1993 Fiscal Year Final Research Report Summary
Refractivity Matcing of Water and Transparent Solid Particles and its Application to Measurement of Liquid-Solid Two-Phase Flow
| Project/Area Number |
04805051
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Hydraulic engineering
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| Research Institution | Kinki University |
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Principal Investigator |
ETOH Takeharu Kinki Univ., Civil Engineering, Professor, 理工学部・土木工学科, 教授 (20088412)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEHARA Kohsei ditto Civil Engineering, Res.Assoc., 理工学部・土木工学科, 助手 (50216933)
TSUBAKI Takayuki ditto Applied Chemistry, Professor, 理工学部・応用化学科, 教授 (40088373)
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| Project Period (FY) |
1992 – 1993
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| Keywords | refractivity / water / tranparent materials / 固液2相流 |
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| Research Abstract |
A light beam passing through a transparent body in water bends by difference in refracitivity indices of water and the material, which restrains use of optical hydrometry such as flow visualization techniques and laser Doppler velocimetry. Mctching refractivity can be realized both by adding a solvant to water to increase the refractivity and by searching or developing lower refractive and highly tranparent materials. Solvants change physical properties of water. Some of them are pollutive when released to public water bodies after experiments. Refractive index of a material depends on temperature, light-wave frequency, etc.
This research project presented a list of materials potentially applicable to refractivity matching between water and tranparent bodies with additionabal information to produce, use and treat them.
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