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Investigation of the Velocity Field in a Full-Scale Artificial Martificial Medical Model

Mátrai, Zsolt und Roloff, Christoph und Bordás, Róbert und Szaszák, Norbert und Szilárd, Szabó und Thévenin, Dominique (2012) Investigation of the Velocity Field in a Full-Scale Artificial Martificial Medical Model. Conference on Modelling Fluid Flow (CMFF’12), The 15th Interantional Conference on Fluid Flow Technologies, 04. - 07. Sept. 2012, Budapest, Hungary. ISBN 978-963-08-4588-5.

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Kurzfassung

The aim of this contribution was to experimentally characterize the flow in the aneurysm of a full-scale medical phantom model for validation of companion numerical simulations. Due to its practical importance, a non-intrusive treatment of brain aneurysm attracts growing interest. To develop suitable treatment options, a better knowledge of the blood flow pattern in the complex geometry of aneurysms and cerebral vasculature is very important. To get information on the flow around the aneurysm, Laser Doppler Velocimetry (LDV) measurements had already been carried out by our group in a similar model at several cross-sections, considering a pulsating flow. As a complement, the present experimental series were carried out using large-field imaging measurement techniques. First, 2D-Particle Tracking Velocimetry (PTV) images were recorded and our in-house PTV-algorithm was optimized for the measurement configuration. The flow was seeded by fluorescent tracers and the excitation wave length was filtered out to avoid undesirable Mie scattering. In order to validate the PTV algorithm, the recorded images were also evaluated using a conventional cross-correlation method, like in Particle Image Velocimetry (PIV). Due to the different nature of the two evaluation methods, an interpolation of the Lagrangian (PTV) data into an Eulerian coordinate system (PIV) was required, in order to make a proper comparison between the two evaluation algorithms. The experimental setup, methods, results and conclusions are presented in this work.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Investigation of the Velocity Field in a Full-Scale Artificial Martificial Medical Model
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Mátrai, ZsoltDepartment of Fluid and Heat Engineering, University of Miskolc, Hungary
Roloff, ChristophInstitute of Fluid Dynamics and Thermodynamics, Otto-von-Guericke-University Magdeburg, Germany
Bordás, RóbertInstitute of Fluid Dynamics and Thermodynamics, Otto-von-Guericke-University Magdeburg, Germany
Szaszák, NorbertDepartment of Fluid and Heat Engineering, University of Miskolc, Hungary
Szilárd, SzabóDepartment of Fluid and Heat Engineering, University of Miskolc, Hungary
Thévenin, DominiqueInstitute of Fluid Dynamics and Thermodynamics, Otto-von-Guericke-University Magdeburg, Germany
Datum:2012
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 1-8
Name der Reihe:Conference Proceedings on CD-ROM
ISBN:978-963-08-4588-5
Status:veröffentlicht
Stichwörter:Cerebral aneurysm, PTV, PIV, blood flow, phantom model
Veranstaltungstitel:Conference on Modelling Fluid Flow (CMFF’12), The 15th Interantional Conference on Fluid Flow Technologies
Veranstaltungsort:Budapest, Hungary
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:04. - 07. Sept. 2012
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Simulation & Validierung
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren
Hinterlegt von: Ilka Micknaus
Hinterlegt am:15 Okt 2012 14:13
Letzte Änderung:15 Okt 2012 14:13

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