旋流器出口结构对旋流火焰的影响研究

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旋流器出口结构对旋流火焰的影响研究. / Yu, Sen Bin; Liu, Xiao; Zheng, Hong Tao.

In: Tuijin Jishu/Journal of Propulsion Technology, Vol. 40, No. 6, 01.06.2019, p. 1324-1331.

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Yu, Sen Bin ; Liu, Xiao ; Zheng, Hong Tao. / 旋流器出口结构对旋流火焰的影响研究. In: Tuijin Jishu/Journal of Propulsion Technology. 2019 ; Vol. 40, No. 6. pp. 1324-1331.

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TY - JOUR

T1 - 旋流器出口结构对旋流火焰的影响研究

AU - Yu, Sen Bin

AU - Liu, Xiao

AU - Zheng, Hong Tao

PY - 2019/6/1

Y1 - 2019/6/1

N2 - To deeply understand the non-premixed swirl flame, the effects of two burner exit geometries on the non-premixed swirl flames modes were studied by performing OH-PLIF, PIV measurements and coupling LES with PDF combustion model numerically. The results showed that the stochastic PDF method can predict the swirl flow fields and detailed flame structures including local extinction. Two different quarl geometries played significant roles on the flow fields thus leading to the local extinction and lift-off. The recirculation zone is smaller in the non-quarl case which causes a more serious quenching state. Meanwhile, at the stoichiometric equivalence ratio, the OH and CH2O distributions in the no-quarl exit were broader than the quarl exit at the low temperature regime. This indicated that many low-temperature reactions took places, providing beneficial conditions for the lift-off flame stabilization.

AB - To deeply understand the non-premixed swirl flame, the effects of two burner exit geometries on the non-premixed swirl flames modes were studied by performing OH-PLIF, PIV measurements and coupling LES with PDF combustion model numerically. The results showed that the stochastic PDF method can predict the swirl flow fields and detailed flame structures including local extinction. Two different quarl geometries played significant roles on the flow fields thus leading to the local extinction and lift-off. The recirculation zone is smaller in the non-quarl case which causes a more serious quenching state. Meanwhile, at the stoichiometric equivalence ratio, the OH and CH2O distributions in the no-quarl exit were broader than the quarl exit at the low temperature regime. This indicated that many low-temperature reactions took places, providing beneficial conditions for the lift-off flame stabilization.

KW - LES-PDF

KW - Local quenching

KW - Quarl structure geometry

KW - Swirl flame

UR - http://www.scopus.com/inward/record.url?scp=85071247066&partnerID=8YFLogxK

U2 - 10.13675/j.cnki.tjjs.180311

DO - 10.13675/j.cnki.tjjs.180311

M3 - Artikel i vetenskaplig tidskrift

AN - SCOPUS:85071247066

VL - 40

SP - 1324

EP - 1331

JO - Tuijin Jishu/Journal of Propulsion Technology

JF - Tuijin Jishu/Journal of Propulsion Technology

SN - 1001-4055

IS - 6

ER -