three mathematicians are working on the digitalization of engine operation
they are wasting their time !!
They would do better to assimilate the Lagrange and Hamilton equations, to realize the errors, which are easily amplified in a discrete simulation, because the discretization easily loses the conservation of energy and therefore the simulation will prove absolutely nothing at all !!!
Only a real system giving perpetual energy, will be demonstrative, not calculations and simulations, which well done conserve energy !! .
You will not be the first, who in their calculations or simulation lose without realizing it, the conservation of energy, and claim to have an over-unit motor on their paper !!