风力机翼型S809绕流流动特性的POD和DMD对比分析OA北大核心CSTPCD
Comparative analyses of unseady flow fields around wind turbine airfoil S809 using POD and DMD
失速时的流动分离现象对风力机叶片的气动性能有重要影响,S809 作为典型水平轴风力机翼型,在临界失速攻角下气动性能会大幅降低.基于流动特征提取的非定常流场降阶模型(reduced-order model,ROM)是进一步深入了解非定常流动的重要手段.本文通过计算流体力学方法得到轻、深失速攻角下翼型的流动特征,对时变速度场进行本征正交分解(proper orthogonal decomposition,POD)和动态模态分解(dynamic mod…查看全部>>
The flow separation remarkbaly undermines wind turbines'aerodynamic performance thus requires.In order to develop flow control strategies,fundelmental research on the unsteady flow separation is abosutely necessary,and the Reduced-Order Model(ROM)methods offers a tool.In this paper,the unsteady flow fields around S809,a typical horizontal axis wind turbine airfoil,at deep and shallow stall angles of attack are obtained numerically and further analyzed by pro…查看全部>>
李凯迪;孙晓晶
上海理工大学能源与动力工程学院,上海 200093||上海市动力工程多相流动与传热重点实验室,上海 200093上海理工大学能源与动力工程学院,上海 200093||上海市动力工程多相流动与传热重点实验室,上海 200093
能源与动力
风力机翼型绕流计算流体力学降阶模型本征正交分解动态模态分解
wind turbine airfoil flowunsteady flow separationreduced-order modelproper orthogonal decomposition(POD)dynamic mode decomposition(DMD)
《空气动力学学报》 2024 (3)
55-68,14
国家自然科学基金面上项目(52176194)
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