The main project page[1] contains links to various papers used to investigate this, including a 3D acoustic ray tracer[2] developed for this. [1]: https://asce

The main project page[1] contains links to various papers used to investigate this, including a 3D acoustic ray tracer[2] developed for this. [1]: https://ascent.aero/project/acoustical-model-of-mach-cut-off/ https://ascent.aero/project/acoustical-model-of-mach-cut-off... [2]: https://etda.libraries.psu.edu/catalog/18490zfh5044 https://etda.libraries.psu.edu/catalog/18490zfh5044