变推力发动机仿真计算分析  

Computational analysis of a variable-thrust engine

作　　者：唐虎[1] 张涛[1] 刘昌波[1] 

机构地区：[1]西安航天动力研究所,陕西西安710100

出　　处：《火箭推进》2008年第5期1-4,共4页Journal of Rocket Propulsion

摘　　要：分析了变推力发动机采用的双调模式,用流量调节器控制推进剂流量,流量定位针栓式喷注器控制喷注压降,保证喷注速度基本不变。根据发动机系统特点建立了主要组件的数学模型,并根据模型进行了仿真计算,最后对发动机前管路流阻影响进行了分析。A variable-thrust engine uses a regulator to control the flowrate and a flowrate posi- tioned pintle injector to control the injection pressure drop, thus to maintain a stable injection velocity. In this paper, based on the characteritics of the engine system, the main components models are established and simulated. At the end, the influence of flow resistance in the pipeline upstream the engine on the engine performance is analyzed.

关 键 词：变推力发动机 喷注器 燃烧室 

分 类 号：V434[航空宇航科学与技术—航空宇航推进理论与工程]