Dimensionality reduction for complex models via Bayesian compressive sensing

K Sargsyan, C Safta, HN Najm… - International Journal …, 2014 - dl.begellhouse.com
Uncertainty quantification in complex physical models is often challenged by the
computational expense of these models. One often needs to operate under the assumption …

[图书][B] Advanced reduced order methods and applications in computational fluid dynamics

G Rozza, G Stabile, F Ballarin - 2022 - SIAM
Reduced order modeling is an important and fast-growing research field in computational
science and engineering, motivated by several reasons, of which we mention just a few …

Comparison of Overwing and Underwing Nacelle Aeropropulsion Optimization for Subsonic Transport Aircraft

J Ahuja, C Hyun Lee, C Perron, DN Mavris - Journal of Aircraft, 2024 - arc.aiaa.org
This research compares a forward-mounted overwing nacelle configuration to a
conventional underwing nacelle for a single-aisle transport aircraft. We focus on …

Assessing the performance of Leja and Clenshaw-Curtis collocation for computational electromagnetics with random input data

D Loukrezis, U Römer… - International Journal for …, 2019 - dl.begellhouse.com
We consider the problem of quantifying uncertainty regarding the output of an
electromagnetic field problem, in the presence of a large number of uncertain input …

Stochastic multiobjective optimization on a budget: Application to multipass wire drawing with quantified uncertainties

P Pandita, I Bilionis, J Panchal… - International Journal …, 2018 - dl.begellhouse.com
Design optimization of engineering systems with multiple competing objectives is a
painstakingly tedious process especially when the objective functions are expensive-to …

High-dimensional multidisciplinary design optimization for aircraft eco-design/Optimisation multi-disciplinaire en grande dimension pour l'\'eco-conception avion en …

S Paul - arXiv preprint arXiv:2402.04711, 2024 - arxiv.org
Résumé D e nos jours, un intérêt significatif et croissant pour améliorer les processus de
conception de véhicules s' observe dans le domaine de l'optimisation multidisciplinaire …

A gradient-based sampling approach for dimension reduction of partial differential equations with stochastic coefficients

M Stoyanov, CG Webster - International Journal for Uncertainty …, 2015 - dl.begellhouse.com
We develop a projection-based dimension reduction approach for partial differential
equations with high-dimensional stochastic coefficients. This technique uses samples of the …

An active learning SPH method for generalized Newtonian free surface flows

X Dong, X Wang, J Ouyang - Physics of Fluids, 2024 - pubs.aip.org
This paper presents an active learning smoothed particle hydrodynamics (ALSPH) method
to simulate generalized Newtonian free surface flows. First, an improved smoothed particle …

Multifidelity Methodology for Reduced-Order Models with High-Dimensional Inputs

B Mufti, C Perron, DN Mavris - AIAA Journal, 2024 - arc.aiaa.org
In the early stages of aerospace design, reduced-order models (ROMs) are crucial for
minimizing computational costs associated with using physics-rich field information in many …

High-dimensional multidisciplinary design optimization for aircraft eco-design

P Saves - 2024 - hal.science
Description: Ph. D on Gaussian Process kernels for Bayesian optimization in high dimension
with mixed and hierarchical variables at ISAE-SUPAERO. Keywords: Gaussian process …