典型文献
Theories and methods for designing hypersonic high-enthalpy flow nozzles
文献摘要：
Hypersonic high-enthalpy wind tunnels have been a challenge to ground tests in aero-space research area for decades and its test flow uniformity is one of the most important parameters for evaluating wind tunnel performances.Regarding to the performance requirement,theories and methods for designing hypersonic flow nozzles at high enthalpy conditions are quite difficult,but very interesting topics,especially when air molecule dissociations take place in wind tunnel test gas reservoirs.In this paper,fundamental theories and important methods for nozzle designs are briefly reviewed with the emphasis on two-dimensional axisymmetric nozzles for hypersonic high-enthalpy wind tunnels,including the Method of Characteristics(MOC),the graphic design method,the Sivells method,the theory for boundary correction,and the CFD-based design optimization methods.These theories and methods had been proposed based on several physical issues,respec-tively,which play important roles in nozzle flow expansion processes.These issues cover the expan-sion wave generation and reflection,the boundary layer development,the real gas effect of hypersonic high-enthalpy flows.Difficulties arising from applications of these methods in hyper-sonic high-enthalpy nozzle design are discussed in detail and the state of the art of the nozzle design technologies that have reached for decades is summarized with some brief comments.Finally,the prospect for the hypersonic nozzle design methods,and its numerical and experimental verifications are provided with from authors'viewpoint for readers'reference.
文献关键词：
中图分类号：
作者姓名：
Yunpeng WANG;Zonglin JIANG
作者机构：
State Key Laboratory of High Temperature Gas Dynamics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China;School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Yunpeng WANG;Zonglin JIANG-.Theories and methods for designing hypersonic high-enthalpy flow nozzles)[J].中国航空学报（英文版）,2022(01):318-339
A类：
dissociations,Sivells
B类：
Theories,methods,designing,hypersonic,high,enthalpy,nozzles,Hypersonic,wind,tunnels,have,been,challenge,ground,tests,aero,space,research,area,decades,its,uniformity,one,most,important,parameters,evaluating,performances,Regarding,requirement,theories,conditions,quite,difficult,but,very,interesting,topics,especially,when,air,molecule,take,place,gas,reservoirs,In,this,paper,fundamental,designs,briefly,reviewed,emphasis,two,dimensional,axisymmetric,including,Method,Characteristics,MOC,graphic,theory,boundary,correction,CFD,optimization,These,had,proposed,several,physical,issues,respec,tively,which,play,roles,expansion,processes,cover,wave,generation,reflection,layer,development,real,effect,flows,Difficulties,arising,from,applications,these,discussed,detail,state,art,technologies,that,reached,summarized,some,comments,Finally,prospect,numerical,experimental,verifications,provided,authors,viewpoint,readers,reference
AB值：
0.524199
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