Author(s): Dr. Yu Liren; Prof. Zhang Shu-Nong
Linked Author(s):
Keywords: No Keywords
Abstract: The paper mainly focuses on describing the modification made to a new depth-averaged two-equation (k-w) turbulent closure model based on the revised k-w model recently. In the case of side discharged jets with temperature difference and transverse current, the new model has been investigated numerically in detail. As a practical example of application to use the new model, the side discharge of the cooling water from three outlets into a natural river on one bank has been simulated, and the geomorphic variation under water has been treated suitably. Two depth-averaged models, k-w and k-ε have been used, the later is the unique one at present. Emphasis is placed on the comparitive research with different models under the same computational conditions. It has been veri-fied that if the discharged flowrates are relatively small, the agreement with experimental and field data simulated by the k-w model is better than by the k-ε model or other method commonly user in engineering, when the pollutant plume in the near and transitional zones was predicted.
Year: 1989