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Numerical simulation of drop impingement and bouncing on a heated hydrophobic surface

Samkhaniani, N. ORCID iD icon; Marschall, H.; Stroh, A.; Frohnapfel, B. ORCID iD icon; Wörner, Martin ORCID iD icon

Abstract:

The heat transfer of a single water droplet impacting on a heated hydrophobic surface is investigated numerically using a phase field method. The numerical results of the axisymmetric computations show good agreement with the dynamic spreading and subsequent bouncing of the drop observed in an experiment from literature. The influence of Weber number on heat transfer is studied by varying the drop impact velocity in the simulations. For large Weber numbers, good agreement with experimental values of the cooling effectiveness is obtained whereas for low Weber numbers no consistent trend can be identified in the simulations.


Verlagsausgabe §
DOI: 10.5445/IR/1000141097
Veröffentlicht am 13.12.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Katalyseforschung und -technologie (IKFT)
Institut für Strömungsmechanik (ISTM)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 11.2021
Sprache Englisch
Identifikator ISSN: 1742-6588, 1742-6596
KITopen-ID: 1000141097
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Erschienen in Journal of Physics: Conference Series
Verlag Institute of Physics Publishing Ltd (IOP Publishing Ltd)
Band 2116
Heft 1
Seiten Art.-Nr.: 012073
Projektinformation SFB/TRR 150/2 (DFG, DFG KOORD, TRR 150/2 2019)
Bemerkung zur Veröffentlichung EUROTHERM 2021 - 8th European Thermal Sciences Conference
Nachgewiesen in Dimensions
Scopus
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