Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session B34: Functionality Through Nonlinearity II
11:30 AM–2:30 PM,
Monday, March 4, 2024
Room: 102F
Sponsoring
Units:
DSOFT GSNP
Chair: Benjamin Gorissen, KU Leuven
Abstract: B34.00011 : Bending rigidity of fluid-running tubes*
1:30 PM–1:42 PM
Presenter:
Satsuki Shibuya
(Keio Univ)
Authors:
Satsuki Shibuya
(Keio Univ)
Tomohiko G Sano
(Keio Univ)
Here, we study the rigidity and instability of cylindrical shells with fluids running inside it. This phenomenon is commonly seen in our daily lives such as showers and garden hoses.
To see the effect of the running fluid, we measured the force needed for the deformation of the elastic tube while changing the velocity of the running fluid through a three-point bending test. We have clarified the relation between bending force and the running fluid-velocity. In particular, we have focused the critical force for the kink formation upon bending (known as the Brazier instability).
This study suggests to be a model case for calculating the rigidity and instability of elastic tubes and may also be applied to medical fields such as measuring the rigidity of blood vessels.
*This work was supported by MEXT KAKENHI 18K13519, JST FOREST Program, Grant Number JPMJFR212W.
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