Results 41 to 50 of about 5,531,893 (193)
Unsteady Flow Field Analysis of Axial Compressor Cascade Based on Proper Orthogonal Decomposition and Dynamic Mode Decomposition Methods [PDF]
Journal of Applied Fluid MechanicsThe analysis of the unsteady flow field in axial compressor cascade is conducted using methods such as proper orthogonal decomposition (POD) and dynamic mode decomposition (DMD).
X. Wu, R. Wang, Y. Du
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Tactic Behaviors in Asymmetric Pacman Particles
Small, EarlyView.The swimming behavior of TiO2 Pacman particles exhibits different modes depending on the fuel and illumination conditions. However, the behavior of these intrinsically asymmetric particles is still not well understood, and here we present a first approach to modeling their dynamics. Furthermore, we investigate their fundamental responses to some of the
Daniel Gordon +8 more
wiley +1 more source
, 2017 <p>The state of the figure generation for the arXiv preprint of the paper "Variable projection methods for an optimized dynamic mode decomposition"</p ...
Travis Askham
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Unsteady Flow Field Analysis of a Compressor Cascade Based on Dynamic Mode Decomposition
AerospaceTraditional flow field modeling methods are limited by high computational complexity, making them difficult to apply in practical engineering. This study applies the Dynamic Mode Decomposition (DMD) method to perform reduced-order modeling of unsteady ...
Xiaoxiong Wu, Yuming Du
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High Voltage, EarlyView.ABSTRACT Structural mechanics field simulation plays a critical role in the vibration characteristic analysis of electrical equipment. Existing structural field analysis of equipment based on numerical simulation faces challenges such as convergence difficulties and prolonged computational time, failing to meet the demand for real‐time prediction of ...
Wanqing Wang +6 more
wiley +1 more source
Closing Trajectories: Equation‐Free Cyclic Animation via Koopman Surrogates
Computer Graphics Forum, EarlyView.Abstract Cyclic animation is widely used in computer graphics and interactive content. It supports seamless playback in games, VR, and interactive simulation, where short clips must repeat smoothly over long durations. Converting an observed non‐cyclic trajectory into a seamless loop is challenging because the endpoint states of the observed sequence ...
Shixun Huang +4 more
wiley +1 more source
Dynamic mode decomposition using a Kalman filter for parameter estimation
AIP Advances, 2018 A novel dynamic mode decomposition (DMD) method based on a Kalman filter is proposed. This paper explains the fast algorithm of the proposed Kalman filter DMD (KFDMD) in combination with truncated proper orthogonal decomposition for many-degree-of ...
Taku Nonomura +2 more
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Partial Observation of Linear Systems With the Mori–Zwanzig Formalism
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT The Mori–Zwanzig (MZ) formalism provides a systematic framework for deriving reduced‐order model of dynamical systems when only part of the state is observed, but its practical use is often limited by the complexity of the resulting computations.
Fan Wang, Peter Benner, Jan Heiland
wiley +1 more source
Bayesian Dynamic Mode Decomposition
, 2017 Dynamic mode decomposition (DMD) is a data-driven method for calculating a modal representation of a nonlinear dynamical system, and it has been utilized in various fields of science and engineering. In this paper, we propose Bayesian DMD, which provides
Yasuo Tabei +3 more
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Cavitation regime detection through Proper Orthogonal Decomposition: dynamics analysis of the sheet cavity on a grooved convergent-divergent nozzle [PDF]
, 2014 The unsteady character of the sheet cavity dynamics on the suction side of hydrofoils, on convergent–divergent nozzles or on blades in turbines and propellers is responsible for many issues like erosion, noise and vibrations. This two-phase flow dynamics
DANLOS, Amélie +7 more
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