Results 21 to 30 of about 24,798 (283)
Nonlinear proper orthogonal decomposition for convection-dominated flows [PDF]
The Physics of Fluids, 2021 Autoencoder techniques find increasingly common use in reduced order modeling as a means to create a latent space. This reduced order representation offers a modular data-driven modeling approach for nonlinear dynamical systems when integrated with a ...
Shady E. Ahmed +3 more
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Dissipation-optimized Proper Orthogonal Decomposition [PDF]
The Physics of Fluids, 2022 We present a formalism for dissipation-optimized decomposition of the strain rate tensor (SRT) of turbulent flow data using Proper Orthogonal Decomposition (POD).
Peder J. Olesen +4 more
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Proper orthogonal decomposition method for Schrödinger equation
Lietuvos Matematikos Rinkinys, 2013 In this paper we consider the proper orthogonal decomposition (POD) method for one-dimensional Schrödinger equation. We begin of the review of basic ideas of POD. Later this method is applied to study the linear Schrödinger equation.
Raimondas Čiegis +2 more
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Frontiers in Energy Research, 2023 The non-cavitating and cavitating wake flow of a circular cylinder, which contains multiscale vortices, is numerically investigated by Large Eddy Simulation combined with the Schnerr–Sauer cavitation model in this paper.
Guangjian Zhang +4 more
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The Physics of Fluids, 2023 In this research, the cavitating flow around a NACA0015(National Advisory Committee for Aeronautics) hydrofoil obtained by the large eddy simulation method is analyzed using the proper orthogonal decomposition (POD) theory. Various fundamental mechanisms
A. Yu +4 more
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Investigation of Proper Orthogonal Decomposition for Echo State Networks [PDF]
Neurocomputing, 2022 Echo State Networks (ESN) are a type of Recurrent Neural Network that yields promising results in representing time series and nonlinear dynamic systems. Although they are equipped with a very efficient training procedure, Reservoir Computing strategies,
J. Jordanou +3 more
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Detection of deviations origins in a heat treatment process using Proper Orthogonal Decomposition (POD) basis [PDF]
International Journal of Material Forming, 2008 It is well know that the heat treatment step of gearbox cogwheel induces distortions of the parts. In addition, some deviations of this deformation are often observed, due to unknown changes of process parameters. These deviations, and more precisely the detection of their origin, are the subject of this paper.
L. Vanoverberghe +3 more
openaire +1 more source
Shock and Vibration, 2014 This paper proposes a methodology to automatically choose the measurement locations of a nonlinear structure/equipment that needs to be monitored while operating.
T. G. Ritto
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Energy and Entropy in Turbulence Decompositions
Entropy, 2019 The role of energy and entropy in the decomposition of turbulent velocity flow-fields is shown in this paper. Decomposition methods based on the energy concept are taken into account—proper orthogonal decomposition (POD) and its extension bi ...
Václav Uruba
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Nuclear Materials and Energy, 2019 Divertor particle flux signals on divertor plates were analyzed with the multivariable analysis technique, namely, proper orthogonal decomposition (POD), to characterize the indefinite divertor footprint in the Large Helical Device.
H. Tanaka +6 more
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