Löwe, Jens-Michael ; Schremb, Markus ; Hinrichsen, Volker ; Tropea, Cameron (2019)
Ice Nucleation in the Presence of Electric Fields: An Experimental Study.
SAE International Conference on Icing of Aircraft, Engines, and Structures. Minneapolis, USA (17.06.2019-21.06.2019)
doi: 10.4271/2019-01-2020
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
In the present study, ice nucleation in sessile water droplets during continuous cool down is studied experimentally under the impact of electric fields to determine their influence on heterogeneous nucleation. The experimental setup enables simultaneous observation of multiple drops under well-defined conditions with and without an electric field, and at temperatures down to -40 °C. A single experimental run contains 40 drops exposed to the same conditions. Drops with a well-defined size are produced employing a drop-on-demand droplet generator. Based on multiple experimental runs using the same droplets, the nucleation behavior is analyzed using statistical methods to determine the drop survival curves and nucleation site densities for varying conditions. Besides the influence of the electric field, the influence of different droplet ensembles is investigated for a constant cooling rate of 5 K/min. A comparison of the experiments with and without an electric field is used to laborate its influence on heterogeneous ice nucleation.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Löwe, Jens-Michael ; Schremb, Markus ; Hinrichsen, Volker ; Tropea, Cameron |
| Art des Eintrags: | Bibliographie |
| Titel: | Ice Nucleation in the Presence of Electric Fields: An Experimental Study |
| Sprache: | Englisch |
| Publikationsjahr: | 10 Juni 2019 |
| Ort: | Minneapolis, USA |
| Veranstaltungstitel: | SAE International Conference on Icing of Aircraft, Engines, and Structures |
| Veranstaltungsort: | Minneapolis, USA |
| Veranstaltungsdatum: | 17.06.2019-21.06.2019 |
| DOI: | 10.4271/2019-01-2020 |
| URL / URN: | https://www.sae.org/publications/technical-papers/content/20... |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | In the present study, ice nucleation in sessile water droplets during continuous cool down is studied experimentally under the impact of electric fields to determine their influence on heterogeneous nucleation. The experimental setup enables simultaneous observation of multiple drops under well-defined conditions with and without an electric field, and at temperatures down to -40 °C. A single experimental run contains 40 drops exposed to the same conditions. Drops with a well-defined size are produced employing a drop-on-demand droplet generator. Based on multiple experimental runs using the same droplets, the nucleation behavior is analyzed using statistical methods to determine the drop survival curves and nucleation site densities for varying conditions. Besides the influence of the electric field, the influence of different droplet ensembles is investigated for a constant cooling rate of 5 K/min. A comparison of the experiments with and without an electric field is used to laborate its influence on heterogeneous ice nucleation. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Strömungslehre und Aerodynamik (SLA) 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektrische Energiesysteme > Hochspannungstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektrische Energiesysteme DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Transregios DFG-Sonderforschungsbereiche (inkl. Transregio) > Transregios > TRR 75 Tropfendynamische Prozesse unter extremen Umgebungsbedingungen |
| Hinterlegungsdatum: | 06 Jun 2019 06:14 |
| Letzte Änderung: | 28 Nov 2019 07:44 |
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