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physics.comp-ph2019★ 2 cited
Comparisons of Two Reduced-Order Models for Linearized Unsteady Aerodynamic Identification
Jiaqing Kou, Weiwei Zhang
This paper compares the performance of two unsteady aerodynamic reduced-order models (ROMs), namely linear Volterra series and the autoregressive with exogenous input (ARX) model,…
physics.comp-ph2018
Mode Multigrid - A novel convergence acceleration method
Yilang Liu, Weiwei Zhang, Jiaqing Kou
This paper proposes a mode multigrid (MMG) method, and applies it to accelerate the convergence of the steady state flow on unstructured grids. The dynamic mode decomposition (DMD)…