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Assessment of image correlation methods for the estimation of volume flow rates of subsea oil-gas plumes

Willert, Christian und Wereley, Steve (2010) Assessment of image correlation methods for the estimation of volume flow rates of subsea oil-gas plumes. 63rd Annual Meeting, American Physical Society, Division of Fluid Dynamics (DFD), 21.-23. Nov. 2010, Long Beach (CA), USA.

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Offizielle URL: http://meetings.aps.org/Meeting/DFD10/Event/134412

Kurzfassung

The recent uncontrolled release of oil and gas from a failed well into the Gulf of Mexico in the wake of the Deep Water Horizons accident illustrated that the actual release rates are difficult to assess with established surface observation methods. To a large extent this has to with the great depth (~1500m) at which the oil was released and its subsequent dispersal throughout the vertical water column. Streaming video of the failure site was provided by subsea remotely operated vehicles (ROV) and allow, in principle, the quantification of the release rate on the basis of motion analysis image processing methods. Several correlation based approaches, commonly used in particle image velocimetry (PIV), are investigated with regard to estimating the propagation velocity of large scale features in the visible interface between sea water and oil plume. Together with time scale (video frame rate) and length scale (pipe diameter) the interface velocity of the plume can be estimated. Assuming the plume to be a turbulent free jet the actual volume flow rate of the oil/gas mixture can be then be recovered with reasonable accuracy.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Assessment of image correlation methods for the estimation of volume flow rates of subsea oil-gas plumes
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Willert, Christianchris.willert@dlr.de
Wereley, StevePurdue University
Datum:November 2010
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:fluid flow measurement, optical flow, particle image velocimetry (PIV), image processing, feature based motion estimation
Veranstaltungstitel:63rd Annual Meeting, American Physical Society, Division of Fluid Dynamics (DFD)
Veranstaltungsort:Long Beach (CA), USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:21.-23. Nov. 2010
Veranstalter :University of Southern California, California State University Long Beach, California Institute of Technology, University of California Los Angeles
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Antriebe
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L ER - Antriebsforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Virtuelles Triebwerk und Validierungsmethoden
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Antriebstechnik > Triebwerksmesstechnik
Hinterlegt von: Dr.phil. Christian Willert
Hinterlegt am:16 Dez 2010 13:38
Letzte Änderung:16 Dez 2010 13:38

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