Results 21 to 30 of about 6,618 (260)

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

Mean Reattachment Length of Roof Separation Bubbles Using Proper Orthogonal Decomposition

open access: yesApplied Sciences, 2023
Investigating flow separation regions on the surfaces of three-dimensional bluff bodies in turbulent flows is important because these regions can induce significant aerodynamic loads.
Hee Jung Ham   +3 more
doaj   +1 more source

Study on Burnup Calculation Method Based on Proper Orthogonal Decomposition Reduced-order

open access: yesYuanzineng kexue jishu, 2023
The goal of high-fidelity burnup calculations is to accurately describe the nuclide composition of the reactor over its entire lifetime. As the core physics calculation method evolves to high-fidelity, the number of burnup regions will increase thousands
ZHANG Binhang1;BI Yanzhao1;GONG Hanyuan1;ZHANG Yonghong1,*;YUAN Xianbao2
doaj   +1 more source

Volumetric Proper Orthogonal Decomposition of an impinging jet using SPIV measurement [PDF]

open access: yesMATEC Web of Conferences, 2019
Impinging jets which interact with sharp edges like slotted plates can be found in ventilation and air conditioning systems. In some cases, these configurations can be a source of desirable sounds like in musical instruments.
Hamdi Jana   +8 more
doaj   +1 more source

Analysis of Multi-Stream Fuel Injector Flow Using Zonal Proper Orthogonal Decomposition

open access: yesEnergies, 2021
The 3-component velocity distribution of two lean-burn gas turbine fuel injectors are measured at a planar location near and parallel to the injector outlet.
Daniel Butcher, Adrian Spencer
doaj   +1 more source

Proper Orthogonal Decomposition of Solar Photospheric Motions

open access: yesPhysical Review Letters, 2005
The spatio-temporal dynamics of the solar photosphere is studied by performing a Proper Orthogonal Decomposition (POD) of line of sight velocity fields computed from high resolution data coming from the MDI/SOHO instrument. Using this technique, we are able to identify and characterize the different dynamical regimes acting in the system. Low frequency
VECCHIO A.   +7 more
openaire   +7 more sources

Proper Orthogonal Decomposition as Surrogate Model for Aerodynamic Optimization

open access: yesInternational Journal of Aerospace Engineering, 2016
A surrogate model based on the proper orthogonal decomposition is developed in order to enable fast and reliable evaluations of aerodynamic fields. The proposed method is applied to subsonic turbulent flows and the proper orthogonal decomposition is ...
Valentina Dolci, Renzo Arina
doaj   +1 more source

Artificial viscosity proper orthogonal decomposition

open access: yesMathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jeff Borggaard   +2 more
openaire   +2 more sources

Proper orthogonal and dynamic mode decomposition of sunspot data [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
High-resolution solar observations show the complex structure of the magnetohydrodynamic (MHD) wave motion. We apply the techniques of proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD) to identify the dominant MHD wave modes in a sunspot using the intensity time series.
A. B. Albidah   +7 more
openaire   +7 more sources

A Group Condensation Method Based on Proper Orthogonal Decomposition

open access: yesYuanzineng kexue jishu, 2023
The group condensation is a key process of the two-step method and is the guarantee of efficiency of the two-step method. However, the group condensation of the two-step method also reduces the energy resolution and leads to the calculation errors.
WU Shifu;ZHANG Qian;ZHANG Jinchao;ZHAO Qiang
doaj  

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