Block structured adaptive mesh and time refinement for hybrid, hyperbolic + N-body systems
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Date
2007-11-10Type
- Journal Article
ETH Bibliography
yes
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Abstract
We present a new numerical algorithm for the solution of coupled collisional and collisionless systems, based on the block structured adaptive mesh and time refinement strategy (AMR). We describe the issues associated with the discretization of the system equations and the synchronization of the numerical solution on the hierarchy of grid levels. We implement a code based on a higher order, conservative and directionally unsplit Godunov’s method for hydrodynamics; a symmetric, time centered modified symplectic scheme for collisionless component; and a multilevel, multigrid relaxation algorithm for the elliptic equation coupling the two components. Numerical results that illustrate the accuracy of the code and the relative merit of various implemented schemes are also presented. Show more
Publication status
publishedExternal links
Journal / series
Journal of Computational PhysicsVolume
Pages / Article No.
Publisher
ElsevierSubject
Higher-order Godunov methods; Adaptive mesh refinement; Elliptic methods; Particle-in-cell methodsOrganisational unit
03613 - Lilly, Simon (emeritus) / Lilly, Simon (emeritus)
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ETH Bibliography
yes
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