超燃燃烧室一维释热分布模型研究

推进技术 ›› 2015, Vol. 36 ›› Issue (12): 1852-1858.

超燃燃烧室一维释热分布模型研究

张雁翔,王振国,孙明波,杨揖心,汪洪波

国防科技大学高超声速冲压发动机技术重点实验室，湖南长沙410073,国防科技大学高超声速冲压发动机技术重点实验室，湖南长沙410073,国防科技大学高超声速冲压发动机技术重点实验室，湖南长沙410073,国防科技大学高超声速冲压发动机技术重点实验室，湖南长沙410073,国防科技大学高超声速冲压发动机技术重点实验室，湖南长沙410073

发布日期:2021-08-15
作者简介:张雁翔(1991—)，男，硕士生，研究领域为高超声速推进技术。

AnInvestigationonOne-DimensionalModelofHeatRelease

ScienceandTechnologyonScramjetLaboratory，NationalUniversityofDefenseTechnology，Changsha410073，China,ScienceandTechnologyonScramjetLaboratory，NationalUniversityofDefenseTechnology，Changsha410073，China,ScienceandTechnologyonScramjetLaboratory，NationalUniversityofDefenseTechnology，Changsha410073，China,ScienceandTechnologyonScramjetLaboratory，NationalUniversityofDefenseTechnology，Changsha410073，China and ScienceandTechnologyonScramjetLaboratory，NationalUniversityofDefenseTechnology，Changsha410073，China

Published:2021-08-15

摘要/Abstract

摘要： 为了预估超燃冲压发动机燃烧室内的释热分布，针对带凹腔稳焰器的燃烧室，总结了射流混合情况、来流温度和当量比对释热分布影响的实验规律，提出了主燃烧区的概念和分段线性拟合的建模思路。模型被分为隔离段、横向射流、燃烧室释热分布、主燃烧区反压四个部分。通过压力前推，进行代数的迭代计算，能够快速得到燃烧室释热分布的一维模型。利用实验图像和仿真计算数据，对模型得到的释热分布与燃烧效率进行了验证，模型可适用于隔离段来流2.1马赫以上的工况，且模型结果与仿真结果相关系数达到了0.9以上。

关键词: 超燃冲压发动机；燃烧室；释热分布；凹腔稳焰器；迭代计算；一维模型中图分类号:V235.21文献标识码:A文章编号:1001-4055(2015)12-1852-07DOI:10.13675/j.cnki.tjjs.2015.12.014

Abstract: Inordertopredicttheheatreleasedistributioninthecombustorofscramjetengine，focusingonthecombustorwithacavityflameholder，theeffectsofmixingcondition，inflowtemperature，andequivalenceratioontheheatreleasedistributionwerestudied.Theconceptofmaincombustionzoneandpiecewiselinearfit.tingmodelingmethodwereintroduced.Themodelwasdividedintoisolator，transversefueljetflow，combustorheatreleasedistribution，andmaincombustionzonepressure.Throughtheforwardcalculationofpressureandal.gebraiciterativecalculation，theone-dimensionalmodeloftheheatreleasedistributioninthecombustorcanbequicklyobtained.Someofthegraphswerecomparedwithexperimentimagesinordertoverifyhowthemodelfitstheactualprocess.ThemodelissuitablefortheconditionwhentheMachnumberofisolatorinflowisabove2.1，andthecorrelationcoefficientbetweentheresultsfromthemodelandcomputersimulationreachedmorethan0.9.

Key words: Scramjetengine；Combustor；Heatreleasedistribution；Cavityflameholder；Iterativecal.culation；One-dimensionalmodel

张雁翔,王振国,孙明波,杨揖心,汪洪波. 超燃燃烧室一维释热分布模型研究[J]. 推进技术, 2015, 36(12): 1852-1858.

ZHANGYan-xiang,WANGZhen-guo,SUNMing-bo,YANGYi-xin,WANGHong-bo. AnInvestigationonOne-DimensionalModelofHeatRelease[J]. Journal of Propulsion Technology, 2015, 36(12): 1852-1858.

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