Computation of the Base Flow for Axisymmetric Nacelle Configurations

971466

05/01/1997

Event
General, Corporate & Regional Aviation Meeting & Exposition
Authors Abstract
Content
A flow modeling method has been developed to analyze the flow in the annular base (rear-facing surface) of a circular engine nacelle flying at subsonic speed but with a supersonic exhaust jet. Real values of exhaust gas properties and temperature are included. Potential flows of the air and gas streams are computed for the flow past a separated wake. Then a viscous jet mixing is superimposed on this inviscid solution. Conservation of mass, momentum and energy is achieved by mutiple iterations. Despite the iterations, the wake flow field is computed with modest computer requirements.
Meta TagsDetails
DOI
https://doi.org/10.4271/971466
Pages
12
Citation
Baik, D., Zumwalt, G., and Hoffmann, K., "Computation of the Base Flow for Axisymmetric Nacelle Configurations," SAE Technical Paper 971466, 1997, https://doi.org/10.4271/971466.
Additional Details
Publisher
Published
May 1, 1997
Product Code
971466
Content Type
Technical Paper
Language
English