Structure of laminar flamelets in premixed turbulent flames

✍ Scribed by Paul A. Libby; Forman A. Williams

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 933 KB
• Volume: 44
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(82)90079-7

✦ Synopsis

The method of activation energy asymptotics is used to describe the behavior and characteristics of adiabatic laminar flamelets involving counterflowing reactants and products as they arise in premixed turbulent flames. For moderate and low rates of strain the results are analogous to those obtained in earlier applications of the method, namely, there are reaction surfaces that maintain a diffusive-reactive balance in the fin'st approximation. For high rates of strain we identify an extinction regime in which there is a reaction zone having a diffusive-convective-reactive balance and which thus requires a modification of the usual treatment. The asymptotic analyses are used to give the variation of the rate of product creation over the entire range of Damktthler numbers.