Results 41 to 50 of about 51,908 (255)
The performance of proper orthogonal decomposition in discontinuous flows
Theoretical and Applied Mechanics Letters, 2016 In this paper, flow reconstruction accuracy and flow prediction capability of discontinuous transonic flow field by means of proper orthogonal decomposition (POD) method is studied. Although linear superposition of “high frequency waves” in different POD
Jing Li, Weiwei Zhang
doaj +1 more source
Unsteady effects at the interface between impeller-vaned diffuser in a low pressure centrifugal compressor [PDF]
INCAS 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
Applied 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
Yuanzineng 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
Analysis of Multi-Stream Fuel Injector Flow Using Zonal Proper Orthogonal Decomposition
Energies, 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 as Surrogate Model for Aerodynamic Optimization
International 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
Volumetric Proper Orthogonal Decomposition of an impinging jet using SPIV measurement [PDF]
MATEC 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
Proper Orthogonal Decomposition of Solar Photospheric Motions
Physical 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
A Group Condensation Method Based on Proper Orthogonal Decomposition
Yuanzineng 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
SIAM Journal on Scientific Computing, 2020 This work investigates the stability of (discrete) empirical interpolation for nonlinear model reduction and state field approximation from measurements.
B. Peherstorfer, Z. Drmač, S. Gugercin
semanticscholar +1 more source