2024-03-28T09:11:43Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00021707
2022-12-14T04:09:47Z
1221:1222
Strong Self-Propelled Swing Motion Due to the Growing Instability on Heat Transfer
Sugioka, Hideyuki
Kubota, Mako
© 2020 The Physical Society of Japan
We report that pendulums having a hot tip immersed in water exhibit a strong self-propelled swing motion. This large swing motion is observed when the temperature of the hot tip becomes that of the nucleate- to film-boiling regime. We propose a model that explains how the strong swing motion occurs owing to the growing asymmetrical instability of heat transfer from the hot tip to the water; i.e., the small swing motion increases the asymmetrical heat transfer and consequently accelerates the swing motion in the liquid. We believe that our findings will contribute significantly to a new class of self-propelled devices and energy conversion systems that convert waste heat into usable energy.
Article
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN.89(6):064402(2020)
PHYSICAL SOC JAPAN
2020-06-01
eng
journal article
AM
http://hdl.handle.net/10091/00022464
https://soar-ir.repo.nii.ac.jp/records/21707
https://doi.org/10.7566/JPSJ.89.064402
10.7566/JPSJ.89.064402
0031-9015
AA00704814
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
89
6
064402
https://soar-ir.repo.nii.ac.jp/record/21707/files/JPSJ89_064402.pdf
application/pdf
3.6 MB
2021-06-01