A workshop on computational fluid and sediment dynamics modeling was held at Hiroshima University on September 22, 2025. We invited a specially appointed professor (Professor Emeritus), Takayuki Aoki at Institute of Science Tokyo and Research Senior Advisor at Sabo and Landslide Technical Center (STC). We also invited participants who are Mr. Shimizu, Mr. Shima, and Mr. Yoshida from STC.

Specially appointed professor Aoki’s HP：https://www.sim.scrc.iir.isct.ac.jp/index.html

In this workshop, we were able to hear a wide range of his results from previous large scale computations using GPU to the latest findings, which were both highly interesting! These interesting simulation results were already uploaded on his HP. Please refer to it.

Additionally, Professor Tatsuhiko Uchida, I, and Daichi Matsuo from our laboratory had oral presentations, and our lab’s students also had poster presentations. This workshop made us brimming with energy for a whole day!

Thank you,

Written by Takashi

Hello everyone!
From here on, this post will be written by me, Daichi Matsuo, a Dr. second student.

On the morning after the workshop,
Professor Aoki, Mr. Shima from Sabo and Landslide Technical Center, Professor Uchida, Specially appointed assistant professor Takashi Inoue, myself, and Adachi (a bachelor student in our lab) went on a boat fishing trip!

We set out from Hiroshima Bay Marina for some fishing!

Unfortunately, the weather was cloudy (with occasional rain)!!

We were already worried about whether we’d catch anything as we left the port, all geared up in raincoats just in case.

This time, we tried “Tai-rubber fishing.”
It’s a style of lure fishing that mainly targets red sea bream (madai), using a lure called a tai-rubber, which combines a weighted head with rubber parts and hooks.

The basic method is to drop it all the way to the seabed and then reel it back at a steady speed. I heard it’s beginner-friendly and easy to handle!

So, what about the results…?

Professor Aoki took the lead with the very first catch!!!
He landed a fine red sea bream—what a great start!

It was a bit right after we moved to a new spot. As expected, he’s got luck!

Professor Uchida and Adachi also managed to reel in some impressive fish.

Although the weather wasn’t on our side and the results weren’t huge, it was still an incredibly fun experience!

Next time, I’m determined to make a big catch!

Written by Matsuo