微孔推进剂稳态对流燃烧模型

目的发展一种与微孔参数相关的微孔推进剂（ＭＰＰ）的稳态对流燃烧物理和数学模型。方法分别用ＷＸＴ－８８型图像分析仪和大容量密闭爆发器测定微孔参数和对流燃烧特性。结果＊提出了包括微孔和颗粒燃烧的统计物理模型；获得了稳态对流燃速方程：＊结论这个模型首次将对流燃速与微孔参数相关联，计算的对流燃速值与试验结果较好地吻合。＊该模型还可预估微孔参数、基础质量燃速、ＭＰＰ密度及燃烧室压力对ＭＰＰ燃烧特性的影响。

A Model of Steady-State Convective Combustion of Micropore Propellants

Aim To develop a physical and mathematical model related to micropore para- meters of steady-state convective combustion of micropore propellants(MPP). Methods The micropore parameters were measured by WXT-88 mage analysis apparatus and the convective combustion characteristic of MPP was measured by a large volume closed bomb, respectively. Rasults Statistical physical model of burning in the micropore and granular burning were developed. The burning rate equation of steady-state convective combustion of MPP was obtained. Conclusions This model correlates the convective burning rate with micropores para- meters for the first time,and the calculating values of convective burning rate are in agreement with test results.The model also can be used to estimate the effects of microporous parame- ters, basic mass burning rate, MPP density and pressure in combustion chamber on the convective combustion characteristics of MPP.