2004 Volume 47 Issue 3 Pages 631-636
A method to estimate the complex refractive indices of dielectric aerosols is developed. The three-dimensional radiative transfer problem in an absorbing-scattering medium is solved by the Monte Carlo method. Mie scattering theory is used to handle particle scattering and absorption. Magnesium oxide aerosol, with its well-known complex index of refraction, is selected as an example of a dielectric aerosol. Magnesium is burnt to produce MgO aerosol and the transmission of the radiation from a black body furnace through the aerosol layer is measured. The analytical results of the transmitted energy profiles along the wall facing the emission source, a black body furnace, were obtained for a wide range of complex indices of refraction and compared with the experimental results. It is shown that the value of the complex refractive index of an aerosol can be estimated.
JSME international journal. Ser. 1, Solid mechanics, strength of materials
JSME international journal. Ser. A, Mechanics and material engineering
JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing
JSME International Journal Series A Solid Mechanics and Material Engineering