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Some Relations Between the Geometric Parameters and Internal Flow Field Characteristics in Multiblade Fan/Scroll System
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 Title & Authors
Some Relations Between the Geometric Parameters and Internal Flow Field Characteristics in Multiblade Fan/Scroll System
Maeng, Joo-Sung; Yoo, Dal-Hyun; Lee, Kwang-Ho; Park, ln-Gyu;
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 Abstract
This paper describes that the size of inactive zone can be directly applied to design multiblade fan/scroll system. From the experimental studies using a five hole pitot tube and smoke test, it is found that the size of inactive zone has linear relations with the mean velocity of impeller inlet and cut-off angle gives a great influences to the fan efficiency. For the practical design, a function related with geometric parameters(i.e. inner radius, cord length, cut-off clearance and cut-off angle) of fan/scroll system is suggested. By using these formulas, the size and distribution of inactive zone can be predicted without the measurements through the full domain, it can be possible to use them to know the efficiency improvement for new model designed.
 Keywords
Multiblade Fan;Single Suction;Double Suction;Inactive Zone;Cut-Off Angle;
 Language
Korean
 Cited by
1.
반응표면법을 이용한 다익 홴/스크롤 시스템의 설부에 대한 형상 최적화,한석영;맹주성;황영민;

한국자동차공학회논문집, 2003. vol.11. 1, pp.225-231
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