Fully Implicit, Jacobian-Free, Newton-Krylov Methods in Production Level MHD Fusion Codes

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$99,739.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-09ER85511
Agency Tracking Number:
91414
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Tech-x Corporation
5621 Arapahoe Avenue, Suite A, Boulder, CO, 80303
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
806486692
Principal Investigator:
Travis Austin
Dr.
(303) 996-2038
austin@txcorp.com
Business Contact:
Laurence Nelson
Mr.
(720) 974-1856
lnelson@txcorp.com
Research Institution:
n/a
Abstract
The DOE's Office of Fusion Energy Sciences (OFES) has spent tens of millions of dollars developing simulation tools that assist in understanding the requirements for stable and sustained fusion. However, the main magnetohydrodynamic (MHD) OFES simulation tools use methods that have numerical stability limitations dictated by the plasma velocity. Thus, there exists an urgent need to introduce modern computational algorithms into these OFES simulation tools to maximize their efficiency on petascale computing architectures. Solving the nonlinear system of equations presents a challenge, but recent work that has demonstrated the existence of a preconditioner that has the potential to scale remarkably on petascale machines. This project will develop an implicit, nonlinear solver for two-dimensional (2D) problems. The initial focus will be on the momentum equations within the MHD system; then, the work will be extended to the full set of equations for 2D problems. Commercial Applications and other Benefits as described by the awardeeThe expertise gained in this project should lead to consulting work from the NIMROD project and also from the Center of Extended Magnetohydryodynamic Modelling. Other opportunities also should exist beyond the DOE.

* information listed above is at the time of submission.

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