Sierra is Sandia’s engineering mechanics simulation code suite. It is part of the Advanced Simulation and Computing (ASC) program, and provides predictive simulation tools to support U.S. stockpile stewardship. The Sierra suite includes coupled simulation capabilities for thermal, fluid, aerodynamics, solid mechanics and structural dynamics. We use these simulation capabilities to predict the performance of a weapon system in normal operation as well as the response of a system in abnormal environments, such as a crash or fire.
If you are interested in obtaining Sierra software, please contact Kendall Pierson, Scott Miller, or Paul Crozier; or request access here.
This website includes documentation for Sierra products and related capabilities. Click on each link to learn more.
General transport including energy, species, radiation, reacting flow, electrostatics, fluid flow, and displacement
An overlay mesher with the goal of being tolerant to raw CAD geometry with minimal or no cleanup
Workflow management, model building, job submission, requirements tracking, and simulation data management