Flame Stretch and the Balance Equation for the Flame Area

  title={Flame Stretch and the Balance Equation for the Flame Area},
  author={S{\'e}bastien Candel and Thierry Poinsot},
  journal={Combustion Science and Technology},
Abstract When a flame propagates in a nonuniform flow it experiences strain and curvature effects. The fractional rate of change of the flame area constitutes the flame stretch. This quantity is often used to describe the structure and extinction mechanisms of turbulent flames. It also occurs in many recent studies of premixed laminar flames. This article provides a unified view of this concept on the basis of a novel derivation of stretch in terms of strain rate and curvature. The flame… 

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