涡流发生器对半球形激光转塔跨声速流场影响数值研究OA
Numerical Investigation on the Effect of Vortex Generator on the Transonic Flow Field of a Hemispherical Turret
激光转塔的跨声速绕流场使得机载激光平台面临着严峻的气动光学挑战.为对激光转塔的跨声速流场被动控制提供基本的理论支撑,本文利用了改进亚格子尺度的改进延迟脱体涡模拟(IDDES)方法,针对细长圆柱的针状涡流发生器,对跨声速条件下半球形机载激光转塔的绕流场进行了流动控制数值研究.结果表明,针状涡流发生器引入了明显的二次流特征,削弱了来流能量,导致激光转塔顶部激波强度受到影响,进而影响了激光转塔尾迹区的分离泡尺寸;激光转塔尾迹的横向摆动和纵向波动特征的时…查看全部>>
The airborne laser platform is severely challenged by aero-optical problems led by the transonic flow around its turret.Aiming to essentially study transonic flow features around a turret with a passive flow control method,an Improved Delayed Detached Eddy Simulation(IDDES)approach with modified subgrid scales was employed to conduct a numerical investigation on flow control of a hemispherical airborne laser turret under the transonic condition,using a…查看全部>>
唐松祥;李杰;张恒;魏自言
西北工业大学,陕西 西安 710072西北工业大学,陕西 西安 710072西北工业大学,陕西 西安 710072西北工业大学,陕西 西安 710072
跨声速机载激光转塔流动控制IDDESDMD
transonicairborne laser turretflow controlIDDESDMD
《航空科学技术》 2024 (6)
51-62,12
航空科学基金(2019ZA053005) Aeronautical Science Foundation of China(2019ZA053005)
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