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Graduate School of Science and Engineering
Mechanical Engineering

Heat Transfer Laboratory

Thermofluid measurements to understand thermal-hydraulic phenomena and developing their engineering applications



Acceptable course
Master's degree course
Doctoral degree course
Telephone : +81-774-65-6463
Office : YM-426
Database of Researchers

Shumpei HARA
[Assistant Professor]
Acceptable course
Master's degree course×
Doctoral degree course×
Telephone : +81-774-65-6832
Office : YM-323
Database of Researchers

Research Topics

<1> Research on elucidating various thermal flow characteristics and their engineering applications
<2> Research on dynamic control of thermal flow fields
<3> Research on enhancing the efficiency of systems using waste heat and of thermofluid devices

Research Contents

■Topic 1
develop aims to clarify various thermal-hydraulic phenomena in laminar and turbulent flows and discover their engineering applications. In practice, this focuses on thermal flow fields including significant engineering elements such as wall turbulence, jet flow, swirl flow, pulsatile flow, flow around wings, and re-attaching flow after separation accompanied by heat transfer, in order to investigate the structure of the flow field and temperature field, identify phenomena with potential engineering applications, and develop thermofluid equipment. For example, an object placed in a turbulent flow results in unsteady vortices shedding downstream. These vortices carry both momentum and heat. This results in a flow field with unsteady large-scale vortex motions added to the turbulent components. The thermal flow field resulting from this mutual relationship is complex. For detailed investigation of such complex thermal flow fields, laser-based velocity measurements (LDV, PIV) and temperature measurement (LIF) are performed to create a thermal-flow-field database and enhance understanding of these phenomena.
■Topic 2
involves research on the effectiveness of positioning artificial devices in a thermal flow field. In order to investigate the flow mechanisms, small actuators positioned in the flow field are operated to reduce the size of the circulation region of flow with inferior heat transfer or are applied to the flow field around a wing to help avoid stalling at high angles of attack.

■Topic 3
encompasses research to enhance the performance of thermofluid devices that use waste heat, such as cogeneration systems. In practice, the research includes pilot testing of the Rankine cycle to recover waste heat from engines, proposing a new expander, and developing new dynamic heat exchangers and heat-exchanger elements using superfine metals.


  • Convective heat transfer
  • Turbulent transport
  • Numerical simulation
  • Heat exchangers
  • Visualization measurement

  • Three-dimensional flow
  • Unsteady heat transfer
  • Heat transfer control
  • Micro-flow
  • Cogeneration