HYBRID SIMULATION METHOD OF OCEAN OUTFALL SYSTEM FOR THE NEAR AND FAR FIELD

摘要

A hybrid simulation method of an ocean outfall system for the near and far fields is provided to offer a hybrid model of the near and far fields to analyze simultaneously an initial mixing procedure, a transferring and a distributing procedure of the underwater discharge sewage. Various kinds of discharge conditions about the underwater discharge sewage of an ocean outfall system are inputted. The speed and transfer time of tidal currents are calculated by inputting the discharge conditions into a hydrodynamics model. A shape of a discharge hole for underwater discharge is judged. In a case that an individual buoyant jet must be interpreted because of an interval of a distribution tube which is sufficiently big as the shape of the discharge hole, the data is simulated by applying a jet integral model. In the case that a line plume is able to be supposed by realizing the combination between buoyant jets at a short section of the discharge hole, the data is simulated by applying a property length model. The data simulated by the jet integral model and the property length model is simulated by applying the data to a particle tracing model. If the simulation of the particle tracing model is completed, a conversion process of a concentration coordinate system is performed, and a mixing procedure is interpreted.