Large eddy simulation of hydrogen combustion in supersonic flows using an Eulerian stochastic fields method

Gong, ChengLund 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 (author)

An Eulerian Monte-Carlo approach, the so-called Eulerian stochastic fields (ESF) method is implemented and evaluated for simulation of non-premixed hydrogen/air combustion in supersonic flows. The ESF method is integrated into a compressible flow large eddy simulation (LES) solver, and validated on a supersonic combustor with a strut as flame-holder. Comparison with experimental data and with results from a well-stirred reactor (WSR) model demonstrates the advantage of the LES-ESF method for simulation of local-extinction and re-ignition phenomena. The hydrogen/air flame structure and the stabilization of the combustion process in the supersonic combustor are analysed based on the present LES-ESF method. Oscillation of the recirculation zones is found to be the dominant mechanism for the local-extinction/re-ignition and the flame stabilization under the present condition.

TEKNIK OCH TEKNOLOGIER Maskinteknik Strömningsmekanik och akustik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Fluid Mechanics and Acoustics hsv//eng
Eulerian stochastic fields
Large eddy simulation
Local-extinction
Re-ignition
Supersonic
Transported probability density function

Jangi, MehdiMurdoch University(Swepub:lu)ener-mij (author)
Bai, Xue SongLund 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(Swepub:lu)vok-xba (author)
Liang, Jian HanNational University of Defense Technology (author)
Sun, Ming BoNational University of Defense Technology (author)
StrömningsteknikInstitutionen för energivetenskaper (creator_code:org_t)

In:International Journal of Hydrogen Energy: Elsevier BV42:2, s. 1264-12750360-3199

By the author/editor: Gong, Cheng; Jangi, Mehdi; Bai, Xue Song; Liang, Jian Han; Sun, Ming Bo

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Fluid Mechanics ...

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.