| Title |
Prediction of the Flow Characteristics of Jet Fan in a Confined Space |
| Authors |
김경환 ; 유준 ; 이재헌 ; 임윤철 ; 오명도 ; 김종필 |
| Keywords |
Axial fan ; 축류팬 ; Enclosed parking garage ; 지하주차장 ; Centerline velocity ; 중심선속도 ; Entrainment ratio ; 유도비 ; Maximum throw ; 최대 도달거리 |
| Abstract |
In this paper, the flow characteristics of an axial fan spraying isothermal compact jet in a confined space were investigated by the experimental methods, the numerical method, and the free jet theory. According to the results, the numerical result and the experimental result are agreed well qualitatively and different quantitatively within ±10% for the centerline velocity, the entrainment ratio, and the maximum throw. However, the free jet theory can reasonably predict the centerline velocity except the entrainment ratio and the maximum throw. In other words, the entrainment ratio and the maximum throw by the free jet theory are hard to estimate the characteristics of jet because of restriction of confined space. |