34 citations · 74 across the 7 of their papers we have counts for
6 papers · 1 filter
A fast and accurate domain-decomposition nonlinear manifold reduced order model
Alejandro N. Diaz, Youngsoo Choi, Matthias Heinkenschloss
This paper integrates nonlinear-manifold reduced order models (NM-ROMs) with domain decomposition (DD). NM-ROMs approximate the full order model (FOM) state in a nonlinear-manifold…
Local Lagrangian reduced-order modeling for Rayleigh-Taylor instability by solution manifold decomposition
Siu Wun Cheung, Youngsoo Choi, Dylan Matthew Copeland +1
Rayleigh-Taylor instability is a classical hydrodynamic instability of great interest in various disciplines of science and engineering, including astrophyics, atmospheric sciences…
Efficient nonlinear manifold reduced order model
Youngkyu Kim, Youngsoo Choi, David Widemann +1
Traditional linear subspace reduced order models (LS-ROMs) are able to accelerate physical simulations, in which the intrinsic solution space falls into a subspace with a small dim…
Component-wise reduced order model lattice-type structure design
Sean McBane, Youngsoo Choi
Lattice-type structures can provide a combination of stiffness with light weight that is desirable in a variety of applications. Design optimization of these structures must rely o…
Space-time reduced order model for large-scale linear dynamical systems with application to Boltzmann transport problems
Youngsoo Choi, Peter Brown, Bill Arrighi +1
A classical reduced order model for dynamical problems involves spatial reduction of the problem size. However, temporal reduction accompanied by the spatial reduction can further…
Accelerating design optimization using reduced order models
Youngsoo Choi, Geoffrey Oxberry, Daniel White +1
Although design optimization has shown its great power of automatizing the whole design process and providing an optimal design, using sophisticated computational models, its proce…