Limited‐memory adaptive snapshot selection for proper orthogonal decomposition
Sign Up to like & getrecommendations! Published in 2017 at "International Journal for Numerical Methods in Engineering"
DOI: 10.1002/nme.5283
Abstract: Summary Reduced order models are useful for accelerating simulations in many-query contexts, such as optimization, uncertainty quantification, and sensitivity analysis. However, offline training of reduced order models (ROMs) can have prohibitively expensive memory and floating-point… read more here.
Keywords: orthogonal decomposition; proper orthogonal; selection; decomposition ... See more keywords
On combining linear stochastic estimation and proper orthogonal decomposition for flow reconstruction
Sign Up to like & getrecommendations! Published in 2018 at "Experiments in Fluids"
DOI: 10.1007/s00348-018-2513-4
Abstract: We present an estimation method combining Proper Orthogonal Decomposition (POD) and Linear Stochastic Estimation (LSE). The method is based on a direct mapping of the POD amplitudes from the measurement space to the state space.… read more here.
Keywords: estimation; orthogonal decomposition; proper orthogonal; stochastic estimation ... See more keywords
3D particle shape modelling and optimization through proper orthogonal decomposition
Sign Up to like & getrecommendations! Published in 2017 at "Granular Matter"
DOI: 10.1007/s10035-017-0771-0
Abstract: Based on proper orthogonal decomposition (POD), a new method is presented in order to statistically characterize arbitrary particle shapes using an optimal choice of shape functions identified on a set of 1000 digitized railway ballast… read more here.
Keywords: orthogonal decomposition; shape; proper orthogonal; particle ... See more keywords
Effective sensor placement in a steam reformer using gappy proper orthogonal decomposition
Sign Up to like & getrecommendations! Published in 2019 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2019.03.089
Abstract: Abstract In this study, a gappy proper orthogonal decomposition (POD) method was applied to a steam reformer model with combustion, flow, and catalysis to determine the optimal number and placement of sensors. The dominant POD… read more here.
Keywords: reformer; steam reformer; gappy proper; proper orthogonal ... See more keywords
Fusing wind-tunnel measurements and CFD data using constrained gappy proper orthogonal decomposition
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2018.12.036
Abstract: Abstract In this article gappy proper orthogonal decomposition (POD) is used to fuse wind-tunnel measurements and computational fluid dynamics (CFD) data to provide a consistent and more comprehensive output of greater utility. The technique is… read more here.
Keywords: tunnel; surface; wind tunnel; gappy proper ... See more keywords
A two-stage surrogate model for Neo-Hookean problems based on adaptive proper orthogonal decomposition and hierarchical tensor approximation
Sign Up to like & getrecommendations! Published in 2020 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2020.113368
Abstract: Abstract The evaluation of robustness and reliability of realistic structures in the presence of uncertainty is numerically costly. This motivates model order reduction techniques like the proper orthogonal decomposition (POD), which gives an approximate model… read more here.
Keywords: orthogonal decomposition; model; stage; proper orthogonal ... See more keywords
Reconstructing cellular surface of gaseous detonation based on artificial neural network and proper orthogonal decomposition
Sign Up to like & getrecommendations! Published in 2020 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2019.10.031
Abstract: Abstract Gaseous detonation has complicated cellular surface, whose comprehensive investigation is critical not only to the detonation physics but also the detonation engine development. Because measuring the high-resolution dynamic surface is beyond the present experimental… read more here.
Keywords: orthogonal decomposition; cellular surface; surface; proper orthogonal ... See more keywords
Damage detection in CFRP composite beams based on vibration analysis using proper orthogonal decomposition method with radial basis functions and cuckoo search algorithm
Sign Up to like & getrecommendations! Published in 2018 at "Composite Structures"
DOI: 10.1016/j.compstruct.2017.12.058
Abstract: Abstract This paper presents a new fast approach for crack identification using vibration analysis based on model reduction using proper orthogonal decomposition method with radial basis function (POD-RBF). The method is formulated as an inverse… read more here.
Keywords: vibration analysis; proper orthogonal; method; using proper ... See more keywords
A modification to extended proper orthogonal decomposition-based correlation analysis: The spatial consideration
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2021.121065
Abstract: Abstract The so-called proper orthogonal decomposition (POD) method has been used in numerous research items, mainly in the field of turbulence, as a reduced-order model to describe transient complex turbulence by a set of deterministic… read more here.
Keywords: orthogonal decomposition; epod; modification; proper orthogonal ... See more keywords
Analysis of turbulent structures around a rectangular prism building model using spectral proper orthogonal decomposition
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Wind Engineering and Industrial Aerodynamics"
DOI: 10.1016/j.jweia.2020.104213
Abstract: Abstract This paper presents a study on the turbulent structure of the wind velocity field around a rectangular prism building model, calculated using large-eddy simulation. Spectral proper orthogonal decomposition (SPOD), a technique to perform proper… read more here.
Keywords: orthogonal decomposition; proper orthogonal; rectangular prism; prism building ... See more keywords
MODULO: A software for Multiscale Proper Orthogonal Decomposition of data
Sign Up to like & getrecommendations! Published in 2020 at "SoftwareX"
DOI: 10.1016/j.softx.2020.100622
Abstract: In the era of the Big Data revolution, methods for the automatic discovery of regularities in large datasets are becoming essential tools in applied sciences. This article presents an open software package, named MODULO (MODal… read more here.
Keywords: orthogonal decomposition; proper orthogonal; multiscale proper; decomposition ... See more keywords