| 摘要: |
| 电弧加热器可以提供马赫数10以上连续式风洞运行总温、总压的参数要求，将其用于气动力试验风洞加热器，需要对其流场品质进行优化。通过改进电弧加热器的结构和配置冷气混合室及稳定段，改善了喷管出口参数在空间分布的均匀性和时间上的稳定性，并减缓了流场气流的旋转和脉动，提高了试验参数的重复性。经初步流场测试及天平测力可行性研究表明:流场核心区的总温及皮托压力偏差小于平均值的2%，试验测力数据与常规高超声速风洞接近。 |
| 关键词: 电弧加热器 流场 均匀性 气动力 风洞试验中图分类号:V439.4文献标识码:A文章编号:1001-4055(2015)12-1788-07DOI:10.13675/j.cnki.tjjs.2015.12.005 |
| DOI： |
| 分类号:V439.4 |
| 基金项目: |
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| APreliminaryResearchofOptimizationforArcHeatedFlowQuality |
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LONGYong-sheng,YANGYan-guang,CHENAi-guo,MAOChun-man,LIXu-guo,YUANJie
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(HypervelocityAerodynamicsInstituteofChinaAerodynamicsResearchandDevelopmentCenter，Mianyang621000，China)
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| Abstract: |
| ThearcheatercanprovidehightemperatureandpressuretestflowfieldforMa>10continuouswindtunnel.Thequalityofflowfieldwouldbeoptimizedifarcheaterbeusedintheaerodynamicforcetest.Thedistributionandstabilityoftestparametersatnozzleexithavebeenimprovedbymodifyingarcheaterstructure，addingcoolandhotairmixingchamberandstabilizationsection.Meanwhile，thevortexandvibrationofgashavebeenweakened，whichincreasestestrepeatability.ThepreliminarycalibrationandaerodynamicforcetestofflowindicatethatdeviationsofthePitotpressureandtotaltemperatureinflowcorearelessthan2%ofaver.agevalues.Themeasuredforceisapproachedwiththatofconventionalhypersonicwindtunnel. |
| Key words: Archeater Flowfield Uniformity Aerodynamicforce Windtunneltest |
