GRADING EFFECTS IN CONCENTRATION MEASUREMENTS

Abstract

In analysing measured sediment concentration distributions the effect of the non-uniformity of the bottom material is frequently not taken fully into account. Examples of calculations are given to clarify the grading effect on the parameters that determine the concentration distribution <e.g. diffusion coefficient distribution). Results of a preliminary test series indicate that the particle size affects the diffusion coefficient involved. Ce(sediment) = (3 e (fluid); (3 size dependent].