TY - JOUR
T1 - Deflagration-to-detonation transition in an unconfined space
AU - Koksharov, Andrey
AU - Bykov, Viatcheslav
AU - Kagan, Leonid
AU - Sivashinsky, Gregory
N1 - Publisher Copyright:
© 2018 The Combustion Institute
PY - 2018/9
Y1 - 2018/9
N2 - Whereas deflagration-to-detonation transition in confined systems is a matter of common knowledge, feasibility of the transition in unconfined space is still a matter of controversy. With a freely expanding self-accelerating spherical flame as an example, it is shown that deflagration-to-detonation transition in unconfined gaseous systems is indeed possible provided the flame is large enough. The transition is caused by positive feedback between the accelerating flame and the flame-driven pressure buildup, which results in the thermal runaway when the flame speed reaches a critical level.
AB - Whereas deflagration-to-detonation transition in confined systems is a matter of common knowledge, feasibility of the transition in unconfined space is still a matter of controversy. With a freely expanding self-accelerating spherical flame as an example, it is shown that deflagration-to-detonation transition in unconfined gaseous systems is indeed possible provided the flame is large enough. The transition is caused by positive feedback between the accelerating flame and the flame-driven pressure buildup, which results in the thermal runaway when the flame speed reaches a critical level.
KW - Accelerating flames
KW - Deflagration-to-detonation transition
KW - Thermal runaway of fast flames
UR - http://www.scopus.com/inward/record.url?scp=85049725243&partnerID=8YFLogxK
U2 - 10.1016/j.combustflame.2018.03.006
DO - 10.1016/j.combustflame.2018.03.006
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:85049725243
SN - 0010-2180
VL - 195
SP - 163
EP - 169
JO - Combustion and Flame
JF - Combustion and Flame
ER -