Influence of moisture content on reflectance of granular materials. Part II: optical measurements and modelling
In some fields, it’s important to control the moisture content of granular materials without any invasive method. Moisture content is suspected to play a role in the occurrence of some unwanted phenomena like remobilization of particles on rock walls in caves for example. The hygrothermal conditions...
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| Veröffentlicht in: | Granular matter 2016-08, Vol.18 (3), p.1, Article 39 |
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| creator | Garay, Helene Monnard, Amandine Lafon-Pham, Dominique |
| description | In some fields, it’s important to control the moisture content of granular materials without any invasive method. Moisture content is suspected to play a role in the occurrence of some unwanted phenomena like remobilization of particles on rock walls in caves for example. The hygrothermal conditions are important as they can modify the moisture content of the granular materials on the wall leading to a humidification or at the contrary to a drying of the powder. In this study, optical measurements are used to characterize a wet powder during its drying process. Different steps of this dynamic drying process are modelled and thanks to an adaptation of the existing Melamed’s model of scattering of light by a particulate medium, simulation results are compared with instrumental measures. The modelling of such a system allows the estimation of moisture content of a granular material and brings information about the localization of water in the particulate medium. |
| doi_str_mv | 10.1007/s10035-016-0649-6 |
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Different steps of this dynamic drying process are modelled and thanks to an adaptation of the existing Melamed’s model of scattering of light by a particulate medium, simulation results are compared with instrumental measures. 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| subjects | Complex Fluids and Microfluidics Engineering Fluid Dynamics Engineering Sciences Engineering Thermodynamics Foundations Geoengineering Granular materials Heat and Mass Transfer Hydraulics Industrial Chemistry/Chemical Engineering Materials Materials Science Moisture content Optical measuring instruments Optics Original Paper Particle physics Physics Physics and Astronomy Soft and Granular Matter |
| title | Influence of moisture content on reflectance of granular materials. Part II: optical measurements and modelling |
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