Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Large eddy simulation of turbulent premixed combustion using a marker field

In English

Författare

  • Christophe Duwig
  • Laszlo Fuchs

Summary, in English

A new laminar flamelet model is presented for Large Eddy Simulation ( LES) of premixed turbulent combustion. The model uses a marker field S+ to capture the flame. Compared to previous work on marker fields, a modification was introduced to simplify the boundary conditions. Although the scalar S+ is smooth in space, it allows describing steep flame fronts. The S+ equation captures the laminar or turbulent flame propagation via a reactive diffusive balance. The present LES model was used to simulate a turbulent premixed flame stabilized behind a sudden expansion. The LES predictions agree well with available experimental data in term of reproducing the time averaged velocity field as well as for capturing the flame dynamics and flame response to a perturbation.

Avdelning/ar

Publiceringsår

2007

Språk

Engelska

Sidor

2135-2152

Publikation/Tidskrift/Serie

Combustion Science and Technology

Volym

179

Issue

10

Dokumenttyp

Artikel i tidskrift

Förlag

Taylor & Francis

Ämne

  • Fluid Mechanics and Acoustics

Nyckelord

  • premixed combustion
  • flamelet model
  • large eddy simulation

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1563-521X