0
Research Papers: Gas Turbines: Combustion, Fuels, and Emissions

Development and Application of a Transported Probability Density Function Method on Unstructured Three-Dimensional Grids for the Prediction of Nitric Oxides

[+] Author and Article Information
Andreas Fiolitakis

e-mail: andreas.fiolitakis@dlr.de

Peter Ess

e-mail: peter.ess@dlr.de
Institute of Combustion Technology,
German Aerospace Center (DLR),
Pfaffenwaldring 38-40,
Stuttgart 70569, Germany

Peter Gerlinger

Institute of Combustion Technology
for Aerospace Engineering,
University of Stuttgart,
Pfaffenwaldring 38-40,
Stuttgart 70569, Germany
e-mail: peter.gerlinger@dlr.de

Manfred Aigner

Institute of Combustion Technology,
German Aerospace Center (DLR),
Pfaffenwaldring 38-40,
Stuttgart 70569, Germany
e-mail: manfred.aigner@dlr.de

Contributed by the Combustion and Fuels Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received August 30, 2013; final manuscript received September 3, 2013; published online November 14, 2013. Editor: David Wisler.

J. Eng. Gas Turbines Power 136(3), 031506 (Nov 14, 2013) (10 pages) Paper No: GTP-13-1333; doi: 10.1115/1.4025729 History: Received August 30, 2013; Revised September 03, 2013

The present work explores the capability of the transported probability density function (PDF) method to predict nitric oxide (NO) formation in turbulent combustion. To this end a hybrid finite-volume/Lagrangian Monte Carlo method is implemented into the THETA code of the German Aerospace Center (DLR). In this hybrid approach the transported PDF method governs the evolution of the thermochemical variables, whereas the flow field evolution is computed with a Reynolds-averaged Navier–Stokes (RANS) method. The method is used to compute a turbulent hydrogen-air flame and a methane-air flame and computational results are compared to experimental data. In order to assess the advantages of the transported PDF method, the flame computations are repeated with the “laminar chemistry” approach as well as with an “assumed PDF” method, which are both computationally less expensive. The present study reveals that the transported PDF method provides the highest accuracy in predicting the overall flame structure and nitric oxide formation.

FIGURES IN THIS ARTICLE
<>
Copyright © 2014 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 1

Boundary conditions for flame calculations

Grahic Jump Location
Fig. 2

Coarse mesh resolution at the fuel nozzle exit

Grahic Jump Location
Fig. 3

Transported PDF computations of hydrogen-air flame with different reaction mechanisms

Grahic Jump Location
Fig. 4

Computations of hydrogen-air flame with different combustion models

Grahic Jump Location
Fig. 5

Axial profiles of Favre averages in methane-air flame

Grahic Jump Location
Fig. 6

Radial profiles of Favre averages in methane-air flame

Grahic Jump Location
Fig. 7

Temperature rms along flame axis in methane-air flame (case 2)

Grahic Jump Location
Fig. 8

Comparison of different combustion model results in methane-air flame

Grahic Jump Location
Fig. 9

Radial profiles of Favre averages in methane-air flame with different combustion models

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In