Interactions of shock waves with polydisperse particle clouds: Effects on mitigation and topological heterogeneity

Author:

Siddappa C.1ORCID,Thomine O.1ORCID,Shadloo M. S.12ORCID,Gai G.3ORCID,Hadjadj A.1ORCID

Affiliation:

1. INSA Rouen Normandie, Univ Rouen Normandie, CNRS, Normandie Univ, CORIA UMR 6614 1 , F-76000 Rouen, France

2. Institut Universitaire de France 2 , Rue Descartes, F-75231 Paris, France

3. Department of Mathematics, University of British Columbia 3 , Vancouver, British Columbia V6T1Z2, Canada

Abstract

This study explores the efficiency of employing a particle-spray cloud to mitigate shock wave propagation, which is essential in various industrial applications, especially in preventing potential hydrogen explosions within nuclear reactor containment buildings. Numerical simulations, primarily in one- and two-dimensional configurations, are utilized to examine the interaction between shock waves and a cloud of polydisperse particles, considering both air and hydrogen–air mixtures as carrier gases. A novel reduced-order theoretical model is developed to analyze the dispersion pattern of polydisperse particles, with validation conducted through direct numerical simulations. Results demonstrate that the polydispersion of cloud particles significantly reduces shock wave propagation compared to monodisperse particles. Notably, particles with smaller diameters and higher standard deviations (σ) show increased attenuation effects. Additionally, scenarios with higher particle volume fractions (τv,0) contribute to enhanced shock wave attenuation. A critical incident Mach number is identified, indicating a significant change in shock wave transmission from supersonic to subsonic when Ms<2.8.

Funder

Labex EMC3

Publisher

AIP Publishing

Reference35 articles.

1. G. Gai , “ Modeling of water sprays effects on premixed hydrogen-air explosion, turbulence and shock waves,” Ph.D. thesis (Normandie Université, 2020).

2. Shock and blast waves mitigation;Shock Waves,2013

3. Violent flows in aqueous foams III: Physical multi-phase model comparison with aqueous foam shock tube experiments;Shock Waves,2018

4. Experimental studies on blast mitigation capabilities of conventional dry aqueous foam;AIP Adv.,2020

5. The influence of water sprays on gas explosions. Part 1: Water-spray-generated turbulence;J. Loss Prev. Process Ind.,1995

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3