Otipris : a constant pressure air intake for a mach number up to 0.3

Schmitt, Pierre-Louis (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Haroutunian, Anthony (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Haas, Patrick (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Perraudin, Michel (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland)

This study takes place within the framework of the Optipris project whose goal is to develop high-performance air intakes. Most of the time, air intakes are located in regions of negative pressure coefficients. In these cases, a flow regulation is necessary for any application for which the mass flow is prevalent. For example in the case of air conditioning systems. An intake offering a constant pressure at the inlet offers a great advantage: the fresh air mass flow is not influenced by the vehicule speed. In this project, a fully immerged intake yielding a constant mass flow is developed and validated for the incompressible domain. The development process is based on CFD simulations. Physical models are also built and tested in a subsonic wind tunnel to validate the simulation models. The intake design parameters are evaluated for several applications and pressure coefficients. Similarity criteria are developed. Then, the sensitive design parameters are determined. A design law is obtained from which it is possible to define a constant pressure air intake for given flow rates and pressure coefficients. These data are validated for a range of pressure coefficients from 0 to -0.3 and for the incompressible flow regime.


Type de conférence:
short paper
Faculté:
Ingénierie et Architecture
Ecole:
HEPIA - Genève
Institut:
inSTI - Institut des Sciences et Technologies industrielles
Adresse bibliogr.:
Miami, Florida, USA, 25-28 June 2007
Date:
2007-06
Miami, Florida, USA
25-28 June 2007
Pagination:
22 p.
Veröffentlicht in:
Proceedings of 25th AIAA Applied Aerodynamics Conference, 25-28 June 2007, Miami, Florida, USA
DOI:
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