采用均匀试验设计理论对鳃片倾斜角 A与B进行数值模拟方案的设计, 通过采用 Fluent 软件中的欧拉模型, 以鳃片 3上表面的泥沙速度作为考核指标, 对不同鳃片倾斜角下的分离鳃速度流场进行模拟。运用投影寻踪回归 分析法( PPR)对数值计算结果进行了分析, 得出鳃片 B倾斜角对分离鳃水沙分离效果影响是最大的, 其次是鳃片 A 倾斜角的影响; 当鳃片倾斜角的组合为 A = 60 b与 B = 45 b时, 分离鳃中的速度流场有利于水沙的快速分离且水沙分离 效果最佳。

The scheme design of numerical simulation on tilt angle Aand tilt angle Bof gill2piece applied the uniform experimental design theory. With the sediment velocity on the upper surface of gill 2piece 3 as the evaluation index, velocity flow field was sim2 ulated under different tilt angles of gill2piece through the adoption of Eulerian model provided by the Fluent software. The pro2 jection pursuit regression (PPR) was used to analyze the numerical simulation results. The results showed that the influence of angle B on the effect of water 2sediment separation in the gill 2piece separation device is the highest, followed by the tilt angle A. The velocity field of gill 2piece separation device is beneficial to increase water 2 sediment separation and the effect of water 2sedi 2 ment separation is the best under the combination of A = 60b and B = 45b.

国家 自然科学基 金( 50969009) ; 高等学 校博士学科 点专项 ( 20070758003) ; 新疆 水利水电工 程重点学科 基金资 助 ( xjslgczdx k20101202)