University of Limerick Institutional Repository

Sinking bubbles in stout beers

DSpace Repository

Show simple item record

dc.contributor.author Lee, William T.
dc.contributor.author Kaar, Simon
dc.contributor.author O'Brien, Stephen B.G.
dc.date.accessioned 2018-10-03T14:10:49Z
dc.date.available 2018-10-03T14:10:49Z
dc.date.issued 2018
dc.identifier.uri http://hdl.handle.net/10344/7193
dc.description peer-reviewed en_US
dc.description.abstract A surprising phenomenon witnessed by many is the sinking bubbles seen in a settling pint of stout beer. Bubbles are less dense than the surrounding fluid so how does this happen? Previous work has shown that the explanation lies in a circulation of fluid promoted by the tilted sides of the glass. However, this work has relied heavily on computational fluid dynamics (CFD) simulations. Here, we show that the phenomenon of sinking bubbles can be predicted using a simple analytic model. To make the model analytically tractable, we work in the limit of small bubbles and consider a simplified geometry. The model confirms both the existence of sinking bubbles and the previously proposed mechanism. en_US
dc.language.iso eng en_US
dc.publisher American Assocation of Physics Teachers en_US
dc.relation.ispartofseries American Journal of Physics;86 (4)
dc.relation.uri https://doi.org/10.1119/1.5021361
dc.rights Copyright 2018 American Association of Physics Teachers. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Association of Physics Teachers en_US
dc.subject sinking bubbles en_US
dc.subject stout beer en_US
dc.title Sinking bubbles in stout beers en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1119/1.5021361
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search ULIR


Browse

My Account

Statistics