Extinction of Lean Propane/ Air Turbulent Premixed Flames in a Stagnation Point Flow.

Thermal Radiation Properties of Turbulent Lean Premixed Methane Air Flames

Thermal radiation properties of turbulent premixed flames have received little attention in the past perhaps because of the lower radiative heat loss compared with that for non-premixed flames. However, the high-temperature sensitivity of NO kinetics and the importance of radiation in near-limit laminar premixed flames provide fundamental reasons for studies of radiation properties of turbulent...

The Effects of Platinum on Propane/Air Stagnation Flow Flames

Effects of platinum stagnation surface on the lean extinction limits of premixed methane/air flames at moderate surface temperatures

0010-2180/$ see front matter 2010 The Combust doi:10.1016/j.combustflame.2010.08.002 ⇑ Corresponding author. Fax: +1 734 647 3170. E-mail address: [email protected] (J.T. Wiswall A stagnation flow reactor was used to study the effects of platinum on the lean flammability limits of atmospheric pressure premixed methane/air flames at moderate stagnation surface temperatures. Experimental and com...

Extinction Limits of Premixed Combustion Assisted by Catalytic Reaction in a Stagnation-Point Flow

Motivated by the potential use of catalytic materials in micro-combustor application, the primary scope of this study is to investigate the lean extinction characteristics of premixed flames in the presence of catalytic reaction. In particular, the effects of mixture dilution on the lean flammability limit are examined by adopting a stagnation-point flow system with a methane/air mixture over a...

Equivalence Ratio Effects in Turbulent, Premixed Methane-air Flames

Turbulent methane flames exhibit a change in Markstein number as the equivalence ratio changes. In this paper, we demonstrate how these changes in Markstein number are related to shifts in the chemistry and transport. We focus on the analysis of simulations of two-dimensional premixed turbulent methane flames at equivalence ratios φ=0.55 and φ=1.00 computed using the GRI-Mech 3.0 mechanism. The...