Mathematical Model of a Constructal Coanda Effect Nozzle

This paper analyses the ACHEON Coanda effect nozzle for aircraft propulsion, based on the dynamic equilibrium of two jet streams. The ACHEON concept, and, in particular, the HOMER nozzle, which is its main component, are presented, together with the literature milestones from which the idea original...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Applied Fluid Mechanics 2016-01, Vol.9 (6), p.2813-2822
Main Authors: Trancossi, Michele, Stewart, Jill, Subash, Maharshi, Angeli, Diego
Format: Article
Language:English
Subjects:
Aircraft propulsion
Coanda effect
Coanda effect
Fluid dynamic adhesion
Dual stream
Mathematical model
Constructal law
Computational fluid dynamics
Fluid flow
Incompressible flow
Jet streams (meteorology)
Mathematical analysis
Mathematical models
Nozzles
Stems
Streams
Systems analysis
Two dimensional analysis
Two dimensional models
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper analyses the ACHEON Coanda effect nozzle for aircraft propulsion, based on the dynamic equilibrium of two jet streams. The ACHEON concept, and, in particular, the HOMER nozzle, which is its main component, are presented, together with the literature milestones from which the idea originally stems. A sub-system analysis inspired by the principles of Constructal Theory is presented for the current architecture. A mathematical model of a 2D case of the system is developed, focusing on the combined effect of the mixing of the two streams and the Coanda adhesion over a convex surface. A validation of the model is also reported, based on 2D CFD analyses, under the hypothesis of incompressible flow. Results highlight that, in spite of its relative simplicity, the model produces accurate results.
ISSN:1735-3572
1735-3645
DOI:10.29252/jafm.09.06.23508