Article Dans Une Revue Combustion Science and Technology Année : 2005

Head-on Quenching of transient laminar flame : heat flux and quenching distance measurements

J. Sotton
B. Boust
S.A. Labuda
  • Fonction : Auteur

Résumé

This presents results of quenching distance and heat flux measurements during the head-on quenching of transient laminar stoichiometric methane/air flame in the pressure range 0.05-1.7 MPa. the results of direct visualization have been used to measure the quenching distance and to prove the relationship relating the quenching distance and heat flux to the wall over the global combustion reaction rate. It is shown that quenching distance decreases from 0.43 to 0.016 mm with pressure rise ofrom 0.05 to 1.7 Mpa. The maximum wall heat flux increases non linearly from 0.35 ti 2.3 MW/m2 with pressure rise from 0.05 ti 1.7 MPa. The dimensionless value of the heat flux depends only slightly on the pressure and decreases from o.3 to 0.2 with rise of pressure in this pressure range. Flame-wall interaction time is about constant and equal to 0.15-0.155 mas in all ranges of pressure variation.

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Dates et versions

hal-00118373 , version 1 (05-12-2006)

Identifiants

Citer

J. Sotton, B. Boust, S.A. Labuda, M. Bellenoue. Head-on Quenching of transient laminar flame : heat flux and quenching distance measurements. Combustion Science and Technology, 2005, 177, pp.1305-1322. ⟨10.1080/001022009590950485⟩. ⟨hal-00118373⟩
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