资源描述：
《金属风暴武器膛口流场仿真分析》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、金属风暴武器膛口流场仿真分析摘要“金属风暴”武器系统是采用多身管串并联弹药同步或不同步发射的武器系统。多身管发射时会在膛口前形成复杂膛口流场，该流场会对各身管发射出的弹丸产生非对称性的扰动，从而影响武器系统的射击精度。本论文利用二维定向射流和动网格的的相关方式对“金属风暴”武器不同发射方式下膛口冲击波的形成、发展及衰减过程进行了建模分析计算，得出不同膛口流场冲击波对弹丸初速和侧向扰动的影响。通过对30mm口径“金属风暴”武器系统的内弹道方程，运用Matlab软件计算相应的膛内压力分布规律。采用基于有限体积法，针对串联发射方式建立二维模型，用FLUENT软件对
2、其进行仿真计算，得出相应的数据，分析对弹丸初速的影响；采用基于有限体积法，针对并联发射方式建立双管和三管的二维模型，用FLUENT软件对其进行仿真计算，得出相应的数据，分析对弹丸轴向和径向力的影响；采用GAMBIT建立三维模型，用FLUENT软件对其进行计算，得到不同时刻的压力云图和马赫数，分析了膛口流场对弹丸运动姿态的影响。关键词：“金属风暴”武器系统，射击精度，膛口流场，内弹道ISimulationandAnalysisoftheMuzzleFieldFlowofMetalStormWeaponAbstract"MetalStorm"WeaponSyst
3、emisaweaponsystemwhichisfiredsynchronouslyorasynchronouslywithmulti-barrelseries-parallelammunition.Whenthemulti-barrelislaunched,complexmulti-barrelmuzzleflowfieldwillbeformedinfrontofthemuzzle.Theflowfieldwillcauseasymmetricdisturbanceforprojectilesemittedbyeachbarrel,thusaffecti
4、ngthefiringaccuracyofweaponsystems.Inthispaper,theformation,developmentanddecayprocessofmuzzle’sshockwaveunderMetalStorm’sdifferentlaunchingmodeareanalyzedandcalculatedmodelingly,usingtwo-dimensionaldirectionaljetanddynamicmeshrelatedmethods.Inthisway,differentmuzzleflowfieldeffect
5、sofshockwaveontheprojectilevelocityandlateraldisturbancearefoundout.CorrespondingpressuredistributionruleiscalculatedwithMatlabsoftwarebythe30mmcaliber"metalstormweaponsystem"inballisticequation.Basedonthefinitevolumemethod,two-dimensionalmodelisestablishedforserieslaunchmode,andca
6、lculateitusingtheFLUENTsoftware,obtainingthecorrespondingdata,analyzingtheinfluenceonprojectilemuzzlevelocity.Byusingthefinitevolumemethod,doubleandthreetubesofatwo-dimensionalmodelareestablishedbasedontheparalleltransmissionmode,andcalculateitwithFLUENTsoftware,obtainingthecorresp
7、ondingdata,analyzingtheimpactontheprojectileaxialandradialforce;usingGAMBITtoestablishthethree-dimensionalmodel,calculateitbyFLUENTsoftware,gettingthenumberofpressurecloudandMaheratdifferenttimes,analyzingtheinfluenceofthemuzzleflowfieldofprojectilemotion.Keywords:MetalStormWeapon，
8、muzzleflowfield，thefiringa
