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The Design and Optimization of a New Bluff Body of the Electromagnetic Vortex Flowmeter Based on ISIGHT

[+] Author Affiliations
Xu He, Li Zhen, Xu Yixian, Yu Hongpeng

Harbin Engineering University, Harbin, China

Paper No. DETC2015-46680, pp. V004T09A025; 5 pages
doi:10.1115/DETC2015-46680
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 20th Design for Manufacturing and the Life Cycle Conference; 9th International Conference on Micro- and Nanosystems
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5711-3
  • Copyright © 2015 by ASME

abstract

Bluff body plays a significant role in the electromagnetic vortex flowmeter. More reasonable structure and size of the bluff body can generate more strong and stable vortex shedding for the better sensor measurement. Currently, the optimization for the size of the bluff body is that dispersing the parameter interval and comparing the different size combinations by many researchers. In this method, the result may be the local optimum easily, and the process is same that the simulation is a waste of time for the vortex shedding in the different sizes of the bluff body more or less. However, a new kind of bluff body and an optimization method are proposed in this paper. By means of the NSGA-II algorithm, the size of the bluff body is optimized in the ISIGHT software integrated of Gambit, Fluent and Excel in different Reynolds numbers conditions. At last, we obtained the reasonable size of the bluff body in a wide range of the Reynolds number (2.9×103∼6×104).

Copyright © 2015 by ASME

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