Applied Math Seminar: On transverse instability in the 2+2D Vlasov-Poisson system
Event Type:
Seminar
Speaker:
Denis Silantyev
Event Date:
Monday, April 18, 2016 - 3:30pm
Location:
SMLC 356
Audience:
General PublicFaculty/StaffStudentsAlumni/Friends
Event Description:
Abstract:
Transverse instability could be viewed as initial stage of electron plasma waves (EPWs) filamentation. We performed direct 2+2D Vlasov-Poisson simulations of collisionless plasma to systematicly study the growth rates of oblique modes of finite-amplitude EPW depending on it's amplitude, wavenumber, angle of the oblique mode wavevector relative to the EPW's wavevector and the configuration of the trapped electrons in the EPW. Simulation results are compared to the theoretical predictions of simplified models.
I will also discuss why modeling collisionless plasma is numerically challenging task considering simple examples of linear and nonlinear Landau damping.
Tea, Coffee, Cookies and conversation at 3:05pm in the lounge.
Event Contact
Contact Name: Daniel Appelo
Contact Phone: (505) 277-3310
Contact Email: appelo@math.unm.edu
