Certified Reduced-Order Surrogates and Stability Margins in Viscous Incompressible Flow and Fluid–Structure Interaction
arXiv:2602.15059v1 Announce Type: new Abstract: Let $(u,p)$ solve the incompressible Navier–Stokes equations in a regime in which an energy inequality is available and each constant in that inequality is computable from declared data. We construct a reduced-order model $u_n$ constrained so that its discrete evolution satisfies a certified energy inequality. This certificate yields global-in-time boundedness of the ROM energy and a regime-of-validity test that fails when a stated hypothesis fails. It follows that one can attach a computable […]