Results 21 to 30 of about 113,908 (298)

Some practical remarks in solving partial differential equations using reduced order schemes obtained through the POD method [PDF]

open access: yesINCAS Bulletin, 2022
In this paper we address the subject of mathematical modelling, more precisely the optimization of algorithms for numerically solving partial differential equations.
Alexandru SOLOMON   +2 more
doaj   +1 more source

The use of proper orthogonal decomposition for the simulation of highly nonlinear hygrothermal performance [PDF]

open access: yesMATEC Web of Conferences, 2019
In this paper, the use of proper orthogonal decomposition for simulating nonlinear heat, air and moisture transfer is investigated via two applications: HAMSTAD benchmarks 2 and 3.
Hou Tianfeng, Roels Staf, Janssen Hans
doaj   +1 more source

Unsteady effects at the interface between impeller-vaned diffuser in a low pressure centrifugal compressor [PDF]

open access: yesINCAS Bulletin, 2013
In this paper, Proper Orthogonal Decomposition (POD) is applied to the analysis of the unsteady rotor-stator interaction in a low-pressure centrifugal compressor.
Mihai Leonida NICULESCU, Sterian DANAILA
doaj   +1 more source

Inverse Design and Optimization of Low Specific Speed Centrifugal Pump Blade Based on Adaptive POD Hybrid Model [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
To improve the prediction accuracy of the surrogate model and reduce the calculation cost for hydraulic optimization design of centrifugal pump impeller, an inverse design and optimization method based on adaptive proper orthogonal decomposition (APOD ...
X. B. Chen, R. H. Zhang, W. F. Yang
doaj   +1 more source

The Rapid Data-Driven Prediction Method of Coupled Fluid–Thermal–Structure for Hypersonic Vehicles

open access: yesAerospace, 2021
This work demonstrates the use of Latin Hypercube Sampling and Proper Orthogonal Decomposition in combination with a Radial Basis Function model to perform on vehicle prediction coupled fluid–thermal–structure.
Jing Liu, Meng Wang, Shu Li
doaj   +1 more source

An Application of a Modified Gappy Proper Orthogonal Decomposition on Complexity Reduction of Allen-Cahn Equation

open access: yesAlgorithms, 2020
This work considers model reduction techniques that can substantially decrease computational cost in simulating parmetrized Allen–Cahn equation. We first employ the proper orthogonal decomposition (POD) approach to reduce the number of unknowns in the ...
Chutipong Dechanubeksa   +1 more
doaj   +1 more source

Spatiotemporal Characterization and Suppression Mechanism of Supersonic Inlet Buzz with Proper Orthogonal Decomposition Method

open access: yesEnergies, 2020
The buzz phenomenon of a typical supersonic inlet is analyzed using the unsteady Reynolds Average Navier-Stokes (RANS) simulation and proper orthogonal decomposition (POD) method.
Wenguo Luo   +4 more
doaj   +1 more source

Parameter Identification in Cardiac Electrophysiology Using Proper Orthogonal Decomposition Method [PDF]

open access: yes, 2011
We consider the problem of estimating some parameters (like ionic models or parameters involved in the initial stimulation) of a model of electrocardiograms (ECG) from the data of the Einthoven leads. This problem can be viewed as a first attempt to identify or to locate a pathology.
Boulakia, Muriel   +1 more
openaire   +2 more sources

Toward a unified interpretation of the “proper”/“smooth” orthogonal decompositions and “state variable”/“dynamic mode” decompositions with application to fluid dynamics

open access: yesAIP Advances, 2020
A common interpretation is presented for four powerful modal decomposition techniques: “proper orthogonal decomposition,” “smooth orthogonal decomposition,” “state-variable decomposition,” and “dynamic mode decomposition.” It is shown that, in certain ...
Arham Amin Khan   +2 more
doaj   +1 more source

Modal Decomposition Study of the Non-Reactive Flow Field in a Dual-Swirl Combustor

open access: yesEnergies, 2023
The modal decomposition study of the non-reactive flow field in a dual-swirl combustor is investigated through the large eddy simulation. The formation mechanism and function of various recirculation zones are elaborated by analyzing the time-averaged ...
Xiangzhou Feng   +3 more
doaj   +1 more source

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