Atomization of liquid droplets under interacting of blast wave has been practically used in industry and practice,but there are little studying about strong blast wave /atomization of liquid droplets,which has a positive effect on avoiding explode shock of ship cabin.The passage use a way of finite element,simulating pressure change of strong shock wave/single liquid droplet in 2-dimensional,and the change of shape and location of the droplet. Analyzing breakup characteristics of different explosive quality and distance,the results show that there are two typical mode of liquid droplet breakup,which has obvious difference with weak blast wave.The explode distance and explosive quality has a decisive effect on the speed of blast wave,and then influencing the breakup mode of droplet.The reflected blast wave and the transmitted wave in model of high Mach number are obviously different from them of low Mach number.What’s more, the area of local low pressure diffracted by vortex pair of high Mach number is much broader than it of low Mach number,and then the process of high Mach number speed is more severe and undergoes less time.In the process of liquid droplet deformation,comparing with high Mach number model ,the liquid droplet of low Mach number model has a obvious delayed deformation,slower moving speed and less thorough breakup process.
Liu Gui-bing1,2,Hou Hai-liang1, Zhu Xi1.
Study on the interaction between shock wave and a liquid droplet[J]. Journal of Vibration and Shock, 2017, 36(13): 45-52
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