In this paper,some engineering problems arising from hydraulics and the design of hy- draulic structures are proposed,in accordance with the viewpoint of cybernetics,as the shape-control problems for distributed param...In this paper,some engineering problems arising from hydraulics and the design of hy- draulic structures are proposed,in accordance with the viewpoint of cybernetics,as the shape-control problems for distributed parameter system(DPS),whose solution is obtained using BEM-Optimization technique.As a classical example,the problem of flow over a weir is converted first into a shape-con- trol problem,which is then converted into an optimization problem to be solved.Computational results show that the BEM-Optimization method is an efficient way to solve shape-control problems for DPS, which not only can avoid the tedious process of trial and error or iteration,but also has high accuracy and less CPU consumption.For the problem of flow over a weir,the stream function,the free surface profile and the unknown flow-rate can be found simultaneously.展开更多
文摘In this paper,some engineering problems arising from hydraulics and the design of hy- draulic structures are proposed,in accordance with the viewpoint of cybernetics,as the shape-control problems for distributed parameter system(DPS),whose solution is obtained using BEM-Optimization technique.As a classical example,the problem of flow over a weir is converted first into a shape-con- trol problem,which is then converted into an optimization problem to be solved.Computational results show that the BEM-Optimization method is an efficient way to solve shape-control problems for DPS, which not only can avoid the tedious process of trial and error or iteration,but also has high accuracy and less CPU consumption.For the problem of flow over a weir,the stream function,the free surface profile and the unknown flow-rate can be found simultaneously.
