Importance of a second entrance in a test cell
Journal Title: INCAS BULLETIN - Year 2018, Vol 10, Issue 1
Abstract
The present paper studies the influence of a secondary intake and its effect on the jet stability. Three configurations have been analyzed: one with the secondary intake closed, the second having a convergent nozzle after the augmentor tube and the third case using a perforated augmentor tube. The secondary intake is used to supply air for cooling the exhaust system. Numerical simulation was realized using the k-є model, which is the most used CFD turbulence model, especially for turbulent flow conditions. The results obtained showed that secondary intake influences the jet stability, because of the pressure differences from the two zones. To resolve this closing the secondary intake is the best option available.
Authors and Affiliations
Oana DUMITRESCU, George Bogdan GHERMAN, Ionut PORUMBEL
Keywords
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- EP ID EP294897
- DOI 10.13111/2066-8201.2018.10.1.7
- Views 77
- Downloads 0
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