Spectral solver for multi-scale plasma physics simulations with dynamically adaptive number of moments

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Fältnamn	Indikatorer	Metadata
000		03211naa a2200565 4500
001		oai:DiVA.org:kth-176138
003		SwePub
008		151102s2015 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1761382 URI
024	7	a https://doi.org/10.1016/j.procs.2015.05.2842 DOI
040		a (SwePub)kth
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a kon2 swepub-publicationtype
100	1	a Vencels, Jurisu KTH,High Performance Computing and Visualization (HPCViz)4 aut0 (Swepub:kth)u1172vfo
245	1 0	a Spectral solver for multi-scale plasma physics simulations with dynamically adaptive number of moments
264	1	b Elsevier,c 2015
338		a print2 rdacarrier
500		a QC 20151202
520		a 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.
650	7	a TEKNIK OCH TEKNOLOGIERx Elektroteknik och elektronik0 (SwePub)2022 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Electrical Engineering, Electronic Engineering, Information Engineering0 (SwePub)2022 hsv//eng
653		a Fluid-kinetic coupling
653		a Plasma simulations
653		a Spectral methods
653		a Distribution functions
653		a Kinetics
653		a Plasma simulation
653		a Spectroscopy
653		a Vlasov equation
653		a Adaptive strategy
653		a Hermite expansion
653		a Hermite functions
653		a Hermite polynomials
653		a Kinetic approach
653		a Kinetic coupling
653		a Two stream instability
653		a Polynomials
700	1	a Delzanno, G. L.4 aut
700	1	a Johnson, A.4 aut
700	1	a Peng, I. Bou KTH,High Performance Computing and Visualization (HPCViz)4 aut0 (Swepub:kth)u1hwtn2r
700	1	a Laure, Erwinu KTH,High Performance Computing and Visualization (HPCViz)4 aut0 (Swepub:kth)u1n9d88r
700	1	a Markidis, Stefanou KTH,High Performance Computing and Visualization (HPCViz)4 aut0 (Swepub:kth)u1y5heyt
710	2	a KTHb High Performance Computing and Visualization (HPCViz)4 org
773	0	t Procedia Computer Scienced : Elsevierg , s. 1148-1157q <1148-1157x 1877-0509
856	4	u https://doi.org/10.1016/j.procs.2015.05.284y Fulltext
856	4	u https://doi.org/10.1016/j.procs.2015.05.284
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176138
856	4 8	u https://doi.org/10.1016/j.procs.2015.05.284

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By the author/editor: Vencels, Juris; Delzanno, G. L.; Johnson, A.; Peng, I. Bo; Laure, Erwin; Markidis, Stefan ...

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ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Electrical Engin ...

Articles in the publication: Procedia Compute ...

By the university: Royal Institute of Technology

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