
8 Dispersion Problems
8.1 INTRODUCTION
In this chapter the problem of dispersion in general will be studied.
Dispersion is the phenomenon by which the amount of a given
variable, such as a substance dissolved in a
fluid,
changes through the
domain. This phenomenon involves processes such as diffusion,
convection, decay, etc., which added together produce the total
dispersion.
Classical dispersion processes include temperature and mass
transfer. In recent years the increase in the amount of waste deposited
in estuaries from industry and urban developments has led to
concern regarding the quality of water in these
areas.
It has therefore
becom ...