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Finite Volume Time Domain modelling of microwave breakdown and plasma formation in a metallic aperture
Authors:Adnane Hamiaz  Rudy Klein  Xavier Ferrieres  Olivier Pascal  Jean-Pierre Boeuf  Jean-Rene Poirier
Affiliation:1. Université de Toulouse, UPS, INPT, LAPLACE (Laboratoire Plasma et Conversion d?Energie), 118 route de Narbonne, F-31062 Toulouse cedex 9, France;2. CNRS, LAPLACE, F-31062 Toulouse, France;3. ONERA – The French Aerospace Lab., F-31055 Toulouse, France;1. Instituto Politécnico, Universidade do Estado do Rio de Janeiro, 28625-570 Nova Friburgo, RJ, Brazil;2. Instituto de Matemática e Estatística, Universidade Federal Fluminense, 24020-14 Niterói, Rio de Janeiro, Brazil;3. Thermodynamics and Optimization Group (TOG), Brazil;1. Instituto Politécnico, Universidade do Estado do Rio de Janeiro, 28625-570 Nova Friburgo, RJ, Brazil;2. Escola de Engenharia Industrial Metalúrgica de Volta Redonda, Universidade Federal Fluminense, 27255-125 Volta Redonda, RJ, Brazil;3. Instituto de Engenharia e Geociências, Universidade Federal do Oeste do Pará, 68135-110 Santarém, PA, Brazil;4. Thermodynamics and Optimization Group (TOG), Brazil;1. Enhanced Oil Recovery (EOR) Research Centre, IOR/EOR Research Institute, Shiraz University, Shiraz, Iran;2. Institut für Verfahrenstechnik und Umwelttechnik, Technische Universität Dresden, Germany;1. ONERA, The French Aerospace Lab, 92320 Châtillon Cedex, France;2. UPMC Univ Paris 06, UMR 7598, Laboratoire Jacques-Louis Lions, F-75005 Paris, France;3. CMAP-CNRS UMR 7641, Ecole Polytechnique, 91128 Palaiseau Cedex, France
Abstract:The modelling of plasma formation during microwave breakdown is a difficult task because of the strong non-linear coupling between Maxwell?s equations and plasma equations, and of the large plasma density gradients that form during breakdown. An original Finite Volume Time Domain (FVTD) method has been developed to solve Maxwell?s equations coupled with a simplified fluid plasma model and is described in this paper. This method is illustrated with the study of the shielding of a metallic aperture by the plasma generated by an incident high power electromagnetic wave. Typical results obtained with the FVTD method for this shielding problem are shown.
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