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buf | 3 months ago

I spent a long time playing with the sim. Nice work.

Most of the random data sets that I ran ended up with a two body system, where the third body was flung far into space never to return. However, some of these were misleading. I had one running for 15 minutes at 5x, and the third body did eventually return.

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lutusp|3 months ago

> However, some of these were misleading. I had one running for 15 minutes at 5x, and the third body did eventually return.

That's not misleading. Real three-body orbital systems show this same behavior. Consider that such a system must obey energy conservation, so only a few extreme edge cases lose one of its members permanently (not impossible, just unlikely).

Ironically, because computer simulators are based on numerical DE solvers, they sometimes show outcomes that a real orbital system wouldn't/couldn't.

moi2388|3 months ago

I don’t understand. How would energy not be conserved if one flew away? It’s not in the system, but it’s still out there?

jgchaos|3 months ago

It might be fun to add some kind of visualization showing when a body has enough energy to potentially escape the system.

pylotlight|3 months ago

Question, can you mathmatically plot a trajectory across time X and energy required to see when it's met and how long it would take given a start position or something? Or is the simulation so complex that you can never project. Oh never mind I see answers to this elsewhere here, cheers.

JKCalhoun|3 months ago

Agree. I was hoping perhaps it would "flash" or do something visually different to indicate "Bye bye!"