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A New Level-Set Approach for Premixed Flame

[+] Author Affiliations
Nobuyuki Oshima

Hokkaido University, Sapporo, Japan

Paper No. DETC2009-87223, pp. 295-300; 6 pages
doi:10.1115/DETC2009-87223
From:
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4899-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME

abstract

This paper proposes a new level-set approach for premixed flame by considering a finite thickness of flame. A previously used G-equation is modified to treat spatial distributions of flame speed and diffusion effect in reaction region, which balance to keep a steady flame shape. Under uniform and non-uniform density condition, two model equations are newly proposed, both of which give a hyperbolic tangent profile to a steady flame shape in their theoretical solutions. A few examinations in one-dimensional and two-dimensional simulation are performed to validate a suitability of the proposed new approach for time-dependent simulation of flame propagation.

Copyright © 2009 by ASME
Topics: Flames

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