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:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Volk, Marie-Christine	Marie-Christine.Volk (at) dlr.de	https://orcid.org/0009-0003-8963-2724	165028627
Niehaus, Konstantin A.	konstantin.niehaus (at) dlr.de	https://orcid.org/0000-0001-7083-7998	UNSPECIFIED
Westhoff, Andreas	andreas.westhoff (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Wagner, Claus	claus.wagner (at) dlr.de	https://orcid.org/0000-0003-2273-0568	UNSPECIFIED

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:

Gold Open Access:

In SCOPUS:

Yes

In ISI Web of Science:

Volume:

154

DOI:

10.1007/978-3-031-40482-5_55

Page Range:

pp. 579-589

Editors:

Editors	Email	Editor's ORCID iD	ORCID Put Code
Dillmann, Andreas	Andreas.Dillmann (at) dlr.de	UNSPECIFIED	UNSPECIFIED
Heller, Gerd	Airbus Bremen	UNSPECIFIED	UNSPECIFIED
Krämer, Ewald	Institut für Aerodynamik und Gasdynamik, Universität Stuttgart	UNSPECIFIED	UNSPECIFIED
Wagner, Claus	Claus.Wagner (at) dlr.de	https://orcid.org/0000-0003-2273-0568	UNSPECIFIED
Weiss, Julien	ILR-Aerodynamik, TU Berlin	UNSPECIFIED	UNSPECIFIED

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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