基于形状匹配优化设计的仿生叶轮力学性能分析

Dynamic performance analysis of bionic impeller based on optimized design and shape matching

通过研究蛇怪蜥蜴踏水过程和仿生试验分析,构想出新型非直板型的仿生叶轮机构,基于计算流体力学理论构建动力学模型,运用基于欧拉网格的流体体积法和动网格技术,通过求解多相体积分数的连续方程实现力学模型的最终求解。通过研究四种类型仿生叶轮在不同参数下的力学特性及其变化规律,为仿生叶片的最优化设计提供技术基础。

Through the research on the basilisk lizard treading water process and the analysis of the bionic trial,a new type bionic impeller machine with non-straight board was designed.The dynamic model was established with the theory of the Computational Fluid Dynamics(CFD).The VOF model and dynamic mesh update method was applied to solve the continuum equations to gain the dynamic performance of the bionic impeller with different shape.This study grounded a base for the optimized design of the bionic vane through analyzing the influence on dynamic performance from different parameters of the bionic impeller.