[1] We explore physical mechanisms controlling formation of a confining conduit plug using 1D, steady-state numerical models of magma ascent. Model results for the welldocumented 1997 Vulcanian explosions at Soufrière Hills volcano were compared against subsurface conditions constrained by geophysical and petrologic analysis. We suggest that, if magma is permeable and overpressured and rock sur...

The objective of this research is the formulation, implementation, and validation of a numerical method to accurately model and simulate explosion blast and shock waves for the disruption of asteroids. While the cases presented in this paper are not explosions caused by actual nuclear devices, they will aid in validation of the numerical model for future nuclear-explosion simulations. Current w...

Nowadays, tunneling in urban areas is a common activity for a variety of transportations such as subways, water supply, lifelines andsewers that may require blast operations. The characteristics of stress waves of the blast are quite different from earthquake waves. The blast waves are usually of high frequency content, short duration, equality of amplitudes in horizontal and vertical direction...

Abstract Shear waves play a key role in seismic discrimination between explosions and earthquakes due to their different source mechanisms. However, shear are often observed field with unexpectedly large amplitude, generation mechanism is still significant unresolved question seismology. Many explanations have been proposed, including the asymmetry of explosive sources, heterogeneity and/or ani...

Explosions play an important role in many games. Yet, as explosions are sudden and highly turbulent, animating visually pleasing and dynamic realtime explosions is a very complex task. We present a method for animating explosions completely on the graphics processing unit (GPU). The simulation allows for arbitrary internal boundaries and is governed by a combustion process, a Stable Fluids solv...

Astrophysical explosions result from the release of magnetic, gravitational or thermonuclear energy on dynamical time scales, typically the sound-crossing time for the system. These explosions include solar and stellar flares, eruptive phenomena in accretion discs, thermonuclear combustion on the surfaces of white dwarfs and neutron stars, violent magnetic reconnection in neutron stars, thermon...

background economic consequence analysis is vital for recognizing pipeline comprehensive risk analysis and emergency response planning. objectives the purpose of this study was to estimate economic loss due to fire and explosion in petrochemical feed and product pipelines. materials and methods the present study which performed on 47 pipelines of a petrochemical special zone, pertinent pipeline...

Astrophysical explosions result from the release of magnetic, gravitational or thermonuclear energy on dynamical time scales, typically the sound-crossing time for the system. These explosions include solar and stellar flares, eruptive phenomena in accretion discs, thermonuclear combustion on the surfaces of white dwarfs and neutron stars, violent magnetic reconnection in neutron stars, thermon...

We investigate propagation and reflection loss using hydroacoustic waves from explosion sources in the Indian Ocean recorded at the International Monitoring System’s (IMS) hydrophone stations. We developed a discovery procedure that searches the automatic processing results from the International Data Centre (IDC) for signals that match explosive characteristics. Potential candidate explosions ...