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Parameter Optimization and Experimental Research of Small Axial Fans With Splitting Blades

[+] Author Affiliations
Chu Wei, Jin Yingzi, Lin Peifeng, Li Yi, Wu Wenjun

Zhejiang Sci-Tech University, Hangzhou, China

Paper No. AJKFluids2015-09477, pp. V01AT09A015; 6 pages
  • ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
  • Volume 1A: Symposia, Part 2
  • Seoul, South Korea, July 26–31, 2015
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5721-3
  • Copyright © 2015 by KSME


A kind of small axial fans with splitting blades are designed in this work. The application of numerical simulation enables a detailed description of the effect of installation angle, chord length, circumferential position of splitting blades on the fan performance and internal flow field. With a target of static characteristics and sound pressure level, a multi-objective optimization function is established in combination of orthogonal test and entropy law, so that the installation angle and chord length and circumferential position of splitting blades could be optimized. The results show that: 27.7 degree should be a proper installation angle and the chord length can be not too long or too short and appropriate bias to pressure side is a optimum circumferential position for splitting blades. The results of numerical simulation and experimental research show that the performance of the optimized is obviously better that of the original.

Copyright © 2015 by KSME
Topics: Fans , Optimization , Blades



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