固体火箭技术
固體火箭技術
고체화전기술
JOURNAL OF SOLID ROCKET TECHNOLOGY
2014年
3期
320-323
,共4页
严聪%张志峰%马岑睿%张成涛
嚴聰%張誌峰%馬岑睿%張成濤
엄총%장지봉%마잠예%장성도
二次进气固冲发动机%补燃室%粒子沉积%数值模拟
二次進氣固遲髮動機%補燃室%粒子沉積%數值模擬
이차진기고충발동궤%보연실%입자침적%수치모의
solid rocket ramjet with secondary air inlets%afterburning chamber%particle deposition%numerical simulation
基于随机颗粒轨道模型和颗粒部分沉积模型,对二次进气固冲发动机补燃室壁面的粒子沉积进行了探索研究,讨论了空燃比、进气间距及流量分配比等参数对沉积的影响。结果表明,随空燃比增大,沉积区域有一个明显的前移,空燃比对沉积的影响分为两个阶段;进气间距对沉积的影响较复杂;流量分配比增大,沉积区域变化不大,但沉积总量增加。
基于隨機顆粒軌道模型和顆粒部分沉積模型,對二次進氣固遲髮動機補燃室壁麵的粒子沉積進行瞭探索研究,討論瞭空燃比、進氣間距及流量分配比等參數對沉積的影響。結果錶明,隨空燃比增大,沉積區域有一箇明顯的前移,空燃比對沉積的影響分為兩箇階段;進氣間距對沉積的影響較複雜;流量分配比增大,沉積區域變化不大,但沉積總量增加。
기우수궤과립궤도모형화과립부분침적모형,대이차진기고충발동궤보연실벽면적입자침적진행료탐색연구,토론료공연비、진기간거급류량분배비등삼수대침적적영향。결과표명,수공연비증대,침적구역유일개명현적전이,공연비대침적적영향분위량개계단;진기간거대침적적영향교복잡;류량분배비증대,침적구역변화불대,단침적총량증가。
Particle deposition in solid rocket ramjet chamber with secondary air inlets was numerically simulated based on ran-dom particle stochastic trajectory and particle partial deposition model. The effects of several parameters on deposition were dis-cussed,such as air-to-fuel ratio,inlet interval,flow distribution ratio etc.The results show that there is an obvious forward move with accretion of air-to-fuel rate,leading to two sections concerning the effects of air-to-fuel ratio.The effects of inlet interval on deposition are complex.The deposition regions change little but the deposition gross increases with the accretion of flow distribution ratio.