Large-eddy simulation of turbulent spray combustion in a subscale aircraft jet engine combustor-predictions of no and soot concentrations

Hideki Moriai, Ryoichi Kurose, Hiroaki Watanabe, Yutaka Yano, Fumiteru Akamatsu, Satoru Komori

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Large-eddy simulation (LES) is applied to turbulent spray combustion fields in a subscale (1/2) aircraft jet engine combustor with an air-blast type swirl fuel nozzle and validity is examined by comparing with measurements. In the LES, Jet-A is used as liquid fuel, and individual droplet motion is tracked in a Lagrangian manner with a parcel model. As a turbulent combustion model, the extended flamelet/progress-variable approach, in which heat transfer between droplets and ambient gas including radiation and heat loss from walls can be taken into account, is employed. A detailed chemistry mechanism of Jet-A with 1537 reactions and 274 chemical species is used. The radiative heat transfer is computed by the discrete ordinate (DO) method. The equivalence ratio ranges from 0.91 to 1.29. The comparisons of the predicted droplet velocity and size, gaseous temperature, NO, and soot emissions with the measurements show that the present LES is capable of capturing the general features of the turbulent spray combustion fields in the subscale (1/2) aircraft jet engine combustor.

Original languageEnglish
Article number091503
JournalJournal of Engineering for Gas Turbines and Power
Volume135
Issue number9
DOIs
Publication statusPublished - Aug 14 2013
Externally publishedYes

Fingerprint

Jet engines
Large eddy simulation
Soot
Combustors
Aircraft
Heat transfer
Liquid fuels
Heat losses
Nozzles
Radiation
Air
Gases
Temperature

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Fuel Technology
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

Cite this

Large-eddy simulation of turbulent spray combustion in a subscale aircraft jet engine combustor-predictions of no and soot concentrations. / Moriai, Hideki; Kurose, Ryoichi; Watanabe, Hiroaki; Yano, Yutaka; Akamatsu, Fumiteru; Komori, Satoru.

In: Journal of Engineering for Gas Turbines and Power, Vol. 135, No. 9, 091503, 14.08.2013.

Research output: Contribution to journalArticle

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