Improved Correlation for Blowout of Bluff Body Stabilized Flames

Huelskamp, Bethany; Kiel, Barry; Lynch, Amy; Kostka, Stanislav; Gokulakrishnan, P.; Klassen, Michael S.

doi:10.2514/6.2011-66

Cited by 6 publications

(1 citation statement)

References 15 publications

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“…Huelskamp and Kiel [8] summed up and developed the blowout correlation of Da number on the basis of many earlier data relations. Lieuwen et al [7] also summed up a lot of experiment data and analyzed local extinction of the flame near blowout.…”

Section: Introductionmentioning

confidence: 99%

A numerical investigation on the mechanism of bluff-body lean blowout

Gong

Huang

Wang

et al. 2013

2013 International Conference on Materials for Renewable Energy and Environment

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In order to control the NOx pollutant emissions and reduce fuel consumption, lean combustion becomes an important subject. A bluff body is used in this paper to study the flame-holding mechanism by numerical simulation. After the validation of the numerical method, 6 cases were simulated with different inlet velocity of the premixed mixture of kerosene vapor and air. The responses of reaction rate near blowout to inlet velocity variation were analyzed. The results show that with the increase of the inlet flow velocity, the anchoring points move upstream to the bluff body, while nearly no movement along the cross direction, and the flame will finally be blown out if the anchoring points are almost attached to the bluff body. It is implied that the quenching effect caused by heat transfer between flame fronts and bluff body is the key factor of flame blowout. Keywords-bluff body numerical simulation anchoring point flame holding lean blowout

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Section: Introductionmentioning

confidence: 99%