소화노즐의 분무특성에 대한 설계 변수 영향의 수치해석적 연구

Numerical Study on the Effects of Design Parameters on the Spray Characteristics of Fire Suppression Nozzles

Numerical investigation has been performed to simulate the spray characteristics in mist-spray fire suppression nozzles in sense of design parameters. Two key shape factors in nozzle orifices. i.e. diameter and length are chosen as simulation parameters. Commercial softwares, FLUENT and FDS with the proper modelings were applied as numerical tools. Main performances of nozzles, i.e., K-factors, spray angles, droplet size, jet velocities and fire suppression time are analyzed for each parameter to find optimal design conditions.