Light Scattering in Combustion: New Developments

Jones, Alan R.

doi:10.1007/978-3-319-70808-9_6

Cited by 1 publication

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References 214 publications

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“…In order to construct the reflectance predicting model, the radiation properties of a single particle, particle cloud and biomimetic materials need to be analyzed successively. The dimensions of the TiO 2 and Cr 2 O 3 particles are comparable to the wavelength of the electromagnetic wave in the solar spectrum, and Mie scattering process occurs when solar irradiation transports into the biomimetic materials containing these particles [22,23]. Therefore, the Lorenz-Mie scattering theory can be adopted to analyze the radiation properties of the single particle.…”

Section: Radiation Propertiesmentioning

confidence: 99%

Preparation and optimization of biomimetic materials simulating solar spectrum reflection characteristics of natural leaves

2020

J Mater Sci

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Solar spectrum reflection characteristics of natural leaves are caused by the absorption and scattering processes of incident radiation in the leaves. To realize hyperspectral camouflage in the background of vegetation, two types of biomimetic materials are prepared. One type utilizes Cr 2 O 3 particles to simultaneously simulate the absorption characteristics in the visible light band and the scattering characteristics in the solar spectrum band and is named as COG-BM. The other type contains chlorophyll and TiO 2 particles to simulate the absorption and scattering characteristics in the above two bands, respectively, and is named as CH/TD-BM. The measured results show that both can simulate the solar spectrum reflection characteristics of the leaves approximately. In order to optimize the bionic performance, the reflectance predicting model was constructed with Lorenz-Mie scattering and four-flux theories. The simulation results show that with the increase in particle volume fraction, the reflectance of COG-BM in the visible light band is maintained at almost the same level as that of the leaves because of the simultaneous increase in absorption and scattering coefficients. Nevertheless, the reflectance of CH/TD-BM increases significantly, because the absorption coefficient of CH/TD-BM is constant with the increase in the particle volume fraction, and the scattering coefficient enhances remarkably. More interestingly, with the increase in particle size, the near-infrared plateau of COG-BM and CH/TD-BM is closer to horizontal, exhibiting greater similarity to the natural leaves. Moreover, the water absorption characteristics at 1450 and 1940 nm become more significant with the increase in water content.

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Section: Radiation Propertiesmentioning

confidence: 99%

Preparation and optimization of biomimetic materials simulating solar spectrum reflection characteristics of natural leaves

2020

J Mater Sci

View full text Add to dashboard Cite

show abstract

Light Scattering in Combustion: New Developments

Cited by 1 publication

References 214 publications

Preparation and optimization of biomimetic materials simulating solar spectrum reflection characteristics of natural leaves

Preparation and optimization of biomimetic materials simulating solar spectrum reflection characteristics of natural leaves

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