DKE: a fast numerical solver for the 3-D relativistic bounce-averaged electron drift kinetic equation
A new original code for solving the 3-D relativistic and bounce averaged electron drift kinetic equation is presented. It is designed for the current drive problem in tokamak with an arbitrary magnetic equilibrium. This tool allows self consistent calculations of the bootstrap current in presence of other external current sources. RF current drive for arbitrary type of waves may be used. Several moments of the electron distribution function are determined, like the exact and effective fractions of trapped electrons, the plasma current, absorbed RF power, runaway and magnetic ripple loss rates and non thermic bremsstrahlung. Advanced numerical techniques have been used to make it the first fully implicit (reverse time) 3-D solver, particularly well designed for implementations in a chain of code for realistic current drive calculations in high beta(p) plasmas. All the details of the physics background and the numerical scheme are presented, as well as some examples to illustrate main code capabilities. Several important numerical points are addressed concerning code stability and potential numerical and physical limitations.
Bibliographic Reference: France, Association Euratom-CEA sur la Fusion, CEA Cadarache, EUR-CEA-FC-1736, 2004, 393 pp
Availability: Available from Association EURATOM-CEA, Departement de Recherches sur la Fusion Controlee, CEA Cadarache, F-13108 St Paul-Lez-Durance, France Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail: email@example.com
Record Number: 200417847 / Last updated on: 2004-12-17
Original language: en
Available languages: en