XI X Y, LI J, ZHANG Y, et al. Experimental investigation of quasi-static pressure characteristics of the confined cabin in the water mist environment[J]. Chinese Journal of Ship Research, 2024, 19(3): 174–181 (in Chinese). DOI: 10.19693/j.issn.1673-3185.03527
Citation: XI X Y, LI J, ZHANG Y, et al. Experimental investigation of quasi-static pressure characteristics of the confined cabin in the water mist environment[J]. Chinese Journal of Ship Research, 2024, 19(3): 174–181 (in Chinese). DOI: 10.19693/j.issn.1673-3185.03527

Experimental investigation of quasi-static pressure characteristics of the confined cabin in the water mist environment

  • Objective This study focuses on the quasi-static pressure characteristics of a confined cabin in a water mist environment.
    Methods First, on the basis of the theoretical model of quasi-static pressure in a confined cabin in adiabatic ideal gas, two new assumptions are added to establish a theoretical model of quasi-static pressure in a confined cabin in a water mist environment. Internal explosion experiments in a confined cabin with and without water mist are then performed with the charge as an independent variable, and the quasi-static pressure is measured and used to verify the mitigation effect of water mist on quasi-static pressure and obtain its empirical formula.
    Results  Combined with the theoretical model and experimental data analysis, it is concluded that the ability of water mist to reduce quasi-static pressure increases with the increase in charge-volume ratio, but the increase rate gradually decreases. Both the theoretical formulas of the afterburning correction term and empirical formulas can be used to estimate the quasi-static pressure peak in the cabin.
    Conclusions The experimental results verify the mitigation effect of water mist on quasi-static pressure. The experimental data of this paper and others shows good agreement with the empirical formula of the quasi-static pressure peak of an internal explosion in a water mist environment, and can be used to estimate the quasi-static pressure peak.
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