Measurement of Evaporation Coefficient of Water Using Nonlinear Sound Resonance
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- Nakamura Shigeto
- Division of Mechanical and Space Engineering, Hokkaido University
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- Inaba Masashi
- Division of Mechanical and Space Engineering, Hokkaido University
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- Watanabe Masao
- Division of Mechanical and Space Engineering, Hokkaido University
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- Fujikawa Shigeo
- Division of Mechanical and Space Engineering, Hokkaido University
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- Yano Takeru
- Department of Mechanical Engineering, Osaka University
Bibliographic Information
- Other Title
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- 非線形共鳴音波による水の蒸発係数測定
Abstract
When a liquid is in contact with its saturated vapor, evaporation or condensation takes place at the vapor-liquid interface according to a change of the liquid or vapor temperature, or the vapor pressure. To make an analysis of mass, momentum, and energy processes across the interface, we must solve the Boltzmann equation under the kinetic boundary condition at the interface. However, the kinetic boundary condition contains condensation coefficient and evaporation coefficient which have been not yet determined correctly. In this study, we propose a new method for measurement of the evaporation coefficient (condensation coefficient) near equilibrium states based on both nonlinear sound-resonance experiment and Boltzmann equation. The evaporation coefficient is determined from the amplitude of the second harmonics generated by the nonlinear effect of resonant sound wave in a cylindrical space bounded by a sound source and the vapor-liquid interface.
Journal
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- NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan
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NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan 59 (0), 71-71, 2010
National Committee for IUTAM
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Details 詳細情報について
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- CRID
- 1390001205593733888
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- NII Article ID
- 130004604612
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed