Ice Nucleation in the Presence of Electric Fields: An Experimental Study TU Darmstadt, High-Voltage Laboratories

Format:

Book

Conference/Event

Author/Creator:

Löwe, Löwe, author.

Contributor:

Hinrichsen, Volker

Schremb, Markus

Tropea, Cameron

Conference Name:

International Conference on Icing of Aircraft, Engines, and Structures (2019-06-17 : Minneapolis, Minnesota, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2019

Summary:

AbstractIn the present study, ice nucleation in sessile water drops during continuous cool down is studied experimentally under the impact of a constant electric field, to determine its 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 drop generator. Based on multiple experimental runs using the same drops, 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 drop ensembles is investigated for a constant cooling rate of 5 K/minutes A comparison of the experiments with and without an electric field is used to elaborate its influence on heterogeneous ice nucleation

Notes:

Vendor supplied data

Publisher Number:

2019-01-2020

Access Restriction:

Restricted for use by site license