典型文献
Effects of chemical energy accommodation on nonequilibrium flow and heat transfer to a catalytic wall
文献摘要：
The accurate prediction of the aeroheating performance of hypersonic vehicles requires more detailed modeling of the catalysis process,rather than merely employing a catalytic coeffi-cient.In this paper,the theoretical modeling,as well as the direct simulation Monte Carlo method,is used to preliminarily study the incomplete chemical energy accommodation effects,that is,only a part of the potential energy released in the heterogenous recombination reaction is transferred to the surface,while the remaining is retained as the vibrational energy of the desorbed molecule.An integrated model is proposed to describe the contribution of each energy mode in the rarefied nonequilibrium heat and mass transfer process.Based on the model and several Damk?hler num-bers,an analytical formula is derived,and is also shown to compare well with the numerical results.On account of the incomplete accommodations of the chemical and vibrational energy on the wall,a variation up to 20％is observed in predicting the stagnation point heat flux under typical nonequilibrium flow conditions.This study could enrich our understanding of the nonequilibrium heat transfer phenomenon and also shows a potential practical value.
文献关键词：
中图分类号：
作者姓名：
Shunliang ZHANG;Zhihui WANG
作者机构：
School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Shunliang ZHANG;Zhihui WANG-.Effects of chemical energy accommodation on nonequilibrium flow and heat transfer to a catalytic wall)[J].中国航空学报（英文版）,2022(10):165-175
A类：
aeroheating,rarefied,accommodations
B类：
Effects,chemical,energy,nonequilibrium,flow,catalytic,wall,accurate,prediction,performance,hypersonic,vehicles,requires,more,detailed,modeling,catalysis,process,rather,than,merely,employing,coeffi,cient,In,this,paper,theoretical,well,direct,simulation,Monte,Carlo,method,used,preliminarily,study,incomplete,effects,that,only,part,potential,released,heterogenous,recombination,reaction,transferred,surface,while,remaining,retained,vibrational,desorbed,molecule,An,integrated,proposed,describe,contribution,each,mass,Based,several,Damk,hler,bers,analytical,formula,derived,also,shown,compare,numerical,results,On,account,variation,up,observed,predicting,stagnation,point,flux,typical,conditions,This,could,enrich,our,understanding,phenomenon,shows,practical,value
AB值：
0.568435
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