加力燃烧室典型结构件流阻特性研究  

Study on Flow Resistance Characteristics of Typical Structure Parts of Afterburner

作　　者：朱赟 张哲衡 解亮 王靖宇 吴云 ZHU Yun;ZHANG Zhe-heng;XIE Liang;WANG Jing-yu;WU Yun(AECC Shenyang Engine Research Institute,Shenyang 110015,China)

机构地区：[1]中国航发沈阳发动机研究所

出　　处：《航空发动机》2019年第6期46-50,共5页Aeroengine

基　　金：航空动力基础研究项目资助

摘　　要：为研究发动机加力燃烧室典型结构件在空气流场中的流阻特性,对不同种类试验件进行试验,分析了不同速度系数下的流场压力分布,获得了加力燃烧室典型杆件流阻系数的变化范围和速度系数对流场均匀性的影响规律。为减小杆件产生的流阻损失,优先选用单杆、光滑、堵塞比小的杆件。利用Fluent软件对流体流过试验件的过程进行数值模拟,结果表明:数值计算结果与试验结果得到的流阻系数相对误差在2%以内。In order to study the flow resistance characteristics of typical structural parts of engine afterburner in air flow field,different kinds of test pieces were tested.The flow field pressure distribution under different velocity coefficients was analyzed.The variation range of flow resistance coefficient of typical rod in afterburner and the influence of velocity coefficient on the uniformity of flow field were obtained.In order to reduce the flow resistance loss caused by the rod,a single and smooth rod with smaller blockage ratio should be preferred.Fluent software was used to simulate the process of fluid flowing through the test piece.The results show that the relative error between the numerical results and the test results is within 2%.

关 键 词：流阻特性 流阻系数 雷诺数 堵塞比 加力燃烧室 航空发动机 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]