Figure1:Liquid/Vapour explosion Figure2:Suspended particle explosion
In the entertainment industry at present,a majority of the explosions are created at full scale in the real world in miniature.When explosions are generated in full-scale,they often must be faked to appear destructive ,which might prove to be costly and dangerous.Therefore CG explosions are often the better alternative .In 3D packages like Maya,there are two main ways of simulating explosions using Particles and Fluids,which comes from the fact that the two main types of explosions are Suspended particle and Liquid explosions
A suspended particle, or dust, explosion occurs when a highly flammable particulate such as gunpowder, coal, sawdust, or flour, is dispersed over a volume of air and then ignited. Possible dust dispersal mechanisms include vibrations or a smaller initial explosion.
Liquid/vapor explosions occur similarly except rather than a flammable particulate it is a flammable liquid and its vapors that are dispersed and then ignited. One notorious example of a liquid/vapor dispersal scenario, known as a BLEVE (Boiling Liquid Expanding Vapor Explosion), occurs when a closed container of flammable liquid is heated. The heat vaporizes liquid in the container, building pressure until the container ruptures and sprays a flammable mixture of liquid and vapor into the surrounding environment where it can then be ignited by whatever source had been heating the container.