Numerical Simulation of Direct Action Liquid Rocket Engines Hydromechanical Flow Controllers
Direct Action Flow Controllers include two main elements: a throttle that provides the required flow changes during the engine operation,and a spool,stabilizing the pressure drop across the throttle.A mathematical model is required to determine the static and dynamic characteristics for a specified designs parameters.Basis on the mathematical models,were performed numerical factor experiments with constructions of regression models.According to presented mathematical models were performed numerical factor experiments.Presented liquid flow and pressure drop characteristics that depend from the regulator structural factors,when statism coefficient equal to null.The results of mathematical experiments allowed to build regression models that characterizing the degree of the influence of external factors on the design process and the onset of negative droop.Results show what influence has diameter of the spool,the distance between the throttle and the spool,offset of cone throttle,the diameter of the spool,the angle of cone throttle,length of the cone throttle on the flow regulator.The results can be used as guidelines for another flow regulators design.
flow controller flow regulator liquid rocket engines dynamic characteristic static characteristic
Iana Bakhmet Zhang Lihui
School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing,100191,China
国际会议
2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)
上海
英文
1-6
2014-09-24（万方平台首次上网日期，不代表论文的发表时间）