C06

Contact line dynamics and diffusion-driven nucleation during cavitation

Overview

Starting with the second funding period, the new subproject C06 deals with cavitation. Cavitation is highly relevant in hydraulic machines as it can lead to wear, noise and loss of function. The formation and dynamics of a cavitation bubble depend on both the diffusion of inert gases from the supersaturated liquid and the evaporation. These mass transport and phase change processes are strongly influenced by the wetting properties and vice versa. In a test bench, nucleation and cavitation are recorded with high resolution including the contact line region. Analytical models are derived and validation and comparison data are made available to other subprojects.

Team

  Name Contact
Prof. Dr.-Ing. Peter F. Pelz
+49 6151 16-27101
L1|01 465
Benedict Depp M.Sc.
+49 6151 16-27114
L1|01 473

Associated members

  Name Contact
Seyedmajid Mehrnia M.Sc.
+49 6151 16-27107
L|101 471
Grigorios Hatzissawidis M.Sc.
+49 6151 16-27113
L1|01 445

Project-related publications

Pelz, P. F. and Kuhr, Maximilian (2018):
Interface instability of an inelastic normal collision.
In: Archive of Applied Mechanics, Springer Berlin Heidelberg, DOI: 10.1007/s00419-018-1420-8,
[Online-Edition: https://link.springer.com/article/10.1007/s00419-018-1420-8?...],
[Article]

Groß, T. F. and Bauer, J. and Ludwig, G. and Fernandez Rivas, D. and Pelz, P. F. (2018):
Bubble nucleation from micro-crevices in a shear flow.
In: Experiments in Fluids, 59 (1), Springer, pp. 1-10, ISSN 0723-4864,
DOI: 10.1007/s00348-017-2459-y,
[Online-Edition: https://doi.org/10.1007/s00348-017-2459-y],
[Article]

Pelz, P. F. and Keil, T. and Groß, T. F. (2017):
The transition from sheet to cloud cavitation.
In: Journal of Fluid Mechanics, 817. Cambridge University Press, pp. 439-454, ISSN 0022-1120,
[Online-Edition: https://doi.org/10.1017/jfm.2017.75],
[Article]

Groß, T. F. and Pelz, P. F. (2017):
Diffusion-driven nucleation from surface nuclei in hydrodynamic cavitation.
In: Journal of Fluid Mechanics, 830pp. 138-164, ISSN 0022-1120,
DOI: 10.1017/jfm.2017.587,
[Online-Edition: https://doi.org/10.1017/jfm.2017.587],
[Article]