Effect of Inlet Geometry on Fan Performance and Inlet Flow Fields in a Semi-opened Axial Fan

Liu, Pin; Shiomi, Norimasa; Kinoue, Yoichi; Setoguchi, Toshiaki; Jin, Ying-Zi

doi:http://dx.doi.org/10.5293/IJFMS.2014.7.2.060

추천

검색

질문

자료유형: 학술저널

저자정보: Liu, Pin Shiomi, Norimasa Kinoue, Yoichi Setoguchi, Toshiaki Jin, Ying-Zi

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.7 No.2

발행연도: 2014.6

수록면: 60 - 67 (8page)

DOI: http://dx.doi.org/10.5293/IJFMS.2014.7.2.060

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

In order to clarify the effect of inlet bellmouth size of semi-opened type axial fan on its performance and flow fields around rotor, fan test and flow field measurements using hotwire anemometer were carried out for 6 kinds of bellmouth size. As results of fan test, the shaft power curve hardly changed, even if the bellmouth size changed. On the other hand, the pressure-rise near best efficiency point became small with the bellmouth size decreasing. Therefore, the value of maximum efficiency became small as the bellmouth size decreased. As results of flow field measurements at fan inlet, the main flow region with large meridional velocity existed near blade tip when the bellmouth size was large. As bellmouth size became smaller, the meridional velocity at fan inlet became smaller and the one at outside of blade tip became larger. As results of flow field measurements at fan outlet, the main flow region existed near rotor hub side.

#inlet geometry #measurement #semi-opened #Fan

참고문헌 (8)

참고문헌 신청

1. [학술지(정기간행물)] - Toru Shigemitsu / 2013 / Internal Flow Condition of High Power Contra-Rotating Small-Sized Axial Fan / Internation Journal of Fluid Machinery and Systems 6 (1) : 25 ~ 32

2. [학술지(정기간행물)] - N. Shiomi / 2011 / Vortex Features in a Half-ducted Axial Fan with Large Bellmouth (Effect of Tip Clearance) / International Journal of Fluid Machinery and Systems 4 (3) : 307 ~ 316

3. [학술지(정기간행물)] - L. Zhu / 2013 / Numerical and Experimental Study on Aerodynamic Performance of Small Axial Flow Fan with Splitter Blades / Journal of Thermal Science 22 (4) : 333 ~ 339

4. [학술지(정기간행물)] - S. Sasaki / 2012 / An Experimental and Numerical Study on Wake Vortex Noise of a Low Speed Propeller Fan / Open Journal of Fluid Dynamics 2012 : 290 ~ 296

5. [학술지(정기간행물)] - T. Shigemitsu / 2010 / Performance and Flow Condition of Small-Sized Axial Fan and Adoption of Contra-Rotating Rotors / Journal of Thermal Science 19 (1) : 1 ~ 6