The mechanics associated with the development of modeling and simulation (M&S) software requires a thorough understanding of the underlying physics along with a careful design of the numerical implementation. Here mechanics modeling is used as an umbrella term for the development of a set of physics applications and/or associated numerical methodology. Our mechanics work is aimed at building software along with numerical algorithms to support the development of sometimes specialized M&S tools. A common goal is to provide capability that is accurate, robust, and amenable to high-performance computing (HPC). For some of our customers, exploratory methods are required that initially appear to have limited use outside of their particular application but which may in fact lead to use on a broader set of applications. In general, it is desirable to develop capability that has broad applicability (i.e., algorithms such as non-linear solvers, meshing algorithms, etc.).

We presently are in various stages of development of modeling and simulation tools such as the hydro Lanza code, Python application interfaces, non-linear solver strategies, re-mesh algorithms, particle methods, asteroid risk mitigation simulations, micro machining modeling, and advanced time integration schemes. Our strategy is to continue such development, supporting other organizations where appropriate, and building capability that will use or contribute to our other initiatives (i.e., climate modeling and agent-based modeling). New capability will be provided, for instance, by the development of intelligent non-linear solvers and intelligent re-mesh techniques which may combine aspects of our present work with agent-based modeling.

Research Areas

Shock Hydrodynamics, Curtis Ober

Discontinuous Finite Element Models, Thomas Voth

Compressible Flow, Thomas Smith

Micromachining, Thomas Voth

Verification and Validation for Engineering-Science Applications, Tom Smith

Mesh Enhancement for ALE, Thomas Voth

Presentations & Publications

2009

2008

2007

2006

2005

2004

Pre-2004