Student written Research Laboratory Guidebook 2025Nagaoka University of Technology

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Fluids Engineering and Rheology Laboratory

Professor / TAKAHASHI Tsutomu  Specially Appointed Assistant Professor / SATO Yasunori  Technical Staff / YAMADA Shuichi
  • "Panta rhei":everything flows.
  • Manipulate the flow to any of needs.
  • Study a lot, play a lot.

Professor / TAKAHASHI Tsutomu
Professor Takahashi is a distinguished scientist of fluid engineering as well as rheology. Because of that, we can widely work on unique and challenging projects. His extensive and powerful knowledge enhances our research activities (conference presentation, studying abroad, etc.). We can grow up in the lab through his supportive teaching.

Research Content

Our laboratory is focused on characterizing matters which can flow. Many of these are used in industries, but we do not understand sufficiently how they flow. We have been investigating their characteristics using a rheometer and a nano-hardness tester.
As other projects, we also focus on developing the novel wind turbine system consisting of circular cylinders and a ring. It is attractive for its availability in a city because it can generate high torque at low rotational velocity. Now, we have been working on improving the performance.

A wind turbine with circular cylinder blades driven by longitudinal vortices.

A Day in the Lab

Our laboratory is currently conducting a wide range of research projects, and we have also various events (e.g., two seminaries and one briefing session weekly). Therefore, it is a little bit busy. I think that we have many working styles in Takahashi's lab, I would be in the lab from 10 am ー 8 pm. I basically carry out an experiment designed by myself and analyze the data collected from tests. Of course, I frequently make slides for a conference or seminaries. It is much harder than I thought.
We always welcome you to become a part of our team!!

One flame of a experiment.

Thesis Subjects

  • (M)Effects of a place of the Downstream Plate on the Formation of Longitudinal Vortex
  • (M)Anisotropic Viscosity of a Wormlike Micelle Solution in Sinusoidal Shear Flow
  • (D)Study on Flow Phenomena of Yield Stress Fluid

The number of
PhD Graduates


Major employers of Graduates

  • YKK Corp.
  • Hitachi Zosen Corp.
  • Shin-Etsu Chemical Co., Ltd.
  • ShinMaywa Industries, Ltd.
  • Mitsubishi Electric Corp.
  • Mazda Motor Corp.
  • Kao Corp.
  • Nissin Giken Co., Ltd.
  • Dow Chemical Japan Ltd.
  • Toray Industries, Inc.
Writer : KIMOTO Yunosuke, Mechanical Engineering
(National Institute of Technology, Tokyo College)