DOI link for Thermodynamic Automata
Thermodynamic Automata book
It has been observed by Yang et al. (1999) that if the average particle velocity is less than .2 times the speed of light then non-relativistic
collision rules yield results that are indistinguishable from the relativistic rules. When this modification is made the dimensionless velocity loses the association with being a fraction of the speed of light. The thermodynamic behaviour of the automaton model, however, retains the thermodynamic properties of an ideal gas.