Experimental and theoretical investigation of gas flowfield on a rotating stream tray

The rotating stream tray is a new type of column tray operating in the spray regime, through which the gas stream rotates. Combinations, performances and applications of the rotating stream tray are introduced briefly. On a 300 mm diameter rotating stream tray, the gas flowfield was investigated with a DANTEC 55X laser Doppler anemometer. The data of velocity distributions in tangential, axial and radial directions on sections at different heights above the tray were obtained. A numerical model for computing the turbulence flow on the tray was also proposed. The predicted results of three-dimensional velocities and pressures were found to be in qualitative agreement with experimental data. The main gas flow features are clarified.