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수치해석기법을 이용한 노트북 소형 냉각팬의 유동 및 소음 특성에 관한 연구
전완호(W.H. Jeon),임태균(T.G. Lim),御法川?(Gaku Minorikawa),宮原雅晴(Masaharu Miyahara) 한국전산유체공학회 2013 한국전산유체공학회 학술대회논문집 Vol.2013 No.10
In recent years, the size of a notebook gets thinner and smaller. Its inner size makes problems in cooling fan performance, system installation condition, and so on. In this study, a small turbofan was installed in the very narrow gap like a notebook system, in order to generate similar condition to a real product. Experiments were performed to measure the fans performance and the flow and noise characteristics, results were compared with computational ones. CFD simulation predicted P-Q curve under about 5% error in high flowrate and its trend agreed with experiment data over the flow range. The noise was measured at a distance of 100 mm from a rotation axis direction of an impeller. The measured data corresponded well with computational ones of broadband and BPF noise analyzed by a commercial program(FlowNoise).