An efficient visual virtual fire model focusing on basic phenomena
By Daniel Smith
Started on Sep 2, 2021
There are a few powerful methods to simulate smoke or fire (such as NIST's FDS & Smoke View), but the visual component is missing. With modern computing capabilities, it is becoming more and more viable to visually simulate fire while maintaining accuracy. I plan on using the methods of the attached file coupled with the Unity 3d Game Engine to create a simple gaseous fuel model that will focus on three basic phenomena. This model will act as a base. The three phenomena are the blue core, black body radiation, and the soot that occurs as the flame cools. An implicit surface will track the reaction zone, between this zone two incompressible flow equations will be coupled after calculating the fuel and product respectively(combined with a vorticity confident term). The blackbody radiation is modeled using a stochastic raymarching algorithm(chromatic adaptation is used ). All relevant equations and methods will be utilized as closely as possible in order to maintain maximum accuracy.