【摘要】 通过引入拉格朗日坐标R,给出了只以α和β两条特征线为基础的对包含多个间断的非均熵流场的特征线法计算程序,并就不同强度的空中爆炸波入射至水面的问题,通过α特征线的逐层循环,在计算机上完成了压力和质点速度等量定时流场和定点波形的计算工作。在入射冲击波较弱时,对水采用了击波—单波近似和声学近似。更多还原

【Abstract】 By introducing the Lagrangian coordinates, a computational program is given of non-homoentropic flow fields involving multi-discontinuities on the basis of only the α-and β-characteristics. Calculations of air blast shocks with different intensities colliding on water surface are completed, in which a layer-to-layer cycle of the α-characteristics is made and the pressure as well as particle velocity are given.更多还原