多航行体水下发射弹道干扰特性影响数值研究

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中图分类号：O368;TJ762.4 国标学科代码：13035 文献标志码：A

Abstract：Duringtheunderwaterlaunchof multiple projectiles，each projectileoperates withinahighlycomplexanddynamic flowfield，whereits rajectorydefletionisinfluencedbyacombinationoffactors.Thesefactorsincludeinitialconditionssuch as the projectile's velocity and the presence ofcrosflow，as wellas the mutualinterference effectsamong the projectiles.To gaina deeperunderstandingoftecavitationevolutionand trajectory interferencecharacteristics during theunderwate launch of multipleprojectiles，thisstudydevelops acomprehensive numerical simulation model.The model integrates the overlapping grid technique and thefinite volume methodand iscoupled withasix-degre-of-freedom （6-DOF）motionmodel.Through this model，theinfluence mechanismsof spatialarrangement，launchvelocityandcrossflowontrajectorydeflectionare systematicallyanalyzed.Theresultsof thisstudyreveal severalimportant findings.First，thespatial arrngementof the projectils hasa relatively minor impacton trajectory deflection.Anequilateral triangular configuration is found to bean optimalchoiceforpracticalapplications，asitmaximizes theeficientutilzationof thelaunch space.Second，asthelaunch velocityincreases，thewakeinterferencebetweenprojectilesbecomesmorepronounced.Thisintensifiedinterferenceleads to significant disturbancesintheflowfieldandstronger mutual trajectoryinterferenceamong theprojectiles.Third，higher crosflowvelocities exacerbate theasymmetricdevelopmentofcavitationnear theprojectileshoulders.When thecrossflow velocity exceeds 0.75m/s ， it becomes the dominant factor influencing trajectory deflection. These research findings provide a robust theoretical foundation for trajectory predictionandlayout optimization in theunderwaterlaunch ofmultipleprojectiles.

Keywords： multiple projectiles; trajectory;water exit; cavitation flowfield

21世纪是海洋的世纪，海洋军事力量的发展促进了水中兵器和水下武器的研究进步。（剩余17749字）