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Unregistered Lab
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A thermo-fluid dynamics lab that studies heat and flow at boundaries between liquids and gases and similar interfaces.
AboutAbout the lab
Probing heat and flow at interfaces in special environments.
The Unregistered Lab studies thermo-fluid dynamics in systems with interfaces, such as the boundaries between a liquid and a gas or between a liquid and a solid.
The research rests on two pillars: developing heat and mass transport technologies under special environments, and developing technologies for transporting and controlling the motion of fine particles in liquids.
In heat and mass transport under special environments, the lab focuses on the physics of familiar phenomena such as the movement of droplets on a substrate and the motion of vapor bubbles during boiling.
The lab has a wide range of applications in view, from microscale heat transfer to high-performance cooling devices essential for long-term stays in space and other settings.
Key terms
- Interface
- The boundary between substances in different states, such as a solid and a liquid or a liquid and a gas
- Wetting
- The phenomenon in which a liquid spreads over the surface of a solid
- Microgravity
- A state in which the effect of gravity is extremely small
NewsLab news
A paper on viscous fluid flow in fibrous porous media was published in J. Colloid Interface Sci.
A master's student received the Excellence Poster Award at the master's interim presentation.
A master's student received the Best Presentation Award at ISTP-35.
A master's student received the Best Student Oral Presentation Award and the Mohri Poster Session Excellence Award at JASMAC-37.
A master's student received the Best Oral Presentation Award at ACFM 2025.
ResearchResearch themes
Centered on thermo-fluid dynamics in systems with interfaces, the lab works on developing heat and mass transport technologies under special environments, as well as technologies for transporting and controlling the motion of fine particles in liquids. For heat and mass transport under special environments, it has a wide range of applications in view, from microscale heat transfer, crystal growth, and high-performance heat exchangers to high-performance cooling devices essential for long-term stays in space and other settings.
*Illustrative imageDynamics of Wetting
The lab studies how liquids wet and spread on a substrate, including how interactions with fine particles on a solid substrate promote spreading. Joint research is underway with universities in France and China.
*Illustrative imageHeat Flow with Gas–Liquid Phase Change
The lab studies time-varying heat flow accompanied by state changes between gas and liquid. Through the cooperative graduate school program with JAXA, it conducts joint research on gas–liquid separation systems for microgravity and low-gravity environments and on developing fluid machinery components for crewed activity on the Moon.
*Illustrative imageInstability in Free Liquid Films
The lab studies the instability of hydrothermal waves that occur inside free liquid films. Joint research is underway with NASA astronaut Dr. D. Pettit.
*Illustrative imageNonlinear Convection in Half-Zone (HZ) Liquid Bridges
The lab studies fluid motion in the nonlinear convective fields that arise inside half-zone (HZ) liquid bridges. A joint Japan–Europe space experiment project on the Japanese Experiment Module "Kibo" is under way, and the lab participates as a co-investigator.
MembersFaculty
The Unregistered Lab's members consist of faculty, master's students, and undergraduate students.As of 2026
- ProfessorUnregistered Unregistered
- Assistant ProfessorShin Noguchi
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Bubbles inside boiling water” Snehit Jamere / CC BY-SA 4.0 (cropped)
- Dynamics of Wetting: “Water droplet lying on a damask” Petar Milošević / CC BY-SA 4.0 (cropped)
- Heat Flow with Gas–Liquid Phase Change: “Kochendes wasser02” user:Markus Schweiss / CC BY-SA 3.0 (cropped)
- Instability in Free Liquid Films: “Soap film 3” Umberto Salvagnin / CC BY 2.0 (cropped)
- Nonlinear Convection in Half-Zone (HZ) Liquid Bridges: “Rayleigh–Bénard convection pattern in honey wine with cinnamon floating on top after 10 days of fermentation” Ywaz / CC BY-SA 4.0 (cropped)
- Related lab (塚原研究室): “Heat-transmittance-means2” Kmecfiunit, cmglee / CC BY-SA 4.0 (cropped)
- Related lab (小笠原研究室): “Hypersonic Research Engine in the Hypersonic Tunnel Facility (grc-1973-c-02625-2)” NASA / Public domain (cropped)
- Related lab (田口研究室): “X43a2 nasa scramjet” NASA / Public domain (cropped)
- Related lab (
青野研究室): “ZALA 421-12” QwasERqwasER at English Wikipedia / CC BY-SA 3.0 (cropped)
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