Experimental Investigation of Annular Air Curtain Domes

摘要

The performance of annular air-curtains as protective barriers against precipitation was investigated experimentally using a 60 cm diameter laboratory model and a 6 m diameter outdoor test facility. Precipitation was simulated by small size glass beads and water droplets. The scaling requirements for the particle-air jet interaction dynamics were reviewed and modified to explicitly include the effects of the simulation material. The effects of Reynolds number, however, are only implicitly included. Based on the results of this study a set of criteria for future tests that could lead to reliable projections for larger scale installations is presented in the form of dimensionless parameters.