Method for simulating combustion in digital imagery with equilibrium and non-equilibrium conditions

A computer-implemented method of generating one or more visual representations of a combustion event, the computer-implemented method comprising:

• under the control of one or more computer systems configured with executable instructions:
• simulating the combustion event, which transforms combustion reactants into combustion products, the combustion event occurring at a reference pressure of an ambient fluid;
• determining values of combustion properties, the values of the combustion properties being calculated as a function of a nonzero pressure field;
• determining compressible characteristics of the ambient fluid;
• and
• generating the one or more visual representations of the combustion event based on the values of the combustion properties and the compressible characteristics of the ambient fluid,
• wherein the combustion products comprise soot, and wherein simulating the combustion event comprises simulating formation of the soot within a specified temperature range,
• wherein gases affected by the combustion event emit a second luminance,
• wherein the second luminance is generated at least in part by a modified Stefan-Boltzmann law wherein an ambient temperature raised to the fourth power is subtracted from a gas temperature raised to the fourth power.

A computer-implemented method of generating one or more visual representations of a combustion event, the computer-implemented method comprising:

• under the control of one or more computer systems configured with executable instructions:
• simulating the combustion event, which transforms combustion reactants into combustion products, the combustion event occurring at a reference pressure of an ambient fluid;
• determining values of combustion properties, the values of the combustion properties being calculated as a function of a nonzero pressure field;
• determining compressible characteristics of the ambient fluid;
• and
• generating the one or more visual representations of the combustion event based on the values of the combustion properties and the compressible characteristics of the ambient fluid,
• wherein the combustion products comprise soot,
• wherein simulating the combustion event comprises simulating formation of the soot within a specified temperature range, and
• wherein the combustion reactants comprise a fuel, and wherein an amount of the soot produced by the combustion event is related to an amount of the fuel by an equilibrium constant.