Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Proceedings of the 13th International Symposium on Particle Image Velocimetry |
| Herausgeber/-innen | Christian J. Kähler, Rainer Hain, Sven Scharnowksi, Thomas Fuchs |
| Seitenumfang | 10 |
| ISBN (elektronisch) | 978-3-943207-39-2 |
| Publikationsstatus | Veröffentlicht - 2019 |
| Veranstaltung | 13th International Symposium on Particle Image Velocimetry - Munich, Deutschland Dauer: 22 Juli 2019 → 24 Juli 2019 |
Abstract
such flow environments possible.
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Proceedings of the 13th International Symposium on Particle Image Velocimetry . Hrsg. / Christian J. Kähler; Rainer Hain; Sven Scharnowksi; Thomas Fuchs. 2019.
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung
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TY - GEN
T1 - Stereoscopic PTV measurements in the housing/rotor cavity of a shrouded turbine rotor
AU - Hain, Rainer
AU - Fuchs, Thomas
AU - Wein, Lars Carsten
AU - Kluge, Tim
AU - Seume, Jörg Reinhart
AU - Kähler, Christian
PY - 2019
Y1 - 2019
N2 - Particle Image Velocimetry and Particle Tracking Velocimetry are well established measurement techniques for the acquisition of velocity fields in transparent fluids. Due to the scalability, these techniques are applicable for micro- and macro-flows as well as for low- and high-speed flows. For macroscopic measurements in air typically liquid fluids are used for the generation of seeding particles. Often fluids such as vegetable oils or DEHS are atomized in Laskin nozzle generators resulting in particles with a mean diameter on the order of 1 μm. Similar sized tracer particles are generated using fog generators operated with water-glycol mixtures. In many flows, particles with such a diameter and density show a nearly perfect following behavior. However, if high accelerations occur, the path-lines of the particles deviate from the stream-lines of the flow. This deviation may affect the measurement accuracy and particles can deposit on walls, and thus the optical access might be impaired. In this paper we will analyze the contamination problems occurring in a high-speed cavity flow and we will present solutions that make high-quality PIV/PTV measurements insuch flow environments possible.
AB - Particle Image Velocimetry and Particle Tracking Velocimetry are well established measurement techniques for the acquisition of velocity fields in transparent fluids. Due to the scalability, these techniques are applicable for micro- and macro-flows as well as for low- and high-speed flows. For macroscopic measurements in air typically liquid fluids are used for the generation of seeding particles. Often fluids such as vegetable oils or DEHS are atomized in Laskin nozzle generators resulting in particles with a mean diameter on the order of 1 μm. Similar sized tracer particles are generated using fog generators operated with water-glycol mixtures. In many flows, particles with such a diameter and density show a nearly perfect following behavior. However, if high accelerations occur, the path-lines of the particles deviate from the stream-lines of the flow. This deviation may affect the measurement accuracy and particles can deposit on walls, and thus the optical access might be impaired. In this paper we will analyze the contamination problems occurring in a high-speed cavity flow and we will present solutions that make high-quality PIV/PTV measurements insuch flow environments possible.
M3 - Conference contribution
BT - Proceedings of the 13th International Symposium on Particle Image Velocimetry
A2 - Kähler, Christian J.
A2 - Hain, Rainer
A2 - Scharnowksi, Sven
A2 - Fuchs, Thomas
T2 - 13th International Symposium on Particle Image Velocimetry
Y2 - 22 July 2019 through 24 July 2019
ER -