GENERALIZED ELECTRON FLUID EQUATIONS IN THE PRESENCE OF LASER IRRADIATION

Generalized fluid models have become increasingly popular for incorpor ating kinetic effects in hydrodynamic studies of laser-plasma interact ions. However, their transport coefficients depend on the source of th e thermal perturbation, which leads to difficulties, since both invers e-bremsstrahlung heating and pdV work drive these perturbations. Treat ing these sources separately using a model with two energy equations i s proposed. Tested against electron Fokker-Planck simulations, this mo del reproduces both Landau damping of ion-sound waves and the correct response to inverse bremsstrahlung.