Symmetry-preserving momentum remap for ALE hydrodynamics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00206863" target="_blank" >RIV/68407700:21340/13:00206863 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/1742-6596/454/1/012003/" target="_blank" >http://iopscience.iop.org/1742-6596/454/1/012003/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/454/1/012003" target="_blank" >10.1088/1742-6596/454/1/012003</a>

Result language
angličtina
Original language name
Symmetry-preserving momentum remap for ALE hydrodynamics
Original language description
In this paper, a symmetry-preserving remapping algorithm for vectors respecting their local bounds by components and in magnitude is presented. First, description of the Vector Image Polygon (VIP) limiter for a piece-wise linear velocity reconstruction is presented. Numerical fluxes obtained from this reconstruction lead to symmetry- and bounds- preserving remap of momentum for staggered Arbitrary Lagrangian-Eulerian (ALE) hydrodynamical methods. A novel bounds definition for vectors and corresponding modification of the VIP limiter is introduced, which fixes undershoots in a radial velocity component for polar meshes. Comparison with standard scalar-based limiters is given. Cyclic remapping is performed to numerically verify properties of the methods.
Czech name
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Czech description
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Project
<a href="/en/project/GAP205%2F10%2F0814" target="_blank" >GAP205/10/0814: Laser-produced plasma-wall interaction</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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