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1 个结果
  • 简介:Inmanyengineeringpractices,frequentlyanimpulsivewaveisaconsequenceofdischargeofashockwavefromtheexitofatubeleadingtoanannoyingnoiselikasonicboom.Theimpulsivenoisehasoftenbeenamajorfactortolimittheperformanceofflowdevicesaswellastoaffecthazardousinfluencesonhumanbeing.Thecorrentpaperdescribesanewcontrolmethodforthereductionofimpulsivewave.Anexperimentusingasimpleshocktubewascarriedouttoexaminetheeffectofacavity/helicalvanesystemontheimpulsivewavestrength.Theresultingimpulsivewavewasinfluencedbythedetailedconfigurationofthehelicalvaneinsidethecavitywhichislocatedatthevicinityoftheexitofatube.Theeffectofthehelicalvanewascomparedwithnohelicalvaneteststoensurevalidationofthiskindofcontrolstrategy,Theresultsshowedthatthestrengthoftheimpulsivewavecouldbesignificantlyreducedbythecurrentpassivecontrolusingthecavity/helicalvanesystem.

  • 标签: 不稳定流 无源控制 可压缩流体