2015 Fiscal Year Final Research Report
Measurement of Physical Properties of Magnetic Fluid under Magnetic Field by Optical and Acoustic Techniques
| Project/Area Number |
25820049
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fluid engineering
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 磁気機能性ナノ流体 / 磁性流体 / 物性計測 / 強制レイリー散乱法 / UVP / 熱流動特性 |
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| Outline of Final Research Achievements |
Magnetic fluid is a colloidal dispersion which is composed of surfactant-coated nano-order particles and carrier liquid. Because the inner particles form chain-like structure by applying magnetic field, it can be expected the physical properties vary from time to time and have anisotropy. In this study, thermal diffusivity and rheological property of the magnetic fluid were attempted to measure by forced Rayleigh scattering method (FRSM) and using ultrasonic velocity profiler (UVP), respectively. Regarding thermal diffusivity, time series variation of the thermal diffusivity of magnetic fluid was successfully measured by FRSM and characteristic configuration was obtained. On the other hand, measurement of rheological property of magnetic fluid was not succeeded because of the problem of experimental system. However, characteristic streamwise variation of turbulent structure of turbulent magnetic fluid flow by applying magnetic field was successfully obtained by UVP measurement.
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| Free Research Field |
流体工学
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