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Development of combined particle image velocimetry and particle image thermography for air flows

Schmeling, Daniel and Czapp, Marek and Bosbach, Johannes and Wagner, Claus (2010) Development of combined particle image velocimetry and particle image thermography for air flows. International Heat Transfer Conference 2010 (IHTC-14), 08. - 13. August 2010, Washington D.C., USA. ISBN 978-0-7918-3879-2.

Full text not available from this repository.

Official URL: http://www.asmeconferences.org/ihtc14/

Abstract

Simultaneous measurements of instantaneous velocity and temperature fields of air flows by means of Particle Image Velocimetry (PIV) and Particle Image Thermography (PIT) enables highly demanded studies on thermal plumes, their dynamics and the resulting heat transfer for Pr approximately 0.7. Thereby, small particles of thermochromic liquid crystals (TLCs), which reveal temperature depending reflection properties are used as tracer particles for combined PIT and PIV. The feasibility of the method is demonstrated in a Rayleigh-Benard convection experiment in a cubical enclosure. Furthermore, a new particle generator being able to produce continuously very small monodisperse droplets of TLCs has been designed. The improvement of the developmental process for mixed and Rayleig-Benard convection studies is discussed. Thereby, special focus is laid on the production process of small TLCs, the generation of monodisperse acetone-TLC droplets and the temperature depending colour play of the produced particles.

Document Type:Conference or Workshop Item (Paper, Poster)
Additional Information:Order No. 1846DV
Title:Development of combined particle image velocimetry and particle image thermography for air flows
Authors:
AuthorsInstitution or Email of Authors
Schmeling, DanielDaniel.Schmeling@dlr.de
Czapp, Marekczapp@td.mw.tum.de
Bosbach, JohannesJohannes.Bosbach@dlr.de
Wagner, ClausClaus.Wagner@dlr.de
Date:2010
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings on CD-ROM
ISBN:978-0-7918-3879-2
Status:Published
Keywords:Particle Image Velocimetry, Particle Image Thermography, thermochromic liquid crystals, Rayleigh-Benard convection
Event Title:International Heat Transfer Conference 2010 (IHTC-14)
Event Location:Washington D.C., USA
Event Type:international Conference
Event Dates:08. - 13. August 2010
Organizer:ASME
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 - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Daniel Schmeling
Deposited On:01 Feb 2010 13:58
Last Modified:23 Sep 2011 10:40

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