Abstract: Because there is a high computational cost to simulate flame animation by using the methods of mathematical physics, a new flame simulation method is proposed. This method combines the advantages of mathematical and physics method and particle systems, uses the incompressible Navier-Stokes equations as physical models of flame simulation, and increases computing speed by simplifying the calculation of external force term. A new texture-based flame rendering method is proposed to achieve satisfactory results of flame animation. Experiments, based on OpenGL in C++ programming, achieve real-time flame simulation by using the proposed method successfully.
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Key words: fire simulation, particle system, physical model, Navier-Stokes equations, texture mapping