含沙河流中轴流式转轮优化设计

OPTIMIZING DESIGN AXIAL RUNNER THAT USED IN THE SANDINESS WATER

从流体动力学出发 ,研究了水轮机过流部件中的沙水运动、包括泥沙磨损机理、流动特性等。分析和掌握它们间的关系 ,根据这些特征参数间的关系 ,利用多目标函数最优化理论 ,建立含沙河流中水轮机过流部件最佳耐磨损能力和最优效率优化设计的数学模型 ,提出求解此数学模型的数值计算方法。用奇点分布法进行翼型骨线积分计算 (无限薄 ) ,综合考虑泥沙磨损的影响 ,在所得翼型骨线上进行加厚得到翼型。本文论述的方法和计算公式正确有效 ,不仅适用于传统人工设计含沙水中转轮计算 ,更适用于设计含沙河中转轮的计算机计算。

Based On the hydrokinetics and the multiphase flow theory,the paper studied the motion Of sand and water's in the axial flow turbine,silt wear and the feature Of flow.It also analysed the relationship among them,optimizes parameters Of the flow way,It utilizes the method of singularity distribution to design the runner bone line of the axial flow turbine,considers the effect of silt,and then get the blade.The methods and the calculate formulas are precise and validit they can be used to trandi Tiona hydraulic design,especially used by the computer.