Development of an Analytical Method for Predicting Flow in a Supersonic Air Ejector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F16%3A00000317" target="_blank" >RIV/46747885:24210/16:00000317 - isvavai.cz</a>
Result on the web
<a href="http://www.epj-conferences.org/articles/epjconf/pdf/2016/09/epjconf_efm2016_02059.pdf" target="_blank" >http://www.epj-conferences.org/articles/epjconf/pdf/2016/09/epjconf_efm2016_02059.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/201611402059" target="_blank" >10.1051/epjconf/201611402059</a>

Result language
angličtina
Original language name
Development of an Analytical Method for Predicting Flow in a Supersonic Air Ejector
Original language description
The article deals with development of an analytical method for predicting flow in an ejector with twelve supersonic nozzles, which are located at the periphery of the mixing chamber of the ejector. Supersonic primary air stream makes the investigation more complex. The secondary air (atmospheric) is sucked in direction of the ejector axis. The shape of the mixing chamber is convergent – divergent and a throat is formed behind the primary nozzles. Each of the primary nozzles can be treated independently so there can be various number of nozzles under operation in the ejector. According to previous investigations, constant pressure mixing is assumed to occur inside a part of the mixing chamber. The method under investigation is considered for isentropic flow in the first approximation and after that the stagnation pressure corrections at the inlets are considered. Furthermore, the decrease in stagnation pressure in the mixing chamber is considered to take losses in the mixing chamber and diffuser into account. The numerical data of the stagnation pressure has been obtained from Ansys Fluent software. In addition, a comparison with previous experimental results is introduced.
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Project
<a href="/en/project/GA14-08888S" target="_blank" >GA14-08888S: Control of flow fields by means of fluid oscillation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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