Coanda Synthetic Jet Deflection Apparatus and Control

Paper #:
  • 2011-01-2590

Published:
  • 2011-10-18
DOI:
  • 10.4271/2011-01-2590
Citation:
Trancossi, M. and Dumas, A., "Coanda Synthetic Jet Deflection Apparatus and Control," SAE Technical Paper 2011-01-2590, 2011, doi:10.4271/2011-01-2590.
Pages:
13
Abstract:
This paper presents the theoretic and numerical background of a recent patent about an innovative Coanda Effect application. This innovative jet is designed to enhance the controllability of the system and to encompass static deflection of the fluid jet but especially the dynamic variation of the Coanda deflection with a very low inertia. This innovative nozzle is formerly named H.O.M.E.R., acronym of “High-speed Orienting Momentum with Enhanced Reversibility”. H.O.M.E.R. constitutes an application based on a dual propeller system. It explains how a vector controllable flux can be produced, with the ability to change angular position dynamically as a function of momentum (or velocity) of the two primitive streams. CFD based simulation in a configuration is provided and main calculations are produced to define the control model. Nozzle design guidelines are provided. The proposed system can be used both for aeronautical naval propulsion and industrial applications.
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