Extending the Uintah Framework through the Petascale Modeling of Detonation in Arrays of High Explosive Devices

Martin Berzins, Jacqueline Beckvermit, Todd Harman, Andrew Bezdjian, Alan Humphrey, Qingyu Meng, John Schmidt, Charles Wight
2016 SIAM Journal on Scientific Computing  
The Uintah software framework for the solution of a broad class of fluid-structure interaction problems has been developed by using a problem-driven approach that dates back to its inception. Uintah uses a layered taskgraph approach that decouples the problem specification as a set of tasks from the adaptive runtime system that executes these tasks. Using this approach it is possible to improve the performance of the software components to enable the solution of broad classes of problems as
more » ... as the driving problem itself. This process is illustrated by a motivating problem that is the computational modeling of the hazards posed by thousands of explosive devices during a Deflagration to Detonation Transition (DDT) that occurred on Highway 6 in Utah. In order to solve this complex fluid-structure interaction problem at the required scale, substantial algorithmic and data structure improvements were needed to Uintah. These improvements enabled scalable runs for the target problem and provided the capability to model the transition to detonation. The solution to the target problem from these runs provided insight as to why the detonation happened, as well as demonstrating a possible remediation strategy that may have avoided detonation.
doi:10.1137/15m1023270 fatcat:5f7bs5eks5hu3oue3l7hjzeoze