Lee, SR Na, Y Kim, JS 2024-01-21T08:05:31Z 2024-01-21T08:05:31Z 2021-09-03 2003-11 1226-4865 https://pubs.kist.re.kr/handle/201004/138127 The method of flame hole dynamics is demonstrated as a mean to simulate turbulent flame extinction. The core of the flame hole dynamics involves derivation of a random walk mapping for the flame holes, created by local quenching, between burning and quenched states provided that the dynamic characteristics of flame edges is known. Then, the random walk mapping is projected to a background turbulent field. The numerical simulations are carried out with further simplifications of flame string and unconditioned scalar dissipation rate. The simulation results show how the chance of partial quenching is influenced by the crossover scalar dissipation rate. Finally, a list of improvements, necessary to achieve more realistic turbulent flame quenching simulation, are discussed. English KOREAN SOC MECHANICAL ENGINEERS EDGE-FLAMES PROPAGATION Application of the flame hole dynamics to a diffusion flame in channel flow Article 10.1007/BF02983608 1 KSME INTERNATIONAL JOURNAL, v.17, no.11, pp.1775 - 1783 KSME INTERNATIONAL JOURNAL 17 11 1775 1783 scie scopus kci ART000882559 000186622000020 2-s2.0-2942694517 Engineering, Mechanical Engineering Article EDGE-FLAMES PROPAGATION turbulent flame extinction flame edge flame hole dynamics random walk partial quenching