| Ion Diode Simulation with a Finite-Volume PIC Approach for the Numerical Solution of the Maxwell-Lorentz System (2007) | |||||||||||||
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| Introduction For experiments with the object of optimization as well as for further developments of ion diodes it is very important to get a deep physical understanding of the fundamental time-dependent phenomena occuring inside those diodes. Elaborate computer simulations are an effective and ideal tool to enhance the knowledge about the complex ion diode physics and, additionally, could force time and reduce costs of further developments. The basic physical observations are modelled mathematically by the MaxwellVlasov equations. However, for numerical calculations it is more convenient to replace the Vlasov equation by its characteristic equations resulting in the Maxwell-Lorentz system. Solving numerically the Maxwell field equations it is important to have an adequate computational grid which covers the relevant diode domain in an appropriate manner. Therefore, we adopt a grid model based on boundary-fitted coordinates (BFC) [10] resulting in quadrilateral meshes with regu | |||||||||||||
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