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Uchiyama Lab
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A fluid mechanics lab that reproduces, measures, and utilizes the flow of water and bubbles.
AboutAbout the lab
Reproducing, controlling, and utilizing flows.
The Uchiyama Lab investigates the flow of water and the motion of bubbles and vortices using numerical simulation and experiments.
The lab also works on developing micro water turbines with excellent passage of foreign matter for harnessing small hydropower, and on controlling bubble motion to collect and transport bubbles.
On the lab's website, research themes are introduced according to how they approach flow, such as "understanding flow" and "reproducing flow."
Key terms
- Small hydropower
- Hydropower energy available in small rivers, waterways, and similar places.
- Shallow, fast flow
- Flow with a shallow water depth and high velocity, seen in places such as agricultural irrigation channels.
ResearchResearch themes
This lab studies flow from the perspectives of understanding, measuring, reproducing, visualizing, utilizing, and controlling it. Using both numerical simulation and experiments, the lab centers on themes dealing with flows in water, such as water turbines, bubbles, and vortex rings.
*Illustrative imageBehavior of a Sphere Passing Through a Water Surface
The lab conducts experiments in which a solid sphere is launched vertically upward from underwater toward the water surface. It aims to clarify physically the interaction between the water surface and the sphere as the sphere passes through the surface.
*Illustrative imageFlowmeter for IoT Sensors
The lab is developing a turbine flowmeter suited to IoT sensors. The flowmeter identifies the flow rate from the rotor's rotation speed and wirelessly transmits flow data using the electricity generated by the rotation.
*Illustrative imageDirect Numerical Simulation of Flows Using the Vortex Method
Using the vortex method, the lab carried out direct numerical simulation (DNS) of targets including turbulence between parallel plates, slit jets, density-stratified fluid in a cylindrical tank, and bubble plumes.
*Illustrative imageFlow Analysis of a Water Turbine Driven by Shallow, Fast Flow
The lab uses a particle method to simulate the flow through an open cross-flow water turbine driven by shallow, fast flow, which has a low water depth and high velocity and is found in places such as agricultural irrigation channels. Through this research, the lab also designs water turbines.
MembersFaculty
The Uchiyama Lab's members consist of faculty members, doctoral and master's students, and a secretary.
- ProfessorTomomi Uchiyama
- Assistant ProfessorTomohiro Degawa
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 in water ( )” Thomas Tolkien from Yorkshire, UK / CC BY 2.0 (cropped)
- Behavior of a Sphere Passing Through a Water Surface: “Water drop impact on a water-surface - (2)” Davide Restivo from Aarau, Switzerland / CC BY-SA 2.0 (cropped)
- Flowmeter for IoT Sensors: “Electromagnetic Flow Meter” Vision World Tech Private Limited / CC0 (cropped)
- Direct Numerical Simulation of Flows Using the Vortex Method: “Helicopter blade tip vortex simulation by DLR” DLR / CC BY 3.0 (cropped)
- Flow Analysis of a Water Turbine Driven by Shallow, Fast Flow: “ORPC RivGen® 2.0 Power System” Igiugig Village Council and ORPC / CC BY-SA 4.0 (cropped)
- Related lab (Koji Lab): “Control building computer room (cb computer room dec2004)” ESO / CC BY 4.0 (cropped)
- Related lab (Nagamine Lab): “Satellite image of Czech Republic in September 2003” 作者不詳 / Public domain (cropped)
- Related lab (ALIFE-CORE Lab): “A starling murmuration at Prestwick - geograph.org.uk - 5991171” Walter Baxter / CC BY-SA 2.0 (cropped)
- Related lab (Simulation Science Lab): “This visualization shows what Einstein envisioned” Henze, NASA / Public domain (cropped)
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