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Near-surface dynamics of a gas bubble collapsing above a crevice

Trummler, Theresa and Bryngelson, Spencer H. and Schmidmayer, Kevin and Schmidt, Steffen J. and Colonius, Tim and Adams, Nikolaus A. (2020) Near-surface dynamics of a gas bubble collapsing above a crevice. Journal of Fluid Mechanics, 899 . Art. No. A16. ISSN 0022-1120. https://resolver.caltech.edu/CaltechAUTHORS:20200806-103840041

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Abstract

The impact of a collapsing gas bubble above rigid, notched walls is considered. Such surface crevices and imperfections often function as bubble nucleation sites, and thus have a direct relation to cavitation-induced erosion and damage structures. A generic configuration is investigated numerically using a second-order accurate compressible multi-component flow solver in a two-dimensional axisymmetric coordinate system. Results show that the crevice geometry has a significant effect on the collapse dynamics, jet formation, subsequent wave dynamics and interactions. The wall-pressure distribution associated with erosion potential is a direct consequence of development and intensity of these flow phenomena.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1017/jfm.2020.432DOIArticle
ORCID:
AuthorORCID
Trummler, Theresa0000-0001-8869-5860
Bryngelson, Spencer H.0000-0003-1750-7265
Schmidmayer, Kevin0000-0003-0444-3098
Schmidt, Steffen J.0000-0001-6661-4505
Colonius, Tim0000-0003-0326-3909
Adams, Nikolaus A.0000-0001-5048-8639
Additional Information:© The Author(s), 2020. Published by Cambridge University Press. Received 13 December 2019; revised 24 March 2020; accepted 23 May 2020. Published online by Cambridge University Press: 21 July 2020. The research stay of T.T. at Caltech was supported by the Deutscher Akademischer Austauschdienst (DAAD), the TUM Graduate School, and the ERC Advanced Grant NANOSHOCK (2015). S.H.B., K.S., and T.C. acknowledge support from the US Office of Naval Research under grant numbers N0014-18-1-2625 and N0014-17-1-2676. The authors report no conflict of interest.
Funders:
Funding AgencyGrant Number
Deutscher Akademischer Austauschdienst (DAAD)UNSPECIFIED
Technical University of MunichUNSPECIFIED
European Research Council (ERC)NANOSHOCK
Office of Naval Research (ONR)N0014-18-1-2625
Office of Naval Research (ONR)N0014-17-1-2676
Subject Keywords:bubble dynamics, cavitation
Record Number:CaltechAUTHORS:20200806-103840041
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200806-103840041
Official Citation:Trummler, T., Bryngelson, S., Schmidmayer, K., Schmidt, S., Colonius, T., & Adams, N. (2020). Near-surface dynamics of a gas bubble collapsing above a crevice. Journal of Fluid Mechanics, 899, A16. doi:10.1017/jfm.2020.432
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104774
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:06 Aug 2020 18:04
Last Modified:18 Nov 2020 19:44

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