Results 41 to 50 of about 137,250 (253)
Reduced-order modeling for unsteady transonic flows around an airfoil [PDF]
, 2008 High-transonic unsteady flows around an airfoil at zero angle of incidence and moderate Reynolds numbers are characterized by an unsteadiness induced by the von Kármán instability and buffet phenomenon interaction.
Bourguet, Rémi +2 more
core +3 more sources
Proper Orthogonal Decomposition Closure Models For Turbulent Flows: A Numerical Comparison
, 2011 This paper puts forth two new closure models for the proper orthogonal decomposition reduced-order modeling of structurally dominated turbulent flows: the dynamic subgrid-scale model and the variational multiscale model.
Ahuja +74 more
core +1 more source
From exceptional collections to motivic decompositions via noncommutative motives [PDF]
, 2012 Making use of noncommutative motives we relate exceptional collections (and more generally semi-orthogonal decompositions) to motivic decompositions. On one hand we prove that the Chow motive M(X) of every smooth proper Deligne-Mumford stack X, whose ...
Marcolli, Matilde, Tabuada, Goncalo
core +3 more sources
Localised Proper Orthogonal Decomposition
Theoretical and Computational Fluid DynamicsProper Orthogonal Decomposition (POD) extracts an optimal orthonormal basis for reconstructing a sequence of data. This technique is widely used in fluid mechanics to construct reduced-order models for physical analysis, modelling, estimation, and control.
Elhaddad, Dyhia +3 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan +5 more
wiley +1 more source
Understanding Cavity Flows Using Proper Orthogonal Decomposition and Signal Processing
Journal of Algorithms & Computational Technology, 2010 Computational Fluid Dynamics (CFD) is increasingly being used to analyse complex flows. However, to perform a comprehensive analysis over a given time period, a large amount of data is provided and therefore a method for reducing the storage requirements
S.J. Lawson, G.N. Barakos, A. Simpson
doaj +1 more source
Proper Orthogonal Decomposition Analysis and Dispersion Characteristics of Resonant Acoustic Flow
Shock and Vibration, 2020 The investigation on the flow field and mixing characteristics of resonant sound mixing is of great significance for the dispersion mixing of superfine materials.
Xiaopeng Wang +4 more
doaj +1 more source
Orthogonal decomposition of Lorentz transformations
, 2012 The canonical decomposition of a Lorentz algebra element into a sum of orthogonal simple (decomposable) Lorentz bivectors is discussed, as well as the decomposition of a proper orthochronous Lorentz transformation into a product of commuting Lorentz ...
Hanson, Jason
core +1 more source
The shifted proper orthogonal decomposition: A mode decomposition for multiple transport phenomena [PDF]
, 2015 Transport-dominated phenomena provide a challenge for common mode-based model reduction approaches. We present a model reduction method, which extends the proper orthogonal decomposition (POD) by introducing time-dependent shifts of the snapshot matrix ...
Reiss, Julius +2 more
core +1 more source
Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems
Advanced Functional Materials, EarlyView.MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley +1 more source