Seminar2 [Flume experiment]March 27, 2014


 In this program, we conducted flume experiment to describe how the river morphology is formed. Firstly, the flume run was started and multiple bar was formed in the flume.
 Secondly, I introduced my research activities, which is to revel the boundary condition of multiple bar and single alternative bar, and explained what is research and what kind of contribution for residents or societies are possible in this research.
 Then, I showed numerical simulation results to form the multiple bars and single alternate bars. Both merit and demerit of flume experiment and numerical simulations are explained respectively.
 During these expositions, multiple bars in the flume have transformed into single alternate bars, which surprised students. And finally, the relationships between these bars and bio diversities are explained.

(Doctor course student, Daisuke HARADA)

 さらに,コンピュータを使った数値シミュレーションで,実験水路と同じように複列砂州や交互砂州が形成される様子を見てもらった.また,実験,シミュレーションのメリットやデメリットについて説明し,これらと現地観測を併せて河川の研究が行われている事を説明した. この説明をしている間に,実験水路の複列砂州は交互砂州へと移行するため,最後に交互砂州を見てもらい,これらの砂州という河川地形と生物多様性の関係について理解してもらった.

(博士課程三年 原田大輔)