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Real-time particle image velocimetry for closed-loop flow control applications

Willert, Christian and Munson, Matthew and Gharib, Morteza (2010) Real-time particle image velocimetry for closed-loop flow control applications. In: Conference proceedings. 15th Internation Symposium on Applications of Laser Techniques to Fluid Mechanics, 05.-08. Jul. 2010, Lisbon, Portugal.

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Official URL: http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2010/default.asp

Abstract

Particle image velocimetry (PIV) has been a standard laboratory technique in experimental fluid mechanics for many years, allowing quantitative visualization of fluid flows. Typically, the particle images are captured and then are subsequently subjected to image processing to eventually yield vector fields. In this paper, we describe a system that allows for "real-time" processing of the image pairs followed by post-processing to immediately provide fluid mechanical quantities not accessible with conventional point wise measurement techniques. In effect the real-time flow field data acts as a sensor in a flow control experiment. This paper will discuss the design, implementation and performance of the system as it applies to control of vortex formation processes on a low Reynolds number airfoil inside an oil tunnel facility.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Real-time particle image velocimetry for closed-loop flow control applications
Authors:
AuthorsInstitution or Email of Authors
Willert, Christianchris.willert@dlr.de
Munson, Matthewmunson@caltech.edu
Gharib, Mortezamgharib@caltech.edu
Date:5 July 2010
Journal or Publication Title:Conference proceedings
Refereed publication:Yes
In ISI Web of Science:No
Status:Published
Keywords:particle image velocimetry, active flow control, circulation measurement, oil tunnel, flow visualization, flow separation
Event Title:15th Internation Symposium on Applications of Laser Techniques to Fluid Mechanics
Event Location:Lisbon, Portugal
Event Type:international Conference
Event Dates:05.-08. Jul. 2010
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems
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 > Engine Measurement Systems
Deposited By: Dr.phil. Christian Willert
Deposited On:02 Aug 2010 13:56
Last Modified:12 Dec 2013 20:59

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