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Iterative Solution Method for an Implicit Orbit Averaged Particle-in-Cell Model
Online Presentations | 18 Aug 2015 | Contributor(s):: Benjamin Sturdevant
Present kinetic simulations of turbulence in magnetized plasmas employ models from gyrokinetic theory, which is based on a number of ordering assumptions used to reduce the Vlasov-Maxwell system to eliminate high frequency phenomena. Recently, a second order accurate, implicit particle-in-cell...
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Optimal Order Multigrid Preconditioners for Linear Systems Arising in the Semismooth Newton Method Solution Process of a Class of Control-Constrained Problems
Online Presentations | 18 Aug 2015 | Contributor(s):: Andrei Draganescu
In this work we present a new multigrid preconditioner for the linear systems arising in the semismooth Newton method solution process of certain control-constrained, quadratic distributed optimal control problems. Using a piecewise constant discretization of the control space, each semismooth...
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[Illinois] Accurate Solutions Of Extremely Large Integral-Equation Problems Involving Complex Metamaterial Structures
Online Presentations | 29 Dec 2014 | Contributor(s):: Levent Gurel