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Manuscript Title: Integration of Vlasov equation by a fast Fourier Eulerian code. | ||

Authors: B. Izrar, A. Ghizzo, P. Bertrand, E. Fijalkow, M.R. Feix | ||

Program title: VLFF | ||

Catalogue identifier: ABHD_v1_0Distribution format: gz | ||

Journal reference: Comput. Phys. Commun. 52(1989)375 | ||

Programming language: Fortran. | ||

Computer: SIEMENS VP 200. | ||

Operating system: MVS, CRAY OS. | ||

RAM: 2860K words | ||

Word size: 64 | ||

Peripherals: graph plotter. | ||

Keywords: Vlasov-poisson system, Plasma physics, Two stream instability, Bgk equilibrium, Collisionless plasma. | ||

Classification: 19.3. | ||

Nature of problem:We look for a solution of the one dimensional Vlasov-Poisson system for a non collisional spatially periodic plasma, starting from an initial condition, here a two stream distribution function or an n holes BGK equilibrium, slightly perturbed. | ||

Solution method:The evolution of Vlasov Poisson System is numerically solved by replacing the continuous self consistent electric field E(x,t) by a Dirac comb. The program outputs are the distribution function, the density, the electric field and its Fourier components and energies (electrical, kinetic and total). | ||

Restrictions:The code presented is limited to one dimension, and the sole field is the self consistent electrostatic field. An external field can be added. | ||

Running time:The last run on the VP 200 need 7.01 sec for 120 time steps and 256 * 156 grid points with a physical meaning (the total number of points is 256*256, so that the execution time is 1.6 micro sec per grid point per time step. |

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