Spatiotemporally resolved heat transfer in falling-film flows by laser-induced fluorescence, particle tracking velocimetry and infrared thermography
File(s)ASTFE_Extended_Abstract_Charogiannis_etal.pdf (667.91 KB)
Accepted version
Author(s)
Charogiannis, A
Denner, F
Van Wachem, BGM
Kalliadasis, S
Markides, CN
Type
Conference Paper
Abstract
We present an experimental technique, based on the simultaneous application of planar laser-induced fluorescence (PLIF), particle tracking velocimetry (PTV) and infrared thermography (IRT), aimed at the detailed measurement of unsteady heat-transfer in harmonically-excited film flows falling under the action of gravity over an inclined, electrically-heated substrate. PLIF is employed in order to recover space- and time-resolved film-height information, PTV to obtain two-dimensional (2-D) velocity, and IRT to measure the free-surface (gas-liquid interface) temperature over a 2-D domain. Phase-lock averaged film-height, flow-field and free-surface data, we demonstrate the generation of highly localized film-height, velocity and heat-transfer along the wave topology over a range of applied heat fluxes.
Date Issued
2017
Date Acceptance
2017-04-02
Citation
Proceedings of the Thermal and Fluids Engineering Summer Conference, 2017, pp.3043-3046
ISBN
9781567004700
ISSN
2379-1748
Publisher
ASTFE Digital Library
Start Page
3043
End Page
3046
Journal / Book Title
Proceedings of the Thermal and Fluids Engineering Summer Conference
Copyright Statement
© 2017 The Author(s).
Source
Second Thermal and Fluids Engineering Conference
Publication Status
Published
Start Date
2017-04-02
Finish Date
2017-04-05
Coverage Spatial
Las Vegas, NV, USA
Date Publish Online
2017