Algorithms and analyses for stochastic optimization for turbofan noise reduction using parallel reduced-order modeling
Sign Up to like & getrecommendations! Published in 2017 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2017.02.030
Abstract: Abstract Simulation-based optimization of acoustic liner design in a turbofan engine nacelle for noise reduction purposes can dramatically reduce the cost and time needed for experimental designs. Because uncertainties are inevitable in the design process,… read more here.
Keywords: reduced order; stochastic optimization; noise reduction; parallel reduced ... See more keywords
Parametric inverse impulse response based on reduced order modeling and randomized excitations
Sign Up to like & getrecommendations! Published in 2020 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2019.106392
Abstract: Abstract This paper is concerned with the computation of the inverse impulse response of a parametrized structural dynamics problem using reduced-order modeling and randomized excitations. A two-stages approach is proposed, involving the solution of both… read more here.
Keywords: impulse response; reduced order; inverse impulse; order modeling ... See more keywords
Reduced order modeling for the dynamics of jointed structures through hyper-reduced interface representation
Sign Up to like & getrecommendations! Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.107249
Abstract: Abstract One strategy to develop both accurate and computationally tractable models of jointed structures is reduced order modeling through hyper-reduced representations of the interfaces in contact. Hyper reduction refers to reduction techniques that result in… read more here.
Keywords: reduced order; order; hyper reduced; jointed structures ... See more keywords
A reduced-order modeling approach for electron transport in molecular junctions.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.9b01090
Abstract: To describe non-equilibrium transport processes in a quantum device with infinite baths, we propose to formulate the problems as a reduced-order problem. Starting with the Liouville-von Neumann equation for the density-matrix, the reduced-order technique yields… read more here.
Keywords: reduced order; approach electron; order; transport ... See more keywords
Reduced-Order Modeling of Unsteady Aerodynamics for an Elastic Wing with Control Surfaces
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Aerospace Engineering"
DOI: 10.1061/(asce)as.1943-5525.0000682
Abstract: AbstractIn this paper, a reduced-order modeling approach based on computational fluid dynamics is presented for an elastic wing with control surfaces in the transonic regime. To treat the computational fluid dynamics grid around the geometrical… read more here.
Keywords: reduced order; control surfaces; control; order modeling ... See more keywords
Reduced-order modeling of plasma ionization due to multifluid, collisional-radiative effects
Sign Up to like & getrecommendations! Published in 2021 at "Physics of Plasmas"
DOI: 10.1063/5.0029881
Abstract: Collisional rate calculations which account for relative multifluid streaming were implemented in a collisional-radiative model that is applicable for a generalized set of atomic elements. The rate modifications for multifluid streaming were derived in two… read more here.
Keywords: reduced order; rate; ionization; order modeling ... See more keywords
Reduced-order modeling of fluid flows with transformers
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Fluids"
DOI: 10.1063/5.0151515
Abstract: Reduced-order modeling (ROM) of fluid flows has been an active area of research for several decades. The huge computational cost of direct numerical simulations has motivated researchers to develop more efficient alternative methods, such as… read more here.
Keywords: fluid flows; order modeling; modeling fluid; reduced order ... See more keywords
Fractional-Order Modeling and Analysis of a Three-Phase Voltage Source PWM Rectifier
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2965317
Abstract: In this paper, the fractional-order modeling and analysis of a three-phase voltage source PWM rectifier (VSR) are researched considering the fractional-order characteristics of actual inductors and capacitors. While the Caputo fractional calculus operator is used… read more here.
Keywords: three phase; modeling analysis; order; order modeling ... See more keywords
Matrix Interpolation-Based Reduced-Order Modeling of a Levitation Device With Eddy Current Effects
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2018.2807391
Abstract: In this paper, reduced order modeling (ROM) based on the proper orthogonal decomposition (POD) are applied to an eddy-current problem with movement. A classical magnetodynamic finite-element formulation based on the magnetic vector potential is used… read more here.
Keywords: order modeling; reduced order; matrix interpolation; eddy current ... See more keywords
Reduced-Order Modeling Based on Hybrid Snapshot Simulation
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Computational Methods"
DOI: 10.1142/s0219876220500292
Abstract: This paper presents a hybrid snapshot simulation methodology to accelerate the generation of high-quality data for proper orthogonal decomposition (POD) and reduced-order model (ROM) development. T... read more here.
Keywords: hybrid snapshot; reduced order; snapshot simulation; order modeling ... See more keywords
Non-intrusive reduced-order modeling for fluid problems: A brief review
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering"
DOI: 10.1177/0954410019890721
Abstract: Despite tremendous progress seen in the computational fluid dynamics community for the past few decades, numerical tools are still too slow for the simulation of practical flow problems, consuming thousands or even millions of computational… read more here.
Keywords: reduced order; order; fluid; non intrusive ... See more keywords