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We consider the explosion problem in an incompressible flow introduced in [5]. We use a novel Lp − L∞ estimate for elliptic advection-diffusion problems to show that the explosion threshold obey...
This report is a summary of the Japanese translation of the initial report to the HSC and the Environment Agency of the investigation into the explosions and fires at the Buncefield oil storage and tr...
Substantiation of Thermodynamic Criteria of Explosion Safety in Process of Severe Accidents in Pressure Vessel Reactors
severe accident hydrogenous steam-air mixture fuel-containing masses steam-gas explosion criteria model
2012/4/19
The paper represents original development of thermodynamic criteria of occurrence conditions of steam-gas explosions in the process of severe accidents. The received results can be used for modelling ...
Improving flammable mass estimation for vapor cloud explosion modeling in an offshore QRA
Release rate Dispersion Flammable mass
2012/3/26
Presence of congestion and confinement in offshore modules due to limited availability of space make Vapor Cloud Explosions (VCEs) a significant contributor to risk. There are several methods availabl...
Experimental study on the fractal characteristic of methane explosion flame
Methane explosion Schlieren image Flame structure Fractal dimension
2012/3/28
In this paper flame microstructures and propagation characteristic of methane explosion are studied by high speed schlieren photography technique. By experiment it shows that flame front surface and i...
Numerical simulation on foam ceramic blasting block device under the action of explosion transform
ANSYS finite element simulation Euler equation Explosion destructive Foam ceramic blasting block device Blasting block numerical calculation
2012/3/27
The responsive behaviour of the action of under explosion blasting block damaging device structure was investigated based on quality equation, energy conservation equation and thermodynamics equation,...
Simulation analysis on structure safety of coal mine mobile refuge chamber under explosion load
Coal mine Refuge chamber Structure safety Shock wave FEA
2012/3/28
In order to check structural strength of coal mine mobiles refuge chamber, and do security evaluation of the mobile refuge chamber, a refuge chamber model was established, then a finite element method...
Experimental study on the feasibility of explosion suppression by vacuum chambers
Vacuum chamber Suction Explosion suppression Specific impulse Overpressure–impulse guideline (P–I guideline)
2012/3/28
In view of the invalidity of suppression and isolation apparatus for gas explosion, a closed vacuum chamber structure for explosion suppression with a fragile plane was designed on the base of the suc...
Numerical simulation and study on the transmission law of flame and pressure wave of pipeline gas explosion
Pipeline Gas explosion Flame Pressure wave Transmission laws FLUENT
2012/3/31
Based on FLUENT simulation software, the laws of transmission of flame and pressure wave in pipeline gas explosion were studied. It turned out that, the maximum pressure value of the explosion point i...
High resolution numerical simulation of methane explosion in bend ducts
Methane explosion WENO Detonation Bend angle
2012/3/28
In this paper we developed a parallel code, adopting a fifth-order weighted essentially non-oscillatory (WENO) scheme with a third-order TVD Runge-Kutta time stepping method for the two-dimensional re...
Coupling effects of foam ceramics on the flame and shock wave of gas explosion q
Foam ceramics Gas explosion Flame Shock wave Coupling effects
2012/3/31
The coupling of gas explosion flame and shock wave is analyzed. In the gas explosion process, shock wave is affected by the flame directly, and shock wave also induces the flame. Inhibiting explosion ...
Lepton flavor violating New Physics and supernova explosion
Lepton flavor violating New Physics supernova explosion
2011/1/13
Electrons and electron neutrinos in the inner core of the core-collapse supernova are highly degenerate and therefore numerous during a few seconds of explosion. In contrast, leptons of other flavors ...
Quark nova imprint in the extreme supernova explosion SN 2006gy: the advent of the Quark Star
Quark nova imprint the extreme supernova explosion SN 2006gy
2011/1/11
The existence of quark stars has until now been purely hypothetical. In this work, we uncover undeniable evidence of these exotic objects with far reaching implications to various branches of physics ...
The revival of an explosion mechanism of massive stars - the quark hadron phase transition during the early post bounce phase of core collapse supernovae
Core collapse supernovae protoneutron stars general relativity radiation hydrodynamics
2010/11/16
We explore explosions of massive stars, which are triggered via the quark hadron phase transition during the early post bounce phase of core collapse supernovae. The onset of quark matter is favored u...
Rare-gas clusters in intense VUV, XUV and soft x-ray pulses: Signatures of the transition from nanoplasma-driven cluster expansion to Coulomb explosion in ion and electron spectra
VUV XUV soft x-ray pulses
2010/11/16
We investigate the wavelength dependent ionization, heating, and expansion dynamics of medium-sized rare-gas clusters (Ar$_{923}$) under intense femtosecond short-wavelength free electron laser pulse...