火炸药学报2016，Vol.39Issue(3)：84-88,5.DOI:10.14077/j.issn.1007-7812.2016.03.017
HAN基液体推进剂喷雾场液滴尺寸分布的简化模型
Simplified Model on Droplet Size Distribution in the Spray Field of HAN-based Liquid Propellant
摘要
Abstract
To establish the simplified model of the droplet size distribution in the spray field of HAN‐based liquid propel‐lant ,based on maximum entropy principle ,the droplet size distribution function was derived by using Lagrange method un‐der the conditions of mass conservation and that the sum of probability is the fixed value ,this function was used to predict the droplet size distribution of HAN‐based liquid propellant simulation medium spray field .A phase Doppler particle dy‐namic analyzer (PDA) was used to measure the droplet size distribution in the spray field of impinging nozzle with HAN‐based liquid propellant simulation medium under the injection pressure of 1 .8MPa to 2 .6MPa .The differential number dis‐tribution was revised by using least squares method to optimize the value of q in Nukiyama‐Tanasawa distribution function formula ,the function relationship between q and injection pressure p obtained by fitting was q(p)= -0 .344 p2 +1 .525 p+1 .268 .The results show that the changing trend of the calculated droplet size differential number distribution agrees well with experimental data of the HAN‐based liquid propellant ,indicating that the droplet size distribution model established is reasonable .关键词
HAN基液体推进剂/最大熵原理/液滴尺寸分布/对撞式喷嘴/喷射压力/最小二乘法Key words
HAN-based liquid propellant/maximum entropy principle/droplet size distribution/impinging nozzle/in-jection pressure/least squares method分类
军事科技引用本文复制引用
王婕,余永刚,刘焜..HAN基液体推进剂喷雾场液滴尺寸分布的简化模型[J].火炸药学报,2016,39(3):84-88,5.基金项目
教育部博士点基金资助项目 （）
