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Mine gas explosion is one of the most serious mine disasters , a tremendous threat to the state property and people's lives . Therefore, the mechanism and characteristics of gas explosion accident , and the use of virtual reality technology image accurate reproduction gas explosion scene for gas explosion accident prevention , gas explosions in the technical inspection work , to provide theoretical and technical guidance and support. In explosion and combustion, in the systematic study of the physical mechanism of gas explosion based on the mathematical model of the gas explosion , gas explosion particle system visual simulation . Papers on the basis of analysis of the conditions , characteristics and parameters of the gas explosion , and influencing factors , gas explosion spread of the physical model ; based on a single entry , based on the actual situation of Obstacles gas explosion , combined with the conditions set obstacles the following factors affect gas explosion propagation , a mathematical model of the gas explosion and Communication Obstacles conditions ; based on the kinetic properties of the particle motion , combined with the buoyancy field , gravity field , whirlpool field of particle motion , the use of particle systems and BillBord visual simulation technology for gas explosion phenomenon . Thesis OpenGL texture mapping technology and LOD draw the particles , gas explosion environment model . Determine the randomness of the initial velocity of the traditional particle system , but the lack of specificity of specific simulation object , the papers combined gas explosion , a modified method to set the initial speed of the particles , the effects of the explosion is more realistic . The paper is based on the basic principles of gas explosion , gas explosion phenomena using improved particle system simulation . Experimental results show that the improved particle system to reproduce realistic spherical expansion of the gas explosion effect and enhance the realism of the scene .
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