7. Optical methods for determining the concentration and particle size

N.Y. Bokuchava, A.V. Terentjev, L.A. Feldberg
LLC «ALSTOM Power turbomachines», Russia

Several methods of the inverse solution of a light extinction system of equation for the initial condensation in flow

Comparative analysis of these three methods is presented in the paper. Numerical simulation for different types of droplet distribution is carried out. The methods’ uncertainty is analyzed by a numerical experiment and the results are presented. Estimation of the integral method efficiency was made in terms of refractive index dispersion. Besides, validation test performed to evaluate the influence of the multiple scattering on the application of Bouguer law.
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