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Title: SciDAC - Center for Plasma Edge Simulation - General Atomics Support of NYU Collaborations

Technical Report ·
DOI:https://doi.org/10.2172/1034604· OSTI ID:1034604

Methods for implementing Coulomb collisions in particle codes were studied and developed. At first, a lattice-Boltzmann method seemed promising. After considering this in more detail, it was found not to be efficient enough. A method was then sought for implementing collisional effects as changes in particle weights, instead of changes in velocities. Although this may eventually be done, it was decided that a Langevin method would be more straightforward to develop, since it was possible to build on previous work. The rest of the contract period was spent developing the Langevin method, which ultimately resulted in a published paper, in April 2008 [F.L. Hinton, Phys. Plasma 15, 042501 (2008)].

Research Organization:
Energy and Electromagnetic Systems Group, General Atomics, San Diego, California
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
FC02-06ER54847
OSTI ID:
1034604
Report Number(s):
DOE_ER54847 Final Sci.Tech Report; General Atomics Report GA-C26475
Country of Publication:
United States
Language:
English