Evolution of Flame Shape to a Vortex Pair

• Published in: Journal of mechanical science and technology Vol. 15; no. 5; pp. 623 - 629
• Main Author: Rhee, Chang Woo
• Format: Journal Article
• Language: English
• Published: Seoul 대한기계학회 01.05.2001; Korean Society of Mechanical Engineers; Springer Nature B.V
• Subjects: Algorithms; Anchoring; Applied sciences; Combustion. Flame; Computer simulation; Curvature; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Flame propagation; Fluid flow; Mathematical analysis; Propagation; Studies; Theoretical studies; Theoretical studies. Data and constants. Metering; Vortices; Premixed flame; Flame propagation; Modeling; Vortex street; Cusp configuration
• ISSN: 1226-4865; 1738-494X; 1976-3824
• DOI: 10.1007/BF03184378

The PSC (Propagation of Surfaces under Curvature) algorithm is adapted to the simulation of a flame propagation in a premixed medium including the effect of volume expansion across the flame front due to exothermicity. The algorithm is further developed to incorporate the flame anchoring scheme. This methodology is successfully applied to numerically simulate the response of an anchored V-flame to two strong free stream vortices, in accord with experimental observations of a passage of Karman vortex street through a flame. The simulation predicts flame cusping when a strong vortex pair interacts with flame front. In other words, this algorithm handles merging and breaking of the flame front and provides an accurate calculation of the flame curvature which is needed for flame propagation computation and estimation of curvature-dependent flame speeds.[PUBLICATION ABSTRACT]