PIV and OH PLIF study of impinging propane-air jet-flames

All-Russian Conference with the School for Young Scientists “Thermophysics and Physical Hydrodynamics –2016”

Kravtsov, Z.D.^1,2 ; Tolstoguzov, Z.D.^1,2 ; Chikishev, L.M.^1,2 ; Dulin, V.M.^1,2

Kutateladze Institute of Thermophysics, Siberian Branch of RAS, 1 Ak. Lavrentyeva Avenue, Novosibirsk

630090, Russia^1

Novosibirsk State University, 2 Pirogova Street, Novosibirsk

630090, Russia^2

关键词: Equivalence ratios;    Flow recirculation;    Impingement surfaces;    Local heat transfer;    Metallic surface;    Particle image velocimetry technique;    Premixed Flame;    Velocity field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/7/072001/pdf
DOI  :  10.1088/1742-6596/754/7/072001

来源: IOP

【 摘 要 】

The paper reports on the study of flow structure of a reacting propane-air jet, issued from contraction nozzle and impinged on flat metallic surface, by using the particle image velocimetry technique. Flows with different nozzle-to-surface distance H/d were studied. The Reynolds number Re was in the range of 500÷5500, equivalence ratio Φ was varied from 0.8 to 1.4. Velocity field was measured for a conical premixed flame for Re = 1500 and Φ = 0.9. A region with flow recirculation was detected between the flame cone and the impingement surface for the case of H/d = 4. This flow feature may result in a reduced local heat transfer.