Browse > Article

Experimental and Numerical Studies on the Flow Characteristics of a Fan-Sink  

Lee Kyoung-Yong (Thermal & Fluid System Team, Korea Institute of Industrial Technology)
Choi Young-Seok (Thermal & Fluid System Team, Korea Institute of Industrial Technology)
Yun Jae-Ho (Thermal & Fluid System Team, Korea Institute of Industrial Technology)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.18, no.3, 2006 , pp. 225-230 More about this Journal
Abstract
The overall performance and local flow fields of the fan, heat sink, and fan-sink were experimentally and numerically studied to investigate the flow characteristics of a fan-sink. The flow resistance of the heat sink was measured by small fan tester based on AMCA standards and compared with the CFD results to select available cooling fan for the fan-sink. The nonuniform velocity profile behind the fan outlet was shown by the flow visualization. The effects of nonuniform velocities on the performance of heat sink were discussed. To validate the commercial CFD code CFX-5.6, the predicted performance curve was compared with that of fan testing. The local flow fields of the fan-sink were analyzed by CFD results. MFR (multiple frame of reference) was used as a computational model combining rotating fan and stationary heat sink. Through the CFD results of the fan-sink, the flow patterns behind the fan outlet influenced the flow resistance and overall performance of the heat sink.
Keywords
Fan-sink; Heat sink; Axial fan; Performance test; CFD;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kim, J. H, 2004, A study on the heat transfer characteristics for layered heat sinks, Ph.D. Thesis, HanYang Univ., pp.1-106
2 Cho,J. S., Han, S. H. and Han, C. H., 2002, A study on the design of an fan-sink considering the flow fields behind the fan outlet, Transactions of the KSME, B, Vol. 26, No. 8, pp. 1055-1061   DOI
3 ANSI/AMCA 210-99, ANSI/ASHRAE 511999, 1999, Laboratory Methods of Testing Fans for Aerodynamic Performance Rating, AMCA, ASHREA
4 Choi, Y. S. and Kim, J. K, 2003, Fan performance test with automatic control and measurement, KFMA Annual Meeting, pp.373-378
5 Kang, S. W., Park, H. S., Kim, Y. K., Jeon, C. S. and Lee, C. D., 1998, Thermal design for electrical devices using heat sinks, Proc. of the KSME, B, pp. 207-212