The assessment of near-field stability, i.e. the distinction of stable or unstable conditions, is a key aspect of effluent dilution analyses and mixing zone modeling. It is especially important for understanding the behavior of the two-dimensional plumes resulting from multiport diffusers, as shown by some examples in the image on the right. Turbulent buoyant jet integral models are not in general applicable to unstable flow conditions. It is therefore essential to determine flow stability before any simulation is attempted.
The flow classification system of CORMIX determines the stability of each discharge/environment situation under consideration. The resulting flow class assures that the correct combination of regional flow modules are used to simulate the mixing zone.