U.S. water quality policy includes the concept of a mixing zone, a limited area or volume of water where the initial dilution of a discharge occurs. The Cornell Mixing Zone Expert System (CORMIX1) was developed to predict the dilution and trajectory of a submerged single port discharge of arbitrary density (positive, neutral, or negative) into a stratified or uniform density ambient environment with or without crossflow. CORMIX1 uses knowledge and inference rules based on hydrodynamic expertise to classify and predict buoyant jet missing. CORMIX1 gathers the necessary data, checks for data consistency, assembles and executes the appropriate hydrodynamic simulation models, interprets the results of the simulation in terms of the legal requirements including toxic discharge criteria, and suggests design alternatives to improve dilution characteristics. The model, with its emphasis on rapid initial mixing, assumes a conservative pollutant discharge neglecting any physical, chemical, or biological reaction or decay process. The predictive results can be readily converted, however, to adjust for first-order reaction processes.

Distributed to depository libraries in microfiche. "February 1990." "Cooperative agreement no. CR813093." "EPA/600/3-90/012." Includes bibliographical references (pages 186-191).