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A technique to measure the real surface tension on a bubble wall

A technique to measure the real surface tension on a bubble wall
A technique to measure the real surface tension on a bubble wall
The surface tension of water is a key parameter for assessing the degree of contamination of harbours, ports and open waters. However standard methods of measuring surface tension do so at the flat air/water interface at the top of a body of water, whereas in for many important processes, this is not the manifestation of surface tension that is most important. For biogenic decomposition, air/sea gas exchange, the production of aerosols (all three of which are known to be important for climate on a global scale), as well as the behaviour of ship wakes and their effects (in distributing contaminants in the water column, affecting the local sound field or the ship’s acoustic signature), and in the harvesting and transportation of petrochemicals, it is the surface tension on the wall of bubbles within the water column that matters. This paper explores a technique that can measure the surface tension on a bubble wall, and compares it with the
surface tension measured at the air/water interface. Any difference would mean that modelling of the above effects, based on measurements of surface tension on the flat air/water interface, would contain systematic errors with global implications.
bubble, surface tension, air/sea gas flux, pollution, wake
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Zhu, M.
3f4cc18c-a721-4422-93c0-5cf03bd1f9da
Birkin, P.R.
ba466560-f27c-418d-89fc-67ea4f81d0a7
Leighton, T.G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Zhu, M.
3f4cc18c-a721-4422-93c0-5cf03bd1f9da
Birkin, P.R.
ba466560-f27c-418d-89fc-67ea4f81d0a7

Leighton, T.G., Zhu, M. and Birkin, P.R. (2014) A technique to measure the real surface tension on a bubble wall. 2nd International Conference and Exhibition on Underwater Acoustics (UA2014), Greece. 22 - 27 Jun 2014. 8 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

The surface tension of water is a key parameter for assessing the degree of contamination of harbours, ports and open waters. However standard methods of measuring surface tension do so at the flat air/water interface at the top of a body of water, whereas in for many important processes, this is not the manifestation of surface tension that is most important. For biogenic decomposition, air/sea gas exchange, the production of aerosols (all three of which are known to be important for climate on a global scale), as well as the behaviour of ship wakes and their effects (in distributing contaminants in the water column, affecting the local sound field or the ship’s acoustic signature), and in the harvesting and transportation of petrochemicals, it is the surface tension on the wall of bubbles within the water column that matters. This paper explores a technique that can measure the surface tension on a bubble wall, and compares it with the
surface tension measured at the air/water interface. Any difference would mean that modelling of the above effects, based on measurements of surface tension on the flat air/water interface, would contain systematic errors with global implications.

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More information

Published date: June 2014
Venue - Dates: 2nd International Conference and Exhibition on Underwater Acoustics (UA2014), Greece, 2014-06-22 - 2014-06-27
Keywords: bubble, surface tension, air/sea gas flux, pollution, wake
Organisations: Inst. Sound & Vibration Research

Identifiers

Local EPrints ID: 369555
URI: http://eprints.soton.ac.uk/id/eprint/369555
PURE UUID: 66b5764e-38a7-4c89-8581-006659768960
ORCID for T.G. Leighton: ORCID iD orcid.org/0000-0002-1649-8750
ORCID for P.R. Birkin: ORCID iD orcid.org/0000-0002-6656-4074

Catalogue record

Date deposited: 30 Sep 2014 13:18
Last modified: 14 Jul 2018 00:36

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