摘要
介绍了基于Volterra级数的尾流激励叶片气动力降阶模型,用于上游尾流激励下叶片气动载荷的快速计算。用一个叶片的算例验证了该降阶模型,通过不同流速的算例对比发现:该降阶模型可以快速准确地描述尾流激励引起的叶片气动力,流速或流场结构不是影响该气动力降阶模型精度的关键,而上游尾流扰动是否满足小扰动假设是保证该气动力降阶模型精确的关键。
A Volterra reduced order model(ROM)for blade to upstream wake is introduced to calculate blade aerodynamic forces due to upstream wake excitation.A blade example is used to verify the proposed ROM.By test cases of different maximum flow speeds,it is found that the proposed ROM can accurately describe the aerodynamic forces due to upstream wakes at all speed,only if the wake perturbation satisfy small perturbation requirement.
作者
李立州
张新燕
张曙娟
杨明磊
罗骁
原梅妮
LI Li-zhou;ZHANG Xin-yan;ZHANG Shu-juan;YANG Ming-lei;LUO Xiao;YUAN Mei-ni(School of Mechatronic Engineering,North University of China,Taiyuan 030051,China;Shanxi North Mechanical Manufacture Co,Ltd,,Taiyuan 030009,China)
出处
《科学技术与工程》
北大核心
2018年第18期118-125,共8页
Science Technology and Engineering
基金
国家自然科学基金(51775518)
飞行器结构完整性技术工业和信息化部重点实验室项目资助