Název:	Particle image velocimetry measurement inside axial air test turbine - Effect of window
Autoři:	Duda, Daniel Jelínek, Tomáš Němec, Martin Uruba, Václav Yanovych, Vitalii Žitek, Pavel
Citace zdrojového dokumentu:	DUDA, D. JELÍNEK, T. NĚMEC, M. URUBA, V. YANOVYCH, V. ŽITEK, P. Particle image velocimetry measurement inside axial air test turbine - Effect of window. In AIP Conference Proceedings. Pilsen: American Institute of Physics, 2021. s. 1-12. ISBN: 978-0-7354-4067-8 , ISSN: 0094-243X
Datum vydání:	2021
Nakladatel:	American Institute of Physics
Typ dokumentu:	konferenční příspěvek ConferenceObject
URI:	2-s2.0-85102781434 http://hdl.handle.net/11025/45600
ISBN:	978-0-7354-4067-8
ISSN:	0094-243X
Klíčová slova v dalším jazyce:	Particle Image Velocimetry;turbine;data evaluation
Abstrakt v dalším jazyce:	We measure the two dimensional instantaneous velocity fields inside an axial turbine by using the technique PIV (Particle Image Velocimetry). The measured plane is located just behind the rotor wheel and it is oriented in axial × tangential direction. We measured a single overloaded regime as well as the nominal one at tip radius. We discuss several technical difficulties appearing during this measurement, mainly with the seeding particles and with the optical access into a massive steel body. The glass dividing the channel past rotor and the empty space of diffusor has been dirtied by large oil droplets condensing at the blades and splashed to this window. We "solved"this trouble by removing the glass, because it anyway divides volumes with same static pressure. Best quality result was obtained without this glass, but its removal changes the geometry. In our contribution we focus to the effect of such rude change to the trustworthiness of the results.
Práva:	© authors
Vyskytuje se v kolekcích:	Konferenční příspěvky / Conference papers (CEV) Konferenční příspěvky / Conference papers (KKE) OBD

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