A Vlasov-Fokker-Planck code for high energy density physics

Journal Article · Wed Jul 20 04:00:00 EDT 2011 · Journal of Computational Physics

DOI:https://doi.org/10.1016/j.jcp.2011.04.034· OSTI ID:21592600

Tzoufras, M ^[1]; Bell, A R ^[1]; Norreys, P A ^[2]; Tsung, F S ^[3]

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1. Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU (United Kingdom)
2. Central Laser Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX (United Kingdom)
3. Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)

OSHUN is a parallel relativistic 2D3P Vlasov-Fokker-Planck code, developed primarily to study electron transport and instabilities pertaining to laser-produced-including laser-fusion-plasmas. It incorporates a spherical harmonic expansion of the electron distribution function, where the number of terms is an input parameter that determines the angular resolution in momentum-space. The algorithm employs the full 3D electromagnetic fields and a rigorous linearized Fokker-Planck collision operator. The numerical scheme conserves energy and number density. This enables simulations for plasmas with temperatures from MeV down to a few eV and densities from less than critical to more than solid. Kinetic phenomena as well as electron transport physics can be recovered accurately and efficiently.

• OSTI ID: 21592600
• Journal Information: Journal of Computational Physics, Journal Name: Journal of Computational Physics Journal Issue: 17 Vol. 230; ISSN JCTPAH; ISSN 0021-9991
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
97 MATHEMATICS AND COMPUTING
ALGORITHMS
BOLTZMANN-VLASOV EQUATION
CHARGED-PARTICLE TRANSPORT
COLLISIONS
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC FIELDS
ELECTRONS
ELEMENTARY PARTICLES
ENERGY DENSITY
ENERGY RANGE
EQUATIONS
EV RANGE
FERMIONS
FOKKER-PLANCK EQUATION
FUNCTIONS
LASER-PRODUCED PLASMA
LASERS
LEPTONS
MATHEMATICAL LOGIC
MATHEMATICAL SOLUTIONS
MEV RANGE
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
PLASMA SIMULATION
RADIATION TRANSPORT
RELATIVISTIC RANGE
SIMULATION
SPHERICAL HARMONICS