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Numerical and Experimental Analyses of the Aerodynamic Characteristics of a Counter Rotating Axial Fan
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 Title & Authors
Numerical and Experimental Analyses of the Aerodynamic Characteristics of a Counter Rotating Axial Fan
Cho, Jin-Soo; Won, Yu-Phil; Lee, Moon-Cheol;
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 Abstract
A study was done on the numerical and experimental analyses of the aerodynamic characteristics of a counter rotating axial fan. The numerical analysis uses the frequency domain panel method developed for the aerodynamic analysis of interacting rotating systems, which is based on the unsteady lifting surface panel method. Each stage of interaction involves the solution of an isolated rotor, the interaction being done through the Fourier transform of the induced velocity field. Numerical results showed good agreements with other experimental data for single and counter rotating propeller systems. And they were compared with the experimental results of the counter rotating axial fan studied in the present paper. The performance test was carried out based on the Korean Standard (KS B 6311). It was focused on the relative efficiency increase of a counter rotating system for a single rotating one, and effects of the axial distance between the front and rear rotors on overall fan performances were investigated. As a result, it was shown that the counter rotating axial fan has the efficiency 14% higher than the single rotating one at peak efficiency points.
 Keywords
Counter Rotating Axial Fan;Single Rotating Axial Fan;Frequency Domain Panel Method;
 Language
Korean
 Cited by
1.
축류회전차에서 팁간극의 변화를 고려한 유동특성에 관한 연구,이명호;

한국마린엔지니어링학회지, 2002. vol.26. 3, pp.353-361
2.
엇회전식 축류 펜의 공력 특성에 관한 실험적 연구,최진용;조이상;조진수;원유필;

대한기계학회논문집B, 2002. vol.26. 2, pp.201-210 crossref(new window)
3.
냉장고용 소형 축류홴의 통계학적 3차원 난류유동 특성에 관한 연구,김장권;

대한기계학회논문집B, 2001. vol.25. 6, pp.819-828 crossref(new window)
4.
홴 후방 유동장을 고려한 홴싱크 설계에 관한 연구,조진수;한승호;한철희;

대한기계학회논문집B, 2002. vol.26. 8, pp.1055-1061 crossref(new window)
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