Cause analysis and control of fangguanying reservoir dam upstream slope prevention destruction 察尔森水库护坡灌浆和溢流面混凝土修补
But it is thought that the mature pump inner flow numeric computation was started and then developed rapidly after the " two relative flow surface " ( the s1 and s2 ) theory presented by professor wuzhonghua 但具有完备形态的内流数值模拟,一般认为始于吴仲华教授的s1 、 s2两类相对流面理论后,叶轮机械内流数值模拟才得到了迅速发展。
In the thesis , the design method of the diagonal flow fan impeller has detailedly researched different from the previous means borrowing and extending design methods for axial flow or centrifugal type , a complete design method has presented on the basis of quasi - three dimensional design idea . the course is mainly composed of such steps as meridional surface design , inverse problem computation in meridional surface , blade shaping on stream surface , and verifying through three dimensional computation , until the design requirement is met at last 不同于以往的轴流式或离心式延长设计方法或经验方法,本文按照准三元设计的思路给出了一套完整的设计方法,即子午面设计?子午面反问题计算?斜流流面上叶片造型?三维计算验证优化,直至符合设计目标。