Scattering of electromagnetic radiation in particulate laden fluids

Powder Temperature, Size, and Number Density in Laser-Driven Reactions

“…The Lorenz-Mie scattering theory can be applied to the scattering of light by a cloud of spherical particles if the following three conditions are met (Jones, 1979):…”

“…Condition 2 is almost always valid for random systems (Jones, 1979). But, condition 3 requires that the turbidity be less than 0.1 (Kerker, 1969) and is not generally met by regions of the clouds of particles under study.…”

Monitoring Power Plant Efficiency Using the Microwave-Excited Thermal-Acoustic Effect to Measure Unburned Carbon

“…Under such circumstances, quantitative analysis of divided solid materials, such as powders, granules, or fibers, is extremely difficult. However, for radiation wavelength, λ, long compared to the diameter, D, of particles (D/λ << 1), Rayleigh scattering occurs, so R a is independent of particle diameter [11]. For the particle size range of interest to many industries (D = 2 -2000 µm),…”

Monochromatic Absorption of Luminous Flames

“…Thermal radiation from particulate laden media often plays an appreciable role in industrial and atmospheric problems involving fluidized beds, oil and gas-fired furnaces, radiative burners, solid propellant rockets, gas turbine combustors, internal combustion engines, natural fires, clouds, fog, and dust (van de Hulst, 1957;Hottel and Sarofim, 1967;Sarofim and Hottel, 1978;Jones, 1979;Liou, 1980;Bayvel and Jones, 1981;Bohren and Huffman, 1983;and Sarofirn, 1988). The radiation in these problems depends on the spectral (volume or mass) coefficients which can be obtained from the classical Lorenz-Mie (LM) theory for isotropic, homogeneous spectral particles.…”