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The numerical reversibility of the bidimensional billiard -192 particles- [La réversibilité numérique du billard bidimensionnel -192 particules-].




These simulations have a duration of 513 time steps. At t=0 just one particle starts moving (on the right-hand side and halfway up). Between t=256 and t=257, all velocities are reversed. The reversibility of the computations depends on the number of particles:

The numerical reversibility of the bidimensional billiard -192 particles-
192 particles: reversibility.		The numerical irreversibility of the bidimensional billiard -336 particles-
336 particles: non reversibility.		The numerical irreversibility of the bidimensional billiard -768 particles-
768 particles: non reversibility.		The numerical irreversibility of the bidimensional billiard -1376 particles-
1376 particles: non reversibility.



See a related picture:

The numerical irreversibility of the bidimensional billiard


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