投影寻踪回归技术在自由面重力流数值模拟和仿真中的应用

Application of Projection Pursuit Regression Technique in Modeling and Simulating Free-surface Gravity Flow

将投影寻踪回归 (PPR)建模技术用于悬板过流区自由水面的模拟和仿真 ,并与边界元法的计算结果进行了对比分析 ,得到了比较满意的结果。该技术具有计算快速简便、无需求解复杂的微分方程等特点 ,是用统计方法解决复杂工程水力学问题的有益尝试。

Free surface gravity flow has been modeled and simulated by using Projection Pursuit Regression (PPR) technique. The practical results are satisfied comparing with the results from Boundary Element Method (BEM). Resolving complexes hydraulic problem with statistical method is a good trying in this paper.