Vented gaseous deflagrations: Modelling of spring-loaded inertial vent covers

Molkov, Vladimir; Grigorash, Alexander; Eber, Rainer

doi:10.1016/j.firesaf.2005.01.004

Cited by 20 publications

(6 citation statements)

References 5 publications

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“…turbulence − wrinkled flame surface smooth flame surface (21) In Fig. 4, the value of χ averaged on the whole flame surface is plotted as a function of time together with the pressure drop.…”

Section: Chemical Effect: Turbulizationmentioning

confidence: 99%

“…Zero-dimensional models proved effective in advancing the comprehension and the formalization of data gained for simply vented explosions [19][20][21]. Zero-dimensional and onedimensional models [4,17] were also proposed to represent an explosion vented through a duct but result in a scarce predictive capability as they rely strongly on empirical parameters.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CFD analysis of gas explosions vented through relief pipes

Ferrara

Benedetto

Salzano

et al. 2006

Journal of Hazardous Materials

122

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Section: Chemical Effect: Turbulizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CFD analysis of gas explosions vented through relief pipes

Ferrara

Benedetto

Salzano

et al. 2006

Journal of Hazardous Materials

122

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“…Âñêðûòèå èíåðöèîííûõ ÏÊ â ïðèëîaeåíèè ê çàùèòå çäàíèé èçó÷åíî íåäîñòàòî÷íî. Áîëüøèíñòâî ðàáîò ïîñâÿùåíî çàùèòå âçðûâîîïàñíîãî îáîðóäîâàíèÿ è ñîîðóaeåíèé, áîëåå óñòîé÷èâûõ ê âçðûâíûì íàãðóçêàì [5][6][7][8].…”

Section: î çàâèñèìîñòè ïàðàìåòðîâ âíóòðåííåãî âçðûâà îò óñòðîéñòâà ïðunclassified

On the dependence of internal explosion parameters on the installation of safety structures in the apertures of the protecting walls of industrial and residential buildings

Gorev¹,

Molkov²

2018

PVB

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“…A model of explosion pressure build up in enclosures with translating or hinged inertial vent covers is presented in [29,30]. The vented explosion dynamics in an enclosure with inertial spring-loaded vent covers is studied in [31]. To study the effect of mass inertia of explosion doors or panels moved by translation, a set of experiments was carried out in silo [32].…”

Section: I In Nt Tr Ro Od Du Uc Ct Ti Io On Nmentioning

confidence: 99%

A Simplified Model for Explosion Venting Due to the Separation of a Heavy Protective Cover

Yankelevsky

Kochetkov

Feldgun

et al. 2012

International Journal of Protective Structures

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The paper presents a study aiming at simulation and understanding of some characteristics of an interior explosion within a room with an opening, that is initially being closed by a heavy cover, and may open gradually due to the effect of the explosion products. An effective simplified model of explosion venting due to separation of the protective cover has been developed. The developed model with lumped parameters is based on the Bernoulli equation and describes the quasi-stationary phase of the vented interior explosion. The initial internal gas pressure induced by the very short non-stationary phase is predicted by the developed approximate analytical formula, based on the full energy conservation law. The formula yields very good agreement with experimental data and with numerical analysis results. The simulation of the unsteady outflow from a cylindrical high-pressure vessel upon a sudden separation of the cover has shown that the developed simplified model yields the integral characteristics of the outflow process (such as a maximum cover's velocity and displacement etc) with reasonable accuracy. The proposed approach is demonstrated by the simulation of gas outflow from a chamber upon a sudden separation of the cover or upon a rectangular shutter rotation about a fixed line hinge. The analysis has been performed using the developed simplified approach and through simulations with AUTODYN. A good correspondence between both methods has been obtained. The effect of gravity on the protective cover velocity and displacement has been also examined.

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Vented gaseous deflagrations: Modelling of spring-loaded inertial vent covers

Cited by 20 publications

References 5 publications

CFD analysis of gas explosions vented through relief pipes

CFD analysis of gas explosions vented through relief pipes

On the dependence of internal explosion parameters on the installation of safety structures in the apertures of the protecting walls of industrial and residential buildings

A Simplified Model for Explosion Venting Due to the Separation of a Heavy Protective Cover

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