Results 31 to 40 of about 275,780 (304)

Large Eddy Simulation and Dynamic Mode Decomposition of Turbulent Mixing Layers

open access: yesApplied Sciences, 2021
Turbulent mixing layers are canonical flow in nature and engineering, and deserve comprehensive studies under various conditions using different methods. In this paper, turbulent mixing layers are investigated using large eddy simulation and dynamic mode
Yuwei Cheng, Qian Chen
doaj   +1 more source

Visualization and selection of Dynamic Mode Decomposition components for unsteady flow

open access: yesVisual Informatics, 2021
Dynamic Mode Decomposition (DMD) is a data-driven and model-free decomposition technique. It is suitable for revealing spatio-temporal features of both numerically and experimentally acquired data.
T. Krake   +4 more
doaj   +1 more source

Constrained Dynamic Mode Decomposition

open access: yesIEEE Transactions on Visualization and Computer Graphics, 2022
Frequency-based decomposition of time series data is used in many visualization applications. Most of these decomposition methods (such as Fourier transform or singular spectrum analysis) only provide interaction via pre- and post-processing, but no means to influence the core algorithm.
Tim, Krake   +3 more
openaire   +2 more sources

A characteristic dynamic mode decomposition [PDF]

open access: yesTheoretical and Computational Fluid Dynamics, 2019
Temporal or spatial structures are readily extracted from complex data by modal decompositions like Proper Orthogonal Decomposition (POD) or Dynamic Mode Decomposition (DMD). Subspaces of such decompositions serve as reduced order models and define either spatial structures in time or temporal structures in space.
Jörn Sesterhenn, Amir Shahirpour
openaire   +3 more sources

Application of dynamic mode decomposition and compatible window-wise dynamic mode decomposition in deciphering COVID-19 dynamics of India

open access: yesComputational and Mathematical Biophysics, 2023
The COVID-19 pandemic recently caused a huge impact on India, not only in terms of health but also in terms of economy. Understanding the spatio-temporal patterns of the disease spread is crucial for controlling the outbreak.
Rana Kanav Singh, Kumari Nitu
doaj   +1 more source

Generalized eigenvalue approach for dynamic mode decomposition

open access: yesAIP Advances, 2021
Traditional dynamic mode decomposition (DMD) methods inevitably involve matrix inversion, which often brings in numerical instability and spurious modes.
Wei Zhang, Mingjun Wei
doaj   +1 more source

On Alternative Algorithms for Computing Dynamic Mode Decomposition

open access: yesComputation, 2022
Dynamic mode decomposition (DMD) is a data-driven, modal decomposition technique that describes spatiotemporal features of high-dimensional dynamic data.
Gyurhan Nedzhibov
doaj   +1 more source

Bilinear dynamic mode decomposition for quantum control

open access: yesNew Journal of Physics, 2021
Data-driven methods for establishing quantum optimal control (QOC) using time-dependent control pulses tailored to specific quantum dynamical systems and desired control objectives are critical for many emerging quantum technologies.
Andy Goldschmidt   +4 more
doaj   +1 more source

Higher Order Dynamic Mode Decomposition [PDF]

open access: yesSIAM Journal on Applied Dynamical Systems, 2017
This paper deals with an extension of dynamic mode decomposition (DMD), which is appropriate to treat general periodic and quasi-periodic dynamics, and transients decaying to periodic and quasiperiodic attractors, including cases (not accessible to standard DMD) that show limited spatial complexity but a very large number of involved frequencies.
Le Clainche Martínez, Soledad   +1 more
openaire   +3 more sources

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