Author(s): A. H. Azimi; F. Azizi; A. Etemad-Shahidi
Linked Author(s):
Keywords: Numerical simulation; Dense jets; Length scale model; CORMIX
Abstract: Ocean disposal through multi-port diffusers can rapidly reduced the immediate contaminant concentration around the outfall. In this study, an empirical equation is presented to predict dilution based on dimensional and length scale arguments. Rv is the ratio of ambient volume flux to the discharge volume flux is one the important dimensionless parameters. The minimum dilution plotted against Rv indicated a relationship between Rv and the ratio of measured dilution to the Froude number, F. This empirical equation reported herein can be readily used in outfall design. For validation of the new prediction formula, the experimental results obtained from a dense mixture of gypsum in the Indian Ocean at Richards Bay, are numerically simulated with an expert system (CORMIX) and compared with proposed formulation. The results show that the proposed equation outperforms a well-known model such as CORMIX.
Year: 2005