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Multi Eulerian PDF Transport Modelling of Turbulent Swirling Flame

[+] Author Affiliations
Abhinav Kapoor, Ashoke De

Indian Institute of Technology Kanpur, Kanpur, UP, India

Rakesh Yadav

ANSYS Fluent India Pvt. Ltd., Pune, MH, India

Paper No. GTINDIA2012-9543, pp. 377-386; 10 pages
doi:10.1115/GTINDIA2012-9543
From:
  • ASME 2012 Gas Turbine India Conference
  • ASME 2012 Gas Turbine India Conference
  • Mumbai, Maharashtra, India, December 1, 2012
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4516-5
  • Copyright © 2012 by ASME

abstract

The paper presents numerical investigation using Multi environmental Eulerian PDF (MEPDF) transport model for turbulence-chemistry interaction. A turbulent flame (SM1) from Sydney swirling burner database is simulated along with two isothermal cases (N29S054, N16S159) of different swirl numbers. MEPDF methodology, a probability density function (PDF) transport modeling, exploits the advantages of the PDF transport equation and is also computationally less expensive compared to popularly used Lagrangian solution approach of PDF transport equation. In the MEPDF approach, the PDF transport equation is represented by direct quadrature method of moments with presumed shape PDF and the closure of micro-mixing is achieved by interaction by exchange with mean (IEM) model. In the current work, the reacting flow results using MEPDF are reported for SM1 flame, which is a part of the database of turbulent reacting flows and widely considered as benchmark test cases for validating turbulent-chemistry interaction models. Initially, the non-reacting flows are simulated to properly choose the boundary conditions, turbulence models as well as the grid; followed by reacting flow calculations. SKE and RKE predictions show good agreement with each other while the other turbulence model exhibit substantially different behavior, especially for non-reacting case. However, RKE model exhibits substantial improvement in the case of reacting flows.

Copyright © 2012 by ASME

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