Institute of Applied Mechanics > About us > Departments > Division of Fluid Dynamics > Research > Experimental investigation of flow phenomena in porous media and fills using PIV (particle image velocimetry)

Experimental investigation of flow phenomena in porous media and fills using PIV (particle image velocimetry)

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Gemessene Geschwindigkeitsverteilung im Porenraum

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Purpose of the project is to provide experimental data and the validation of models for simulating fluid flow in porous media. In process plants (eg fixed-bed reactor, fluidized bed) but also natural resources (eg groundwater, oil production) such transport processes are of great importance. Using optical measurement methods, especially the particle image velocimetry, the flow field in beds of spherical particles and other typical packing for reactors (eg, Raschig rings) determined directly. Compared with other optical methods (laser Doppler anemometry) provides the PIV method has the advantage that it provides immediate field sizes. Unlike probe measurements (hotwire anemometry, pressure) is measured non-invasively, non-reactive. Prerequisite for the use of an optical measurement method for the determination of flow parameters in these complex geometries is the most perfect adaptation of the refractive indices of the working fluid and the produced glass-flow reactor geometry and the particle. The measured velocity data are used to evaluate the models based on empirical method for simulating fluid flow in fixed bed reactors and to validate numerical calculations based on the Navier-Stokes equations. At the same time, the measuring method of robust algorithms for the evaluation of the PIV data are further developed.

 

Kontakt

Prof. Dr.-Ing. Gunther Brenner, Raum 126, Tel. 05323 72-2515
Dipl.-Ing. Adeline Tchikango, Raum 122, Tel. 05323 72-3565

Literatur

  • C. Knieke, Messung von Geschwindigkeitsfeldern in Kugelschüttungen mit der PIV Methode“, Studienarbeit, Institut für Technische Mechanik, TU Clausthal, 2005.
  • K. Stahr, Konstruktion einer Versuchsanlage zur optischen Messung von Strömungen, Studienarbeit, Institut für Technische Mechanik, TU Clausthal, 2006.
  • A.F.S. Ibánez, Geschwindigkeitsuntersuchungen in Festbetten, Alejandra Francisca Segarra Ibánez, Diplomarbeit Institut für Technische Mechanik, TU Clausthal, 2008.
  • A.S. Tchikango , C. Knieke, G. Brenner, Geschwindigkeitsmessungen in Schüttungen mittels Particle Image Velocimetrie (PIV), Chemie Ingenieur Technik, (2006), vol. 78, No. 6, pp. 747-750.
  • A.S. Tchikango, P. Giese, G. Brenner, V. Wesling, „Numerische und Experimentelle Untersuchungen der Partikelbewegung beim Plasmaschweißen“, Chemie Ingenieur Technik, (2007), vol. 79, No, 10, pp. 1699-1703.
  • A.S. Tchikango, P. Giese, G. Brenner, V. Wesling, „Numerical and Experimental Study of Particle Motion in Plasma Arc Welding”, Fluid Dynamics and Materials Processing, (2008), vol. 4, No. 2, pp. 77-84.
  • A.S. Tchikango, Experimentelle Untersuchungen von Strömungen in Kugelschüttungen und Validierung mittels CFD, GVC-Fachausschuss Mehrphasenströmung und Computational Fluid Dynamics, Überlingen, 04.03.06.
  • A.S. Tchikango, Measurements of Flows in randomly Packed Beds using the Particle Image Velocimetry”, 13th Int. Symp. On Appl. Laser Techniques to Fluid Mechanics, Lisbon, Portugal, June 26-29 2006.
  • A.S. Tchikango, PIV-Anwendungen am ITM, Norddeutsches Mechanikkolloquium, Febr. 2007, Göttingen.
  • A.S. Tchikango, Geschwindigkeitsmessungen in Schüttungen mittels Particle Image Velocimetry, Measurement 2008, Göttingen, 20-21 Februar 2008.
 

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