Sökning: onr:"swepub:oai:DiVA.org:kth-176138" >
Spectral solver for...
-
Vencels, JurisKTH,High Performance Computing and Visualization (HPCViz)
(författare)
Spectral solver for multi-scale plasma physics simulations with dynamically adaptive number of moments
- Artikel/kapitelEngelska2015
Förlag, utgivningsår, omfång ...
-
Elsevier,2015
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:kth-176138
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176138URI
-
https://doi.org/10.1016/j.procs.2015.05.284DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:kon swepub-publicationtype
Anmärkningar
-
QC 20151202
-
A spectral method for kinetic plasma simulations based on the expansion of the velocity distribution function in a variable number of Hermite polynomials is presented. The method is based on a set of non-linear equations that is solved to determine the coefficients of the Hermite expansion satisfying the Vlasov and Poisson equations. In this paper, we first show that this technique combines the fluid and kinetic approaches into one framework. Second, we present an adaptive strategy to increase and decrease the number of Hermite functions dynamically during the simulation. The technique is applied to the Landau damping and two-stream instability test problems. Performance results show 21% and 47% saving of total simulation time in the Landau and two-stream instability test cases, respectively.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Delzanno, G. L.
(författare)
-
Johnson, A.
(författare)
-
Peng, I. BoKTH,High Performance Computing and Visualization (HPCViz)(Swepub:kth)u1hwtn2r
(författare)
-
Laure, ErwinKTH,High Performance Computing and Visualization (HPCViz)(Swepub:kth)u1n9d88r
(författare)
-
Markidis, StefanoKTH,High Performance Computing and Visualization (HPCViz)(Swepub:kth)u1y5heyt
(författare)
-
KTHHigh Performance Computing and Visualization (HPCViz)
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Procedia Computer Science: Elsevier, s. 1148-11571877-0509
Internetlänk
Hitta via bibliotek
Till lärosätets databas