Computations and Experiments of Shallow Depth Explosion Plumes
Computations and Experiments of Shallow Depth Explosion Plumes
复制标题
浅层爆炸羽流的计算与实验
DOI：
10.21236/ada476955
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
J. Solomon
中科院分区：
文献类型：
--
作者：
W. Szymczak;J. Solomon
翻译后摘要：预测浅深度爆炸羽流行为的数学模型和计算代码进行了验证。该模型是基于一个广义的制定流体力学和使用不可压缩液体的假设。该公式非常适合于预测长时间的气泡和羽流动力学。模型的初始条件来自球对称气泡理论，结合经验测量，由初始冲击波从自由表面的反射所引起的喷雾圆顶的效果被经验地模拟为在表面上的充电的凹部。与实验照片的比较提供了定性的一致性。定量测量的羽流高度和羽流密度，使用电导率探针和微波吸收的计算数据进行比较，结果为单和多电荷拍摄。
Abstract : A mathematical model and computational code are validated for predicting shallow depth explosion plume behavior. The model is based on a generalized formulation of hydrodynamics and uses an incompressible liquid assumption. This formulation is well suited for predicting long-time bubble and plume dynamics. Initial conditions for the model are derived from spherically symmetric bubble theory, combined with empirical measurements, The effects of the spray dome caused by the reflection of the initial shock wave off the free surface is modeled empirically as a recess in the surface above the charge. Comparisons to photographs of experiments provide qualitative agreement. Quantitative measurements of plume heights and plume densities using conductivity probes and microwave absorption are also compared to the computational data, Results for both single- and multiple-charge shots are included.