Cristin-resultat-ID: 1599829
Sist endret: 18. april 2020, 16:24
NVI-rapporteringsår: 2018
Resultat
Vitenskapelig artikkel
2018

Three-dimensional Linear Eddy Modeling of a Turbulent Lifted Hydrogen Jet Flame in a Vitiated Co-flow

Bidragsytere:
  • Fredrik Grøvdal
  • Sigurd Sannan
  • Jyh-Yuan Chen
  • Alan R Kerstein og
  • Terese Løvås

Tidsskrift

Flow Turbulence and Combustion
ISSN 1386-6184
e-ISSN 1573-1987
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2018
Volum: 101
Hefte: 4
Sider: 993 - 1007
Open Access

Importkilder

Scopus-ID: 2-s2.0-85050257131

Beskrivelse Beskrivelse

Tittel

Three-dimensional Linear Eddy Modeling of a Turbulent Lifted Hydrogen Jet Flame in a Vitiated Co-flow

Sammendrag

A new methodology for modeling and simulation of reactive flows is reported in which a 3D formulation of the Linear Eddy Model (LEM3D) is used as a post-processing tool for an initial RANS simulation. In this hybrid approach, LEM3D complements RANS with unsteadiness and small-scale resolution in a computationally efficient manner. To demonstrate the RANS-LEM3D model, the hybrid model is applied to a lifted turbulent N2-diluted hydrogen jet flame in a vitiated co-flow of hot products from lean H2/air combustion. In the present modeling approach, mean-flow information from RANS provides model input to LEM3D, which returns the scalar statistics needed for more accurate mixing and reaction calculations. Flame lift-off heights and flame structure are investigated in detail, along with other characteristics not available from RANS alone, such as the instantaneous and detailed species profiles and small-scale mixing.

Bidragsytere

Fredrik Grøvdal

  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet

Sigurd Sannan

  • Tilknyttet:
    Forfatter
    ved Termisk energi ved SINTEF Energi AS

Jyh-Yuan Chen

  • Tilknyttet:
    Forfatter
    ved University of California, Berkeley

Alan R Kerstein

  • Tilknyttet:
    Forfatter
    ved USA

Terese Løvås

  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
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