Evaluation of a Computerized Technique for Determining Particle Distribution Parameters from Aerosol Mass Decay Data.
Technical rept. Jun 69-May 70,
EDGEWOOD ARSENAL MD
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A computerized technique was evaluated for determining the particle distribution parameters from the inversion of aerosol mass decay data. These estimates of the distribution parameters were derived by applying a least squares solution to the nonlinear decay data. This technique was applied to both theoretical and experimental mass decay data for stirred aerosols in a closed chamber. The effects of variations in the experimental input decay data or the derived particle characterization was studied. It was found that 1 this computerized inversion technique will give a unique fit to nonlinear data described by an equation which can be integrated in closed form, 2 this technique cannot deduce the mathematical description of the initial particle distribution form, since this equation is assumed a priori, but it will give a qualitative description of an aerosols modal characteristics, and 3 within the limits imposed by the experimental input data this technique will accurately define basic aerosol characteristics. Author
- Computer Programming and Software
- Chemical, Biological and Radiological Warfare