Real-time internal combustion engine simulation

This stuff would be great not just for sounds in game, but e.g. in racing or flight simulators I would want the plane engine realistically simulated since a large part of flying some aircraft is doing it in a way that reduces wear and tear on this critical component! Stuff like spark plug fouling, engine flooding, carb temperature effects, mixture/RPM/manifold pressure optimisation at altitude, etc.

Here's a good video on how it was built https://www.youtube.com/watch?v=RKT-sKtR970

I'm fascinated by how this works. Does it do any CFD type of simulation of the gas flow in the engine? Is the simulation entirely 2D?

I've thought about doing a similar project myself but would like to be able to simulate the effects of engine tuning techniques such as "porting" of the cylinder head. I think that is quite hard - I don't think a simple incompressible flow CFD simulation would be sufficient. Particularly if you wanted to simulate the pressure waves in a tuned-length-induction system, I'm pretty sure you'd need compressible flow.

I haven't been able to find any suitable tutorials on simulating compressible flow. Most of the teaching material I found starts with vast amounts of pencil and paper maths exercises and assumes graduate level vector calculus. I want something that starts with for loops and a hand waving understanding of the concepts of vector calculus.

I think you could still do something interesting in 2D. I've struggled to find anywhere to discuss such ideas.

Since he wrote a generic physics engine for this, I'm wondering, can it simulate musical instruments?

That's amazing! This guy's talents are wasted working with mere mortals

I suppose refueling will become an important game mechanic in the future because of the nostalgia

amazing. a bit of smoke would be lovely.