The results of 3d viscous numerical simulation show that the efficiency of new LPT decreases 2.3 percent under the low Reynolds number condition, which was compared with that of designpoint.
三维粘性数值模拟的结果显示新低压涡轮效率在高空低雷诺数情况下比设计点下降2.3个百分点。
2
In order to improve the efficiency of structural optimization, the next designpoint is determined through one dimension search after the projection direction is obtained.
为了改善结构优化的效率，在得到投影方向后通过一维搜索确定下一个点。
3
The principle, method, design process and change result to enlarge capacity of maximum efficiency running point and improve hydraulic performance of double suction pump were presented.