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A New Hybrid Method for High-Order EM-PIC Simulations

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
81879
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
F071-009-1838
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Wave Computation Technologies, Inc.
1800 Martin Luther King Jr. Parkway Suite 204 Durham, NC -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: A New Hybrid Method for High-Order EM-PIC Simulations
Agency / Branch: DOD / USAF
Contract: FA9451-07-M-0092
Award Amount: $100,000.00
 

Abstract:

We propose to prototype and test a new 3-D hybrid technique that combines two efficient algorithms, (a) the discontinuous Galerkin pseudospectral time-domain (DG-PSTD) method and (b) the boundary conformal finite-difference time-domain (BC-FDTD) method, as a high-order solver for electromagnetic particle-in-cell (EM-PIC) simulations. This hybrid technique overcomes the well-known limitation of existing EM-PIC solvers due to their stair-stepping approximation. The proposed hybrid method uses domain decomposion to divide the problem into DG-PSTD regions with coarse structures and BC-FDTD regions with fine structures. As the DG-PSTD method has spectral accuracy and the BC-FDTD method has second-order accuracy, the overall convergence of this EM-PIC solver is better than second order. The team has already developed the most relevant techniques for the pure electromagnetics problem in an existing commercial prototype, Wavenology EM Pack, and has worked on plasma simulations. The proposed 3-D hybrid numerical EM-PIC solver will be integrated into this commercial prototype. It promises to effectively mitigate spurious effects caused by the stair-stepping approximation in the EM-PIC simulation.

Principal Investigator:

Tian Xiao
Senior Scientist
9194191500
tianxiao@wavenology.com

Business Contact:

Tong Li
President
9193606475
Li@wavenology.com
Small Business Information at Submission:

WAVE COMPUTATION TECHNOLOGIES, INC.
1800 Martin Luther King Jr. Parkway, Suite 204 Durham, NC 27707

EIN/Tax ID: 203497098
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No