Error analysis of supersonic air-to-air ejector schlieren pictures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F12%3A%230002674" target="_blank" >RIV/46747885:24210/12:#0002674 - isvavai.cz</a>
Alternative codes found
RIV/46747885:24210/13:#0005556
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Error analysis of supersonic air-to-air ejector schlieren pictures
Original language description
The scope of this article is focused on general analysis of errors and uncertainties possibly arising from CFD-to-schlieren pictures matching. Analysis is based on classic analytical equations. These are firstly evaluated with the presumption of constantdensity gradient along the ray course. In other words, the deflection of light-ray caused by density gradient is negligible in compare to the cross size of constant gradient area. It is the aim of this work to determine, whether this presumption is applicable in case of supersonic air-to-air ejector. The colour and black and white schlieren pictures are carried out and compared to CFD results. Simulations had covered various eddy viscosities. Computed pressure gradients are transformed into deflectionangles and further to ray displacement. Resulting computed light- ray deflection is matched to experimental results.
Czech name
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Czech description
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Project
<a href="/en/project/GAP101%2F10%2F1709" target="_blank" >GAP101/10/1709: Nozzles and diffusers for ejectors</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
International Conference EXPERIMENTAL FLUID MECHANICS 2012 Conference Proceedings
ISBN
978-80-7372-912-7
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
345-350
Publisher name
Technical university of Liberec
Place of publication
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Event location
Hradec Králové
Event date
Jan 1, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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