The measurement of transient two-dimensional profiles of velocity and fuelconcentration over liquids

We recently developed two different optical techniques in order to simultan eously measure transient two-dimensional profiles of velocity, temperature, and fuel concentration that were generated by a spreading flame over liqui d fuels. One technique employs a particle-track system combined with a lase r-sheet system (LSPT) and a high-speed camera, while the other technique em ploys dual wavelength holographic interferometry (DWHI). The LSPT system re vealed transient two dimensional profiles of flame-induced flow while DWHI revealed two-dimensional profiles of fuel concentration over liquids. In th is paper we present a series of velocity profiles for a pulsating flame spr ead over 1-propanol and concentration profiles for gaseous 1-propanol deter mined with LSPT and DWHI, respectively.