A Caltech Library Service

Swimming in potential flow

Glisman, Alec and Brady, John F. (2022) Swimming in potential flow. Journal of Fluid Mechanics, 952 . Art. No. R5. ISSN 0022-1120. doi:10.1017/jfm.2022.946.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


The well-known self-propulsion, or swimming, of a deformable body in Stokes flow (i.e. at low Reynolds number) can be understood and modelled from the variation in the configuration-dependent hydrodynamic resistance tensor throughout the period of deformation. Remarkably, at the other extreme of high Reynolds number, a deformable body may also self-propel without doing any net work on the fluid in potential flow. As a body deforms, the mass of fluid displaced – the so-called added mass – depends on the instantaneous body configuration, and a net displacement is possible over a period of deformation. This potential swimming takes a form identical to that for Stokes swimmers with the configuration-dependent added mass replacing the hydrodynamic resistance tensor. Analytical insight into the swimming of a deformable body is obtained through an expansion of the nonlinear spatial dependence of the hydrodynamic interactions and connections between previous studies of swimming in Stokes flow to those in potential flow are made.

Item Type:Article
Related URLs:
URLURL TypeDescription
Glisman, Alec0000-0001-9677-1958
Brady, John F.0000-0001-5817-9128
Additional Information:This work was supported in part by grant CBET 1803662 from the National Science Foundation.
Funding AgencyGrant Number
Record Number:CaltechAUTHORS:20221219-416589000.8
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:118482
Deposited By: Research Services Depository
Deposited On:19 Jan 2023 19:51
Last Modified:19 Jan 2023 19:51

Repository Staff Only: item control page