We are conducting fundamental researches on a variety of fluid flow phenomena including multiphase, cavitating, non-Newtonian and liquid metal flows. We are theoretically, numerically and experimentally addressing the issues in practical view of the utilization of passive/positive functions, the optimized control, and the avoidance of negative effects. We are also developing prediction and measurement methods to realize data acquisition and analysis for large-scale and multi-scale systems.


June 22nd, 2021 (research info)
A paper has been published in Physical Review E:
Watamura et al., Bubble cascade may form not only in stout beers

April 2021 (Lab guidance for bachelor course students in FY2021)

March 24th, 2021 (award)
Naoyuki Kinami won JSME Miura Award

April 5th, 2019 (research info)
A paper has been published:
Watamura, T., Iwatsubo, F., Sugiyama, K., Yamamoto, K., Yotsumoto, Y. and Shiono, T., "Bubble cascade in Guinness beer is caused by gravity current instability"
Scientific Reports, 2019, DOI:10.1038/s41598-019-42094-0

Press release from Osaka Univ (May, 2019) Mystery of texture of Guinness beer
News article for the earlier study (APS DFD, Nov. 2017) Bubbles Clustering While Pouring Stout Beers? )

September 2018 For Prospective Students/ Admission
See www.entrance.es.osaka-u.ac.jp/features-news/830

January 2018 (research info)
"Bubbles and physics in a glass of drink" on the website at School of Engineering Science

March 2015 (research info)
"On the flow phenomena including gas-liquid interface" on the website at School of Engineering Science

July 2013
The final WEB lecture of Y. Tsujimoto