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이상환(Sang Hwan Lee),강태인(Tae In Kang),안철오(Chel O Ahn),서인수(In Soo Seo),이창준(Chang Joon Lee) 한국유체기계학회 2005 유체기계 연구개발 발표회 논문집 Vol.- No.-
In this study, we analyzed the three dimensional unsteady flow field around the motor cooling fan using the unsteady lifting surface theory. We obtained the flow rate for various geometries of fan from the calculated results of velocity field. For the data of design parameter and rotating speed(rpm) of the fan, we can predict the flow rate of the motor cooling fan with thin thickness through numerical analysis without the experimental data of the free stream velocity which is a boundary condition of flow field. the numerical results showed the flow rate within 10% of error in comparison with experimental results. The radial fans, which are often used as internal motor fan were also investigated with the same procedure.