The eddies of the Hamana River are short-tempered - elucidating the ever-changing eddy generation mechanism -

Keigo Katsuya; Mizutani Mashiro; Yamada Kohei

Presentation information

[J] Poster

O (Public ) » Public

[O-08] Poster presentations by senior high school students

Sun. May 26, 2024 1:45 PM - 3:15 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, GSES , Nagoya University), Miwa Kuri(Ministry of Education, Culture, Sports, Science and Technology), Keiko Konya(Japan Agency for Marine-Earth Science and Technology)

1:45 PM - 3:15 PM

[O08-P54] The eddies of the Hamana River are short-tempered - elucidating the ever-changing eddy generation mechanism -

*Keigo Katsuya¹, Mizutani Mashiro¹, Yamada Kohei¹ (1.Hamamatsu Gakugei High school)

Keywords:Ocean, Global environment, Geography

At Hamana river in Kosai city, Shizuoka pref., there is characteristic water flowing in local, whose velocity changes drastically and, along with that, two types of whirlpools occur, one is small scale and the other is medium scale. In this research, focusing on medium scale whirlpool, we attempted elucidating the mechanism of that occurrence. Firstly, we clarified the change of flowing velocity and tide level for 24 hours on site. Secondly, based on the result of on-site research, we created a waterway model and conducted a reproduction experiment. And finally, we executed the computer simulation for validation checking. These results suggest that medium scale whirlpools are occurs due to the delay in tidal level transmission caused by narrowing of the water channel.