摘要
Long diversion system of hydropower station, including surge tank, inlet tunnel and penstock, is an inseparable whole system. Scale effects of distorted model on the diversion system are studied in the present paper. Based on the concept of model scale correlation and the method of parameter expression of model scale, the model scale optimization can be realized. Furthermore, a quantitative criterion for the choice of distorted model or normal model is presented. The study shows that distorted model can simultaneously satisfy the similarity conditions derived from surge wave equations, water hammer equations and wave speed equation for the diversion system. In addition, an example for the design of a practical distorted model is provided.
Long diversion system of hydropower station, including surge tank, inlet tunnel and penstock, is an inseparable whole system. Scale effects of distorted model on the diversion system are studied in the present paper. Based on the concept of model scale correlation and the method of parameter expression of model scale, the model scale optimization can be realized. Furthermore, a quantitative criterion for the choice of distorted model or normal model is presented. The study shows that distorted model can simultaneously satisfy the similarity conditions derived from surge wave equations, water hammer equations and wave speed equation for the diversion system. In addition, an example for the design of a practical distorted model is provided.
