To model Raptor's hypersonic turbulent combustion SpaceX used an internally developed simulator, which uses wavelet compression to vary resolution across many o

To model Raptor's hypersonic turbulent combustion SpaceX used an internally developed simulator, which uses wavelet compression to vary resolution across many orders of magnitude in both time and physical dimensions: https://www.nextplatform.com/2015/03/27/rockets-shake-and-rattle-so-spacex-rolls-homegrown-cfd/ https://www.nextplatform.com/2015/03/27/rockets-shake-and-ra... Here is a fantastic talk from the NVIDIA conference: https://www.youtube.com/watch?v=txk-VO1hzBY https://www.youtube.com/watch?v=txk-VO1hzBY