简介:This paper presents flow field measurements of hydrogen/methane mixtures under near blowout
conditions. Previous high speed visualizations by our group of these flames shows that the blow off
phenomenology varies with 简介:This paper presents flow field measurements of hydrogen/methane mixtures under near blowout
conditions. Previous high speed visualizations by our group of these flames shows that the blow off
phenomenology varies with percentage of hydrogen [1]. This paper further characterizes the flow field of these
flames using particle image velocimetry (PIV). A variety of highly dynamic flame and flow features are observed,
which vary substantially with the H2 levels in the fuel. This variation is apparently due to the enhanced strain
resistance of hydrogen augmented flames and flow dilatation ratio effects upon flow dynamics, particularly vortex
breakdown.详细>