SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:lup.lub.lu.se:79f6ab81-6532-4bbd-9b8c-6b4407e1c975"
 

Sökning: onr:"swepub:oai:lup.lub.lu.se:79f6ab81-6532-4bbd-9b8c-6b4407e1c975" > Challenging modelin...

  • Fiorina, B.CNRS, Laboratoire EM2C, CentraleSupelec, France (författare)

Challenging modeling strategies for LES of non-adiabatic turbulent stratified combustion

  • Artikel/kapitelEngelska2015

Förlag, utgivningsår, omfång ...

  • Elsevier BV,2015

Nummerbeteckningar

  • LIBRIS-ID:oai:lup.lub.lu.se:79f6ab81-6532-4bbd-9b8c-6b4407e1c975
  • https://lup.lub.lu.se/record/8389384URI
  • https://doi.org/10.1016/j.combustflame.2015.07.036DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174712URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • QC 20151130
  • Five different low-Mach large eddy simulations are compared to the turbulent stratified flame experiments conducted at the Technical University of Darmstadt (TUD). The simulations were contributed by TUD, the Institute for Combustion Technology (ITV) at Aachen, Lund University (LUND), the EM2C laboratory at Ecole Centrale Paris, and the University of Duisburg-Essen (UDE). Combustion is modeled by a premixed flamelet tabulation with local flame thickening (TUD), a premixed flamelet progress variable approach coupled to a level set method (ITV), a 4-steps mechanism combined with implicit LES (LUND), the F-TACLES model that is based on filtered premixed flamelet tabulation (EM2C), and a flame surface density approach (UDE). An extensive comparison of simulation and experimental data is presented for the first two moments of velocity, temperature, mixture fraction, and major species mass fractions. The importance of heat-losses was assessed by comparing simulations for adiabatic and isothermal boundary conditions at the burner walls. The adiabatic computations predict a flame anchored on the burner lip, while the non-adiabatic simulations show a flame lift-off of one half pilot diameter and a better agreement with experimental evidence for temperature and species concentrations. Most simulations agree on the mean flame brush position, but it is evident that subgrid turbulence must be considered to achieve the correct turbulent flame speed. Qualitative comparisons of instantaneous snapshots of the flame show differences in the size of the resolved flame wrinkling patterns. These differences are (a) caused by the influence of the LES combustion model on the flame dynamics and (b) by the different simulation strategies in terms of grid, inlet condition and numerics. The simulations were conducted with approaches optimized for different objectives, for example low computational cost, or in another case, short turn around. (C) 2015 The Combustion Institute. Published by Elsevier Inc. All rights reserved.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Mercier, R.CNRS, Laboratoire EM2C, CentraleSupelec, France (författare)
  • Kuenne, G.TU Darmstadt, Institute of Energy and Power Plant Technology, Germany. TU Darmstadt, Darmstadt Graduate School of Energy Science and Engineering, Germany (författare)
  • Ketelheun, A.TU Darmstadt, Institute of Energy and Power Plant Technology, Germany. TU Darmstadt, Darmstadt Graduate School of Energy Science and Engineering, Germany (författare)
  • Avdic, A.TU Darmstadt, Institute of Energy and Power Plant Technology, Germany. TU Darmstadt, Graduate School of Computational Engineering, Germany,TU Darmstadt, Institute of Energy and Power Plant Technology, Germany. TU Darmstadt, Darmstadt Graduate School of Energy Science and Engineering, Germany,University of Duisburg-Essen, Institute for Combustion and Gasdynamics (IVG), Chair for Fluid Dynamics, Germany (författare)
  • Janicka, J.TU Darmstadt, Institute of Energy and Power Plant Technology, Germany. TU Darmstadt, Darmstadt Graduate School of Energy Science and Engineering, Germany (författare)
  • Geyer, D.Darmstadt University of Applied Sciences, Thermodynamik, Germany (författare)
  • Dreizler, A. (författare)
  • Alenius, EmmaLund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Lund University, Sweden(Swepub:kth)u1k9ejuw (författare)
  • Duwig, ChristopheKTH,KTH Royal Institute of Technology,Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Mekanik,Lund University, Sweden(Swepub:kth)u1guz8kz (författare)
  • Trisjono, P.RWTH Aachen University, Institute for Combustion Technology, Germany (författare)
  • Kleinheinz, K.RWTH Aachen University, Institute for Combustion Technology, Germany (författare)
  • Kang, S.Sogang University, Department of Mechanical Engineering, Republic of Korea (författare)
  • Pitsch, H.RWTH Aachen University, Institute for Combustion Technology, Germany (författare)
  • Proch, F.University of Duisburg-Essen, Institute for Combustion and Gasdynamics (IVG), Chair for Fluid Dynamics, Germany (författare)
  • Marincola, F. CavalloUniversity of Duisburg-Essen, Institute for Combustion and Gasdynamics (IVG), Chair for Fluid Dynamics, Germany (författare)
  • Kempf, A. (författare)
  • CNRS, Laboratoire EM2C, CentraleSupelec, FranceTU Darmstadt, Institute of Energy and Power Plant Technology, Germany. TU Darmstadt, Darmstadt Graduate School of Energy Science and Engineering, Germany (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Combustion and Flame: Elsevier BV162:11, s. 4264-42820010-21801556-2921

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy