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An Approach to Automated Detection of Sessile Droplets in Mixed Convection

Volk, Marie-Christine and Niehaus, Konstantin A. and Westhoff, Andreas and Wagner, Claus (2024) An Approach to Automated Detection of Sessile Droplets in Mixed Convection. In: 23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV, 154, pp. 579-589. Springer Nature. 23. STAB-DGLR-Symposium 2022, 2022-11-09 - 2022-11-10, Berlin, Deutschland. doi: 10.1007/978-3-031-40482-5_55. ISBN 978-3-031-40481-8. ISSN 1612-2909.

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Official URL: https://link.springer.com/book/10.1007/978-3-031-40482-5

Abstract

A method for the measurement of position and size of sessile water droplets is presented. Droplets originate from condensation on a plane vertical surface in a vented cuboidal cavity with a mixed convective flow with humid air as the working fluid. Condensation is observed through a transparent cooling device coated with polyvinyl chloride with an average contact angle of 80.0(3)◦. The implemented detection algorithm is based on the circle Hough Transform together with sophisticated pre- and post-processing steps, which are detailed in this work. Validation experiments yield a detection of over 97% of the area covered by droplets by detecting a minimal radius of 13.8 μm. Additionally, first experimental results of droplet size distributions are presented.

Item URL in elib:https://elib.dlr.de/188177/
Document Type:Conference or Workshop Item (Speech)
Additional Information:ISSN 1612-2909 ISSN 1860-0824 (electronic) ISBN 978-3-031-40481-8 ISBN 978-3-031-40482-5 (eBook)
Title:An Approach to Automated Detection of Sessile Droplets in Mixed Convection
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Volk, Marie-ChristineUNSPECIFIEDhttps://orcid.org/0009-0003-8963-2724165028627
Niehaus, Konstantin A.UNSPECIFIEDhttps://orcid.org/0000-0001-7083-7998UNSPECIFIED
Westhoff, AndreasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wagner, ClausUNSPECIFIEDhttps://orcid.org/0000-0003-2273-0568UNSPECIFIED
Date:2024
Journal or Publication Title:23rd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIV
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:154
DOI:10.1007/978-3-031-40482-5_55
Page Range:pp. 579-589
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
Dillmann, AndreasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heller, GerdAirbus BremenUNSPECIFIEDUNSPECIFIED
Krämer, EwaldInstitut für Aerodynamik und Gasdynamik, Universität StuttgartUNSPECIFIEDUNSPECIFIED
Wagner, ClausUNSPECIFIEDhttps://orcid.org/0000-0003-2273-0568UNSPECIFIED
Weiss, JulienILR-Aerodynamik, TU BerlinUNSPECIFIEDUNSPECIFIED
Publisher:Springer Nature
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-031-40481-8
Status:Published
Keywords:mixed convection, non-condensable gas, humid air, image processing, dropwise condensation, evaporation, droplet growth, image recognition
Event Title:23. STAB-DGLR-Symposium 2022
Event Location:Berlin, Deutschland
Event Type:international Conference
Event Start Date:9 November 2022
Event End Date:10 November 2022
Organizer:STAB/DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Energie und Verkehr (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Niehaus, Konstantin A
Deposited On:08 Dec 2022 08:07
Last Modified:06 Aug 2024 16:26

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