Proposal
updated 2/7/2025

1. Introduction
Mach rings and afterburner effects are some of the most visually striking and scientifically fascinating phenomena in modern aerospace and combustion technology. They serve as a testament to humanity’s advancements in engineering and our relentless pursuit of the unknown. The intricate interplay between high-speed shockwaves, turbulent combustion, and atmospheric interaction makes this a highly complex effect to recreate. Inspired by these challenges, I aim to develop a toolkit in Houdini to simulate Mach rings with greater physical realism.
2. Motivation
While various artists and researchers have attempted to simulate Mach rings and similar high-speed combustion effects, many existing implementations rely heavily on artistic approximations rather than physically accurate simulations. I have previously worked on a personal project involving a rocket launch effect. Still, like many other attempts, the results were more of an artistic representation rather than a physically grounded simulation. The limitations of Houdini’s Pyro solver at handling supersonic and hypersonic flow phenomena necessitate a degree of creative problem-solving to improve accuracy while maintaining computational feasibility.

