气固两相流离心叶轮机械磨损特性研究Study on the Wear Characteristics of the Centrifugal Impellers with Gas-solid Two-phase Flow
林建忠，梁新南，赵伯龙
Lin Jianzhong et al;
摘要(Abstract)：
采用无粘流动模型和有限元法及准三元法，求解了离心风机叶轮气流场，然后用＂单相耦合＂法并选用合适的固粒反弹模型和冲蚀磨损模型，计算了叶轮内部固粒的运动轨迹和磨损量，首次提出了在气固两相流离心叶轮中，不仅存在冲蚀磨损，同时还存在擦伤式磨粒磨损的观点，并分析了耐磨肋条的作用。本文结果对气固两相流耐磨离心叶轮机械的研制具有指导意义。由＂八·五＂国家科技攻关项目
The gas flow fields are solved by usingthe finite element method and quasi-threedimensional calculation technique with inviscid flow model. Then using the "OnewayCoupling" method, the trajectories of solidparticles and the erosion of blades are calculated with a suitable particle reboundmodel and a suitable erosion model. It isfirstly pointed out that there exists notonly erosion but also scratching abrasion incentrifugal impellers with particulate ladenf lows. The function of anti-wear sinewsadded on the blades is analyzed.
关键词(KeyWords)：
气固两相流，离心叶轮，磨损
基金项目(Foundation): “八·五”国家科技攻关项目
作者(Authors):
林建忠，梁新南，赵伯龙
Lin Jianzhong et al;