DESIGN AND OPERATION OF PHYSICAL-THERMAL MODELS.

The evaluation of hydraulic structures for thermal outfalls is conducted using hydrothermal models of a physical or analytic nature to predict the ensuing temperature field. This paper reviews some aspects of current practice in physical modeling. Physical modeling has some advantage in its ability to reproduce field conditions, especially as they are affected by topography. Some aspects of site evaluation are discussed along with means of simulation. Methods of model construction are discussed in light of their effect on model operation and proper simulation of the prototype. Instrumentation requirements and data reduction methodology are reviewed and their importance to model operation emphasized.