Multi-Physics Modeling Based on Combustion of Energetic Materials
We present an innovative method of multi-physics application involving energetic materials. Energetic materials are related to reacting flows in extreme environments such as fires and explosions. They typically involve high pressure, high temperature, strong non-linear shock waves, and high strain rate deformation of metals. We use an Eulerian methodology to address these problems. Our approach is naturally free from large deformation of materials that makes it suitable for high strain-rate multi-material interaction problems. Furthermore we eliminate the possible interface smearing by using the level sets. We have devised a new level set based tracking framework that can elegantly handle large gradients typically found in reacting gases and metals. We show several work-in-progress applications of our algorithm including the Taylor impact test, explosive venting and additional confined explosion problems of modern interest.
S. Itoh and K. Hokamoto
K. H. Kim and J. I. Yoh, "Multi-Physics Modeling Based on Combustion of Energetic Materials", Materials Science Forum, Vol. 566, pp. 95-100, 2008