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Nakamura Lab
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A lab that reads the water environments of rivers and lakes through the flow of water.
AboutAbout the lab
Understanding the present and future of water environments through water flow.
The Nakamura Lab studies water environments in inland waters such as rivers and lakes.
With water flow as the key, it considers how to maintain healthy water environments and how to prevent water-related disasters.
The lab develops three-dimensional flow programs using cutting-edge computational methods, and large-scale, high-speed analysis models using GPGPU.
Combined with field observations, flume experiments, and remote sensing using satellite images, these tools are used to understand water flow and water environments.
Key terms
- GPGPU
- A technology that uses computing devices built for graphics processing for general scientific computation as well. It can process large volumes of calculations quickly
- Brackish water
- Water of intermediate salinity, formed by the mixing of river water (fresh water) and seawater (salt water)
- Eutrophication
- A process in which nitrogen and phosphorus accumulate in a body of water, causing plankton to grow excessively and water quality to deteriorate
NewsLab news
View More ↗ResearchResearch themes
Targeting inland waters such as rivers and lakes, the lab studies the maintenance of healthy water environments and the prevention of water-related disasters, with water flow as its keyword. It applies simulation models developed in the lab and interprets water environments together with the results of field observations and tank experiments.
*Illustrative imageInvestigating Drowning in Tsunamis
Drowning, being swallowed by water, is said to be the main cause of death in tsunami disasters. To verify the effectiveness of drowning countermeasures such as life jackets, the lab is developing DRUM, a simulation model that can simultaneously analyze the flow and changes in the posture of the human body.
*Illustrative imageInvestigating the Water Environment of Brackish Lakes
The lab targets brackish lakes where a layer of highly saline water collects in the deep part and water quality deterioration is a concern. Using TITech-WARM, the three-dimensional hydrodynamic model developed in the lab, it analyzed the processes of saltwater intrusion from the sea into the lake and its transport to the deep layer as one continuous sequence.
*Illustrative imageInvestigating the Water Environment of Reservoirs
Reservoirs are major sources of tap water and industrial water. To keep eutrophic reservoirs healthy, the lab has developed a reservoir hydrodynamic model that computes changes in water temperature and flow within the reservoir from meteorological conditions such as solar radiation, and uses it to investigate the factors behind plankton growth.
*Illustrative imageInvestigating the Water Environment of Rivers
Rivers have constant flow, and the shape and meandering of the channel produce three-dimensional flows. In brackish estuaries near river mouths, saltwater entering from the sea can settle along the riverbed, raising the risk of oxygen depletion. The lab analyzed this behavior using TITech-WARM.
MembersFaculty
The Nakamura Lab consists of faculty and doctoral, master's, and undergraduate students.
- Associate ProfessorTakashi NakamuraPublications ↗
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: “The river of Borgvik” LG Nyqvist / CC BY-SA 4.0 (cropped)
- Investigating Drowning in Tsunamis: “Turbulent Water of Ken - geograph.org.uk - 998757” Bob Peace / CC BY-SA 2.0 (cropped)
- Investigating the Water Environment of Brackish Lakes: “Lake Shinji, Matsue” Bernard Gagnon / CC BY-SA 3.0 (cropped)
- Investigating the Water Environment of Reservoirs: “Mattupetty Lake View” Ingo Mehling / CC BY-SA 4.0 (cropped)
- Investigating the Water Environment of Rivers: “Estuary of river Aude, Les Cabanes de Fleury, Département Hérault-0628” Raimond Spekking / CC BY-SA 4.0 (cropped)
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