elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

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

Mátrai, Zsolt and Roloff, Christoph and Bordás, Róbert and Szaszák, Norbert and Szilárd, Szabó and 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.

Full text not available from this repository.

Abstract

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.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Investigation of the Velocity Field in a Full-Scale Artificial Martificial Medical Model
Authors:
AuthorsInstitution or Email of Authors
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
Date:2012
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings on CD-ROM
ISBN:978-963-08-4588-5
Status:Published
Keywords:Cerebral aneurysm, PTV, PIV, blood flow, phantom model
Event Title:Conference on Modelling Fluid Flow (CMFF’12), The 15th Interantional Conference on Fluid Flow Technologies
Event Location:Budapest, Hungary
Event Type:international Conference
Event Dates:04. - 07. Sept. 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:15 Oct 2012 14:13
Last Modified:15 Oct 2012 14:13

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.