Crossflow fan에 의한 컴퓨터 케이스 내부의 유동특성에 관한 연구
A Study on the Flow Characteristics in Computer Case by Crossflow Fan
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초록
The purpose of this study is to find out a flow characteristics when a crossflow-fan is installed inside the computer case and to provide information about the preliminary data of cooling efficiency of CPU and a flow inside and outside of a computer case. Under the condition of operating the fan inside the experimental duct we changed the position of a installation of the slot, and the experiment measured with PIV and the results are as follows. Under the influence of the crossflow-fan installed to the air discharging side, mean velocity between 35 t0 45 on the Point 80 of the Slot 0,2,3 of the case increased and it influences discharging the air inside of the computer case. On the left-upper end, which isn't directly influenced by the suction-discharging fan installed inside the PC, a flow occurs caused by vortex due to the Sirocco-Fan and Slot installed on the center of the right side. We can see that a flow distribution increases when the Sirocco-Fan operates and a whirl appears stronger between the slot and the suction fan. It is thought that this phenomenon is influenced by a flow while it is on the way of entering from the suction-fan and going out to the discharging-fan.
Abstract
The purpose of this study is to find out a flow characteristics when a crossflow-fan is installed inside the computer case and to provide information about the preliminary data of cooling efficiency of CPU and a flow inside and outside of a computer case. Under the condition of operating the fan inside the experimental duct we changed the position of a installation of the slot, and the experiment measured with PIV and the results are as follows. Under the influence of the crossflow-fan installed to the air discharging side, mean velocity between 35 t0 45 on the Point 80 of the Slot 0,2,3 of the case increased and it influences discharging the air inside of the computer case. On the left-upper end, which isn't directly influenced by the suction-discharging fan installed inside the PC, a flow occurs caused by vortex due to the Sirocco-Fan and Slot installed on the center of the right side. We can see that a flow distribution increases when the Sirocco-Fan operates and a whirl appears stronger between the slot and the suction fan. It is thought that this phenomenon is influenced by a flow while it is on the way of entering from the suction-fan and going out to the discharging-fan.
참고문헌 (6)
- "Visualization society of Japan. Handbook of Flow Visualization" (1986), Asakura Book Company
- Merzkirch, W., "Flow Visualization" (1987), Academic Press Inc.
- Yang, W. J., "Handbook of Flow Visualization" (1989), Hemisphere Pub.co.
- G.K.Lee, "Basic Study on the Instantaneous Velocity Field Measurement Using PIV", 석사, pp.1995
- 백종희, "새 삼단계 추적법을 이용한 PIV기법에 의한 후향계단 주변 난류 유동장 측정에 관한 실험적 연구", 석사, pp.1999
- 이행남, "PIV와 CFD를 사용한 분기시작 닥트 유동특성연구", KSAE, 1, pp.pp421~427 (2001)