Discretization error dominance over subgrid-terms in Large Eddy Simulation of Compressible Shear Layers in 2D

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Abstract

Second- and fourth-order-accurate spatial discretization methods give rise to discretization errors which are large than the corresponding subgrid terms in large eddy simulation of compressible shear layers in 2D, if the ratio between the filter width and the grid spacing is close to one. Even if an exact representation for the subgrid-scale contributions is assumed, large eddy simulation is accurate only if this ratio is sufficiently larger than one. In that regime fourth-order methods are more accurate than second-order methods. An analysis of the data obtained from two-dimensional direct numerical simulations of compressible shear layers substantiates these assertions.
LanguageUndefined
Pages785-790
Number of pages6
JournalCommunications in applied numerical methods
Volume10
Issue number10
DOIs
Publication statusPublished - 1994

Keywords

  • METIS-140895
  • IR-71088

Cite this

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title = "Discretization error dominance over subgrid-terms in Large Eddy Simulation of Compressible Shear Layers in 2D",
abstract = "Second- and fourth-order-accurate spatial discretization methods give rise to discretization errors which are large than the corresponding subgrid terms in large eddy simulation of compressible shear layers in 2D, if the ratio between the filter width and the grid spacing is close to one. Even if an exact representation for the subgrid-scale contributions is assumed, large eddy simulation is accurate only if this ratio is sufficiently larger than one. In that regime fourth-order methods are more accurate than second-order methods. An analysis of the data obtained from two-dimensional direct numerical simulations of compressible shear layers substantiates these assertions.",
keywords = "METIS-140895, IR-71088",
author = "A.W. Vreman and Geurts, {Bernardus J.} and Kuerten, {Johannes G.M.}",
year = "1994",
doi = "10.1002/cnm.1640101004",
language = "Undefined",
volume = "10",
pages = "785--790",
journal = "Communications in applied numerical methods",
issn = "0748-8025",
publisher = "John Wiley and Sons Inc.",
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}

Discretization error dominance over subgrid-terms in Large Eddy Simulation of Compressible Shear Layers in 2D. / Vreman, A.W.; Geurts, Bernardus J.; Kuerten, Johannes G.M.

In: Communications in applied numerical methods, Vol. 10, No. 10, 1994, p. 785-790.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Discretization error dominance over subgrid-terms in Large Eddy Simulation of Compressible Shear Layers in 2D

AU - Vreman, A.W.

AU - Geurts, Bernardus J.

AU - Kuerten, Johannes G.M.

PY - 1994

Y1 - 1994

N2 - Second- and fourth-order-accurate spatial discretization methods give rise to discretization errors which are large than the corresponding subgrid terms in large eddy simulation of compressible shear layers in 2D, if the ratio between the filter width and the grid spacing is close to one. Even if an exact representation for the subgrid-scale contributions is assumed, large eddy simulation is accurate only if this ratio is sufficiently larger than one. In that regime fourth-order methods are more accurate than second-order methods. An analysis of the data obtained from two-dimensional direct numerical simulations of compressible shear layers substantiates these assertions.

AB - Second- and fourth-order-accurate spatial discretization methods give rise to discretization errors which are large than the corresponding subgrid terms in large eddy simulation of compressible shear layers in 2D, if the ratio between the filter width and the grid spacing is close to one. Even if an exact representation for the subgrid-scale contributions is assumed, large eddy simulation is accurate only if this ratio is sufficiently larger than one. In that regime fourth-order methods are more accurate than second-order methods. An analysis of the data obtained from two-dimensional direct numerical simulations of compressible shear layers substantiates these assertions.

KW - METIS-140895

KW - IR-71088

U2 - 10.1002/cnm.1640101004

DO - 10.1002/cnm.1640101004

M3 - Article

VL - 10

SP - 785

EP - 790

JO - Communications in applied numerical methods

T2 - Communications in applied numerical methods

JF - Communications in applied numerical methods

SN - 0748-8025

IS - 10

ER -