1] 肖曼[1] 薛宏 

机构地区：[1]江苏大学能源与动力工程学院,镇江212013 [2]美国加州州立工业大学,美国洛杉矶ca91768

出　　处：《工程热物理学报》2015年第8期1835-1840,共6页Journal of Engineering Thermophysics

基　　金：江苏省自然科学基金项目(No.BK20131253);江苏省高校优势学科建设工程资助项目;江苏省普通高校研究生科研创新计划项目(No.CXZZ13-0671)

摘　　要：为了研究端面进气转子发动机工作过程中缸内气流的运动规律,建立了可视化转子发动机实验台,利用PIV对发动机内部的流场进行了测试。实验结果显示缸体中心截面上存在逆时针涡流结构,测试区域内的气流整体上呈现沿逆时针方向的运动趋势。同时为了进一步解释实验所发现的现象,在FLUENT软件的基础上通过编程实现了三维网格运动并选择了合理的湍流模型,在与实验数据进行对比的基础上建立了可靠的三维动态模拟模型。通过实验和数值模拟相结合的方法研究获得了转子发动机的三维流动机理。In ordered to investigate the whole motion of the flow field in cylinder of side-ported rotary engines,a optical rotary engines test-bed was built,and PIV was used to test the flow field in engine.From experiment results,a counterclockwise vortex was detected in the central cross-section of cylinder block,and a counterclockwise movement tendency of airflow was also found in testing area.Meanwhile,in ordered to further explain experimental phenomena,a dynamic mesh and turbulent flow model has been developed and integrated into the Fluent simulation software through secondary development.And a reliability three-dimensional dynamic simulation model was acquired by comparing with experimental results.The three-dimensional flow mechanism of the rotary engine was studied by the experiments and numerical simulation.

关 键 词：端面进气 转子发动机 流场 PIV 三维动态模拟 

分 类 号：TK45[动力工程及工程热物理—动力机械及工程]