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CFD Analysis of Hydro Turbine Performance for Multi-Rotor Configurations

[+] Author Affiliations
Ning Zhang, Anpeng He, Puxuan Li

McNeese State University, Lake Charles, LA

Brent Ballard

Gulfstream Technologies Inc., Olney, TX

Paper No. IMECE2011-64104, pp. 879-884; 6 pages
doi:10.1115/IMECE2011-64104
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5492-1
  • Copyright © 2011 by ASME

abstract

Flow in a special designed multi-rotor hydro turbine was simulated using the immersed-boundary method. Thanks to the immersed-boundary method, the complicated flow-driven motion of the turbine components can be simulated. The Smagorinski-Lilly turbulence model was implemented in order to simulate the practical high-Reynolds-number cases. The rotor rotating speeds (RPM’s) of cases with different multirotor configurations were compared to obtain the optimal designs. The configurations studied include the size and position of the flow blocker, as well as the number of rotors. Detailed flow characteristics around the turbine was revealed from the simulation results.

Copyright © 2011 by ASME

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