Radial jet velocity distribution of two closely opposed jets

The radial jet velocity distribution of two opposed jets has been studied by hot-wire anemometer(HWA). The results show that normalized radial velocities are similar in various radial sections when r>2D and that radial velocity profiles can be described by a Gaussian distribution model. Normalized radial jet velocity at impinging plane first increases, and then decreases with the increase of normalized radial distance. Normalized radial jet velocity is independent of nozzle diameter, nozzle separation and exit velocity and proportional to dimensionless radial distance before it reaches the peak. And the normalized radial jet velocity is inversely proportional to the 1.33th power of dimensionless radial distance after it reaches the peak. The maximum radial jet velocity at impinging plane is proportional to exit velocity, and inversely proportional to the 0.551th power of dimensionless nozzle separation. The position of the maximum radial jet velocity increases with nozzle diameter. At L/D<1, the position of the maximum radial jet velocity increases with nozzle separation, and at L/D >1, it remains constant.