3 papers
physics.flu-dyn2026
Improvement of reduced-order model for two-dimensional cylinder flow based on global proper orthogonal decomposition in terms of robustness and computational speed
Yuto Nakamura, Shintaro Sato, Naofumi Ohnishi
Reduced-order models (ROMs) are widely used in fluid engineering to enable rapid prediction of flow fields for parametric analysis, design optimization, and control applications. P…
physics.flu-dyn2025
On the conservation of physical properties in operator interpolation of parameterized hydrodynamic systems
Yuto Nakamura, Shintaro Sato, Naofumi Ohnishi
Reduced-order models (ROMs) that capture changes in fluid systems due to variations in parameters, such as the Reynolds number or the shape of a stationary body placed in the flow,…
physics.flu-dyn2025
Energy transfer and budget analysis for transient process with phase-averaged reduced-order model
Yuto Nakamura, Yuma Kuroda, Shintaro Sato +1
We derive a phase-averaged representation of transient flows based on the eigenmodes of a data-driven linear operator that approximates the Navier-Stokes dynamics. In performing ph…