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Development and Validation of a Novel Synthetic Blade Model for Axial Flow Fans in Unsteady CFD

[+] Author Affiliations
Tommaso Bonanni, Alessandro Corsini, Giovanni Delibra, David Volponi

Sapienza University of Rome, Rome, Italy

Paper No. GT2017-63952, pp. V001T09A005; 11 pages
doi:10.1115/GT2017-63952
From:
  • ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
  • Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5077-0
  • Copyright © 2017 by ASME

abstract

Here we present a Synthetic Blade Model (SBM) for axial flow fans, derived from Actuator Disk and Actuator Line theories. This new approach is able to model the momentum exchange between the fan and the fluid by adding source terms into momentum equation, like an actuator disk. However, the model accounts for the position of the blades, their rotation and the non-uniform distribution of deflection capability in the blade-to-blade passage, like in an actuator line model.

This approach is derived, described and validated against available data on a reversible tunnel and metro fan.

Copyright © 2017 by ASME

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