NUMERICAL STUDY ON EXPLOSION CLOUDS IN STABLY STRATIFIED ATMOSPHERE

NUMERICAL STUDY ON EXPLOSION CLOUDS IN STABLY STRATIFIED ATMOSPHERE[J]. MECHANICS IN ENGINEERING, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-226

Citation:

NUMERICAL STUDY ON EXPLOSION CLOUDS IN STABLY STRATIFIED ATMOSPHERE[J]. MECHANICS IN ENGINEERING, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-226

Citation:

NUMERICAL STUDY ON EXPLOSION CLOUDS IN STABLY STRATIFIED ATMOSPHERE[J]. MECHANICS IN ENGINEERING, 2009, 31(3): 16-22. DOI: 10.6052/1000-0879-2008-226

Abstract

为了研究爆炸及燃烧产生的``蘑菇''状烟云，采用中尺度气象模式RAMS(regionalatmospheric modeling system)模拟研究了冲击波过后的爆炸烟云运动过程. 流场和涡度场结果显示，对于稳定层结大气条件，爆炸烟云在浮力作用下会形成浮力涡环结构；烟云在到达最大高度以后，形成了环套环的多涡结构. 通过模拟不同爆炸当量和不同大气稳定度的烟云上升最大高度，得到了与目前常用的爆炸烟云上升公式一致的形式.

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