Conversion of the bounce-averaged Fokker-Planck code to conversion form

Technical Report · Mon Jul 01 04:00:00 EDT 1985

OSTI ID:5539418

Rognlien, T D

This report describes a major modification to the bounce-averaged Fokker-Planck code of Cutler, et al. The new version of the code is written in conservation form which results in the line density being conserved exactly except at phase space boundaries. The notation and procedure for writing the code in conservation form closely follows the work of Mirin on the square well code Hybrid II, and Kerbel and McCoy on their bounce-average code CQL. Much of the original code has been preserved, and the input is the same as before; old input files should run on the new version. The major modifications to the code have occurred in subroutines COEF, IADVANCE, and RFTERMS. A new subroutine, FLUX, has been been added to compute the flux across loss boundaries.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5539418
• Report Number(s): UCID-20474; ON: DE85014861
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
COMPUTER CODES
CONSERVATION LAWS
DIFFERENTIAL EQUATIONS
DISTRIBUTION FUNCTIONS
EQUATIONS
FOKKER-PLANCK EQUATION
FUNCTIONS
MAGNETIC FLUX
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA
TRANSPORT THEORY