PIV法测量接近吹熄条件下的H2/CH4涡流火焰

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. 德国LaVision PIV/PLIF粒子成像测速场仪 Imager pro X PIV相机 用于粒子成像测速(PIV)的荧光示踪粒子