潜射导弹垂直出水流场数值研究

Numerical Stidy on a Submarine-launched Missile Vertically Exited From Water

潜射导弹垂直出水流场属于空气场与水流场之间存在自由界面的二相流。文中基于 VOF 方法,建立潜射导弹垂直出水流场的数学模型,并给出追踪自由面运动的重构算法。该算法不仅使编程简便,而且可以处理自由面重入等强非线性现象,它对于工程应用具有足够的精度。算例的计算结果表明文中建立的数学模型及其重构算法是合理、有效的,具有足够精度和稳定收敛的优点。

The flow being formed for a submarine-launched missile vertically exited from water,is a two phases flow with free surface.Based on VOF method,we establish the mathematic model on the submarine-launched missile vertically exited from water,and a arithmetic to reconstruct free surface.The program based on the arithmetic is convenient.It can treat with the problem with strong nonlinear phenomenon.The results show that the mathematic model and the numerical method are rational and effective and can converge stably.It has sufficient accuracy being used in projects.