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工程力学  2013 

射流速度对气幕发射方式下航行体运动过程的影响研究

DOI: 10.6052/j.issn.1000-4750.2012.05.0378, PP. 288-292

Keywords: 流体力学,多相流,数值模拟,水下航行体,气幕

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Abstract:

气幕发射方式是一种新型的航行体水下垂直发射方式。采用数值模拟的方法,研究了不同射流速度情况下航行体水下垂直发射过程中气幕形态、航行体表面压力及阻力特性等的变化规律,得到了在出筒过程中,不同气体射流速度情况下,航行体均可顺利通过气幕的最小半径处,气体射流马赫数越大,航行体总阻力系数越大;在出水过程中,航行体总阻力系数单调降低,与气体射流马赫数无关等结论。

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