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Assessment of Powder-based Seeding Materials for PIV Applications in Transonic, Supersonic and Reacting Flows
Voges, Melanie and Klinner, Joachim and Willert, Chris and Beversdorff, Manfred and Schodl, Richard (2007) Assessment of Powder-based Seeding Materials for PIV Applications in Transonic, Supersonic and Reacting Flows. In: PIV'07. 7th International Symposium on Particle Image Velocimetry, 2007-09-11 - 2007-09-14, Rome, Italy.
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Abstract
Latest developments in hardware and software for laser based flow diagnostics enable the investigation of complex flow phenomena under enclosed, high-temperature and even pressurized conditions. However, the successful application of a velocimetry technique strongly depends on the presence of appropriate light-scattering tracer particles (seeding) in the flow. In the present paper, various types of solid as well as porous particle materials have been investigated regarding their physical properties, namely dimension and shape of primary particles and agglomerates, specific weight or density as well as refractory behavior. A variety of laboratory investigations were carried out to identify seeding materials qualified for PIV applications in transonic, supersonic or reactive flows. Measurements performed with porous particles showed the least amount of velocity lag, which was subsequently confirmed by PIV measurements during an industrial investigation involving supersonic free jets.
| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title: | Assessment of Powder-based Seeding Materials for PIV Applications in Transonic, Supersonic and Reacting Flows | ||||||||||||
| Authors: |
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| Date: | 15 May 2007 | ||||||||||||
| Journal or Publication Title: | PIV'07 | ||||||||||||
| Refereed publication: | Yes | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | velocimetry, seeding particles, fluidized bed, PIV, L2F, flow diagnostics | ||||||||||||
| Event Title: | 7th International Symposium on Particle Image Velocimetry | ||||||||||||
| Event Location: | Rome, Italy | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Dates: | 2007-09-11 - 2007-09-14 | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||
| HGF - Program Themes: | L ER - Engine Research | ||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||
| DLR - Program: | L ER - Engine Research | ||||||||||||
| DLR - Research theme (Project): | L - Virtual Engine and Validation Methods | ||||||||||||
| Location: | Köln-Porz | ||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology Institute of Propulsion Technology > Engine Measurement Systems | ||||||||||||
| Deposited By: | Melanie Voges | ||||||||||||
| Deposited On: | 05 Nov 2007 | ||||||||||||
| Last Modified: | 15 Jan 2010 00:44 |
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