基于Pro/E的水轮机尾水管肘管部分的三维造型

针对水轮机内部流场CFD数值模拟及工程实际制造需要,对弯肘型尾水管的三维造型进行分析与研究,发现常用的造型方法过程繁琐,且不便于修改流道也不易光滑.本文提出一种新的造型方法,不仅克服了常用方法的弊端,而且造型过程简洁直观、生成的型面平顺光滑,修改过程灵活,适应性强,可更精确地实现设计意图.经实例造型与CFD流场模拟验证,提出的方法不仅设计出的尾水管内部水流运动符合设计假定,其流场分布与理论分析相符,而且所设计出的尾水管流道平顺光滑,流态良好.

3-D Hydraulic Turbine Draft Tube Based on Pro/E

For the sake of CFD simulation on the turbine flow field and practical manufacturing,the 3-D modeling of bent-elbow draft tube was analyzed,which showed that the common methods have a fussy process,not easy to modify and smooth.Therefore,this paper proposed a new method that overcomes the defect of the common method,has simple process,generates smooth surface,modifies flexible,and has a large adaptability.So the design intent can be more accurately realize through this method.Validated by instance and CFD a...