the flow rate in 640 mm×90 mm water model mold with nozzle submerged depth 130~170 mm and outflow inclination of nozzle -30°~10°was tested by Laser Doppler Velocimetry(LDV)
and its numerical simulation was carried out by FLUENT software. The results showed that increasing nozzle sub- merged depth and outflow inclination of nozzle were available to decrease the fluctuation of liquid free surface
but were not favourable to inclusion upfloating due to increasing impact depth of down stream and mass hot stream downlow.