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physics.flu-dyn2025
Optimally time-dependent modes of vortex gust-airfoil interactions
Yonghong Zhong, Alireza Amiri-Margavi, Hessam Babaee +1
We find the optimally time-dependent (OTD) orthogonal modes about a time-varying flow generated by a strong gust vortex impacting a NACA 0012 airfoil. This OTD analysis reveals the…
physics.flu-dyn2023★ 1 cited
Time-Dependent Low-Rank Input-Output Operator for Forced Linearized Dynamics with Unsteady Base Flows
Alireza Amiri-Margavi, Hessam Babaee
Understanding the linear growth of disturbances due to external forcing is crucial for flow stability analysis, flow control, and uncertainty quantification. These applications typ…