Roadmap on multiscale materials modeling

E Van Der Giessen, PA Schultz, N Bertin… - … and Simulation in …, 2020 - iopscience.iop.org
Modeling and simulation is transforming modern materials science, becoming an important
tool for the discovery of new materials and material phenomena, for gaining insight into the …

Compressive sensing adaptation for polynomial chaos expansions

P Tsilifis, X Huan, C Safta, K Sargsyan… - Journal of …, 2019 - Elsevier
Abstract Basis adaptation in Homogeneous Chaos spaces rely on a suitable rotation of the
underlying Gaussian germ. Several rotations have been proposed in the literature resulting …

[HTML][HTML] A review of uncertainty quantification and its applications in numerical simulation of scramjet combustor

L Li, L Zhang, B Zhang, H Liu, Z Zheng - International Journal of …, 2023 - Elsevier
Engine design heavily relies on numerical simulation of engine environments, which greatly
accelerates the design iteration and increases efficiency. Nonetheless, for a long time, the …

Embedded model error representation for Bayesian model calibration

K Sargsyan, X Huan, HN Najm - International Journal for …, 2019 - dl.begellhouse.com
Model error estimation remains one of the key challenges in uncertainty quantification and
predictive science. For computational models of complex physical systems, model error, also …

An ensemble Synthetic Eddy Method for accurate treatment of inhomogeneous turbulence

KA Schau, C Johnson, J Muller, JC Oefelein - Computers & Fluids, 2022 - Elsevier
An ensemble approach to generating turbulent inflow boundary conditions using the
Synthetic Eddy Method is proposed that improves signal accuracy in recovering target …

Surrogate approach to uncertainty quantification of neural networks for regression

M Kang, S Kang - Applied Soft Computing, 2023 - Elsevier
Uncertainty quantification is essential in preventing inaccurate predictions of neural
networks. A vanilla neural network for regression does not intrinsically provide explicit …

Compressive sensing with cross-validation and stop-sampling for sparse polynomial chaos expansions

X Huan, C Safta, K Sargsyan, ZP Vane, G Lacaze… - SIAM/ASA Journal on …, 2018 - SIAM
Compressive sensing is a powerful technique for recovering sparse solutions of
underdetermined linear systems, which is often encountered in uncertainty quantification …

Bayesian nonlocal operator regression: A data-driven learning framework of nonlocal models with uncertainty quantification

Y Fan, M D'Elia, Y Yu, HN Najm… - Journal of Engineering …, 2023 - ascelibrary.org
We consider the problem of modeling heterogeneous materials where microscale dynamics
and interactions affect global behavior. In the presence of heterogeneities in material …

Variance-based sensitivity analysis of oil spill predictions in the Red Sea region

MAER Hammoud, HVR Mittal, O Le Maître… - Frontiers in Marine …, 2023 - frontiersin.org
To support accidental spill rapid response efforts, oil spill simulations may generally need to
account for uncertainties concerning the nature and properties of the spill, which compound …

[HTML][HTML] A novel robust aerodynamic optimization technique coupled with adjoint solvers and polynomial chaos expansion

W Zhang, W Qiang, Z Fanzhi, YAN Chao - Chinese Journal of Aeronautics, 2022 - Elsevier
Uncertainty is common in the life cycle of an aircraft, and Robust Aerodynamic Optimization
(RAO) that considers uncertainty is important in aircraft design. To avoid the curse of …