Ryo Kurimoto gave his talk at Japan-US seminar in Tokyo (2-5 June):

• Ryo Kurimoto, Masahiro Kawaji, Kosuke Hayashi, Michio Murase Akio Tomiyama, CHARACTERISTICS OF AIR-WATER TWO-PHASE FLOW IN PARTICLE-PACKED BED

We brought our contributions to ICMF-Toulouse (10-16 May, France):

• Kosuke Hayashi, Sosuke Tashiro, Ryo Kurimoto, Mirco Magnini, Domonique Legendre, Shapes, Velocities and Paths of Single Bubbles Confined by Parallel Flat Plates
• Ryo Kurimoto, Roberta Fátima Neumeister, Ryuya Komine, Nurul Arifah Binti Ariffin, Gherhardt Ribatski, Kosuke Hayashi, Shapes and terminal velocities of single bubbles rising through fiber bundles in stagnant liquids
• Roberta Fátima Neumeister, Ryuya Komine, Ryo Kurimoto, Kosuke Hayashi, Gherhardt Ribatski, EXPERIMENTAL ANALYSIS WITHIN SINGLE BUBBLE WAKES RISING THROUGH FIBER BUNDLE
• Masahiro Kawaji, Ryo Kurimoto, Kosuke Hayashi, Akio Tomiyama, Michio Murase, Countercurrent flooding in a vertical pipe and rod bundle partially filled with particles
• Shohei Sasaki, Ryo Kurimoto, Kosuke Hayashi, Drift-Flux Parameters of Heterogeneous Bubbly Flows in Air-Water Bubble Columns
• Ryota Igarashi, Riku Hachikubo, Ryo Kurimoto, Kosuke Hayashi, Surface Coverage Ratio of Taylor Bubbles and Surfactant Effect on Bubble Shape in Square Microchannel

Undergraduate students joined us (the list of the members in 2025).

Dr. R. F. Neumeister brought her presentations of our collaborative works at ENCIT2024:

• R. F. Neumeister, D. M. Rocha, R. Komine, R. Kurimoto, K. Hayashi, G. Ribatski, Velocity Field External to a Tube Bundle Applying Spatial Filter Velocimetry and Machine Learning
• R. F. Neumeister, R. Komine, R. Kurimoto, G. Ribatski, K. Hayashi, Experimental Analysis of Velocity Fields within the Bubble Wakes

• Best Student's Presentation Award@ISTP-34: R. Komine, Experimental Analysis of Bubble Terminal Velocity in the Presence of Fibers in Aqueous Solutions
• Best Student's Presentation Award@ISTP-34: Y. Iwai, Fully-Contaminated State of Single Bubbles in Surfactant-Laden Water at Concentration beyond CMC

Student members brought their presentations to ISTP-34 (10-14 November, Taoyuan, Taiwan):

• R. Komine, R. F. Neumeister, N. A. B. Ariffin, R. Kurimoto, G. Ribatski, K. Hayashi, Experimental Analysis of Bubble Terminal Velocity in the Presence of Fibers in Aqueous Solutions
• R. Igarashi, R. Hachikubo, R. Kurimoto and K. Hayashi, Effects of Surfactant on Shape of Taylor bubble in a Square Microchannel
• Y. Iwai, R. Kurimoto, K. Hayashi, D. Legendre, S. Hosokawa, Fully-Contaminated State of Single Bubbles in Surfactant-Laden Water at Concentration beyond CMC

Presentation at JSMF Annual Meeting (25-27 Sep@Sendai).

• Ito, K. et al., Breakup of single planar bubbles in stagnant liquid (in Japanese)

Presentation at JSME Annual Meeting (8-11 Sep@Ehime).

• Kimura, T. et al., Study on oil-water and solid-liquid separation by swirling flow in a vertical tube (in Japanese)

R. Igarashi, R. Komine and S. Hotta were awarded the Best Presentation Awards from the Japanese Society for Multiphase Flow.

Presentations at Multiphase Flow Symposium 2024 (4-6 Sep@Toyama University), the annual symposium of the Japanese Society for Multiphase Flow.

• Igarashi, R. et al., Effect of surfactants on the shape of Taylor bubbles in a microchannel (in Japanese)
• Komine, R. et al., Experimental analysis of bubble terminal velocity in the presence of fibers (in Japanese)
• Tashiro, S. et al., Study on the shape and velocity acting on single bubble rising in confinement flows (in Japanese)
• Hotta, S. et al., Effects of pipe oscillation on liquid film thickness of single Taylor bubbles in a vertical pipe (in Japanese)
• Koto, R. et al., Prediction of volume fractions and pressure drop of swirling annular flows in vertical pipe based on one-dimensional three-fluid model (in Japanese)
• Neumeister, R. et al., Experimental analysis of bubble terminal velocity in fiber bundle
• Murase, M. et al., Interfacial Friction in a 3×3 Rod Bundle under Stagnant Liquid Conditions (in Japanese)
• Takaki, T. et al., Effects of pipe diameters on flow characteristics in vertical pipes under flooding conditions (in Japanese)
• Yoshida, N. et al., Dependence of void fraction on initial liquid height in a bubble column (in Japanese)
• Sasaki, S. et al., Drift-Flux Parameters of Heterogenous Bubbly Flows in Cylindrical Bubble Column (in Japanese)
• Kurimoto, R. et al., Characteristics of air-water two-phase flows in particle packed bed (in Japanese)
• Tashiro, S. et al. (presented by Hayashi, K.), Shapes and drag of single bubbles rising through stagnant liquid between parallel plates (in Japanese)

Presentations at The 67th National Congress of Theoretical and Applied Mechanics (3-6 Sep@Yokohama).

• Kurimoto, R. et al., Pressure drop and bubble velocity of Taylor flow in square microchannels (in Japanese)

Undergraduate students joined us (the list of the members in 2024).

A report for a research work on particle-attached bubbles supported by JKA Auto-Race 2023M-321 can be found via this link. (written only in Japanese)

A report for a research work on the structure of particle-/surfactant-laden bubbly flows supported by JKA Auto-Race 2022M-289 can be found via this link. (written only in Japanese)