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http://dx.doi.org/10.5050/KSNVN.2004.14.11.1107

Design of Automotive Engine Cooling Fan and Study on Noise Reduction through Modification of System  

김병주 (한국과학기술원 대학원 항공우주공학과)
강상규 (한국과학기술원 대학원 항공우주공학과)
김규영 (한국과학기술원 대학원 항공우주공학과)
이재영 ((주)두원공조 기술연구소)
이덕호 ((주)두원공조 기술연구소)
신동수 ((주)두원공조 기술연구소)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.14, no.11, 2004 , pp. 1107-1114 More about this Journal
Abstract
Axial fans are widely used for automotive engine cooling device due to their ability to produce high flow rate to keep engine cool. At the same time, the noise generated by these fans causes one of the most serious problems. Especially, engine cooling fan noise in idle condition of a car is noticeable. Therefore. the high efficient and low-noise fan is seriously needed. When a new fan system is designed, system resistance and non-uniform inflow are the key factors to get the high performance and low noise fan system. In this study, aerodynamic and acoustic calculations are carried out on the automotive cooling fan and system. Effects of various design parameters are studied through the free wake analysis and experiments. Better performance and noise characteristic are obtained for the new design fan using the methodology. Furthermore through the modification of the fan system geometry parameters, the fan system produce more flow rate and become less noisy.
Keywords
Axial Fan; Nonuniform Inflow; Broadband Noise; Discrete Tonal Noise;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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