双流道叶轮三维逆向水力设计方法研究

Traditional design method of double channel runner is based on the velocity modulus method of mon-dimension. Owing to the special shape of double channel runner, dedign method inherited from blade type runner is not very suited for it. If impling the tradition method, the inconcidence between charts of model and wood former for manufacture would occur. The problem was found by many scholars, but resolving method is not yet found. Comparing this confusing condition of double channel runner. Centrifugal pump of blade shape developed quickly in hydraulic design method, with plenty of relatively literatures.This appliction project aims at the hydraulic design method of double channel runner, trying to improve and solve defect of tradition method, and develop a three-Dimension reverse hydraulic design method, and programing codes to design the runner with parameters in CAD software. This will unites the hydraulic design and three dimension shaping , and can implement a interface of CAD and CFD, and be availble for improving quality and efficency of runner design.

双流道叶轮的传统设计方法是基于一元理论的速度系数法。由于双流道叶轮的特殊形状，借鉴自叶片式叶轮的设计方法并不完全适用。采用传统方法设计时，会出现绘型图和制作木模的不一致，虽经许多学者指出，但目前尚未提出相对完善的解决办法。相比之下，叶片式离心泵的水力方法则发展很快，相关的文献也很多。本项目拟以双流道叶轮的水力设计方法研究为立足点，旨在完善和解决传统一元设计方法的缺陷 ，在此基础上对双流道叶轮三维逆向水力设计方法进行研究,并在相关研究成果的基础上，开发叶轮的三维参数化设计程序，将叶轮的水力设计和三维造型结合起来，实现CAD设计和CFD分析的接口，为提高叶轮的设计质量和效率提供方便。