Results 11 to 20 of about 113,908 (298)
Nihon Kikai Gakkai ronbunshu, 2023 Many mechanical systems such as vehicles, robots and space structures are comprised of a lot of interconnected components. The motion of the components is constrained because of mechanical joints or specified motion trajectories.
Ryoya NISHI +2 more
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Engineering Applications of Computational Fluid Mechanics, 2022 To analyze the complex spatiotemporal evolution law of the high-speed jet flow field in a liquid-ring pump ejector, both the classic and spectral proper orthogonal decomposition (SPOD) methods were introduced to decompose the transient flow field based ...
Li-Jie Jiang +3 more
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International Journal of Engine Research, 2019 Experimental techniques like particle image velocimetry provide a powerful technical support for the analysis of the spatial and temporal evolution of the flow field in internal combustion engines. Such techniques can be used to investigate both ensemble-averaged flow structures and their cyclic variations.
Federico Rulli +3 more
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A Proper-Orthogonal Decomposition Variational Multiscale Approximation Method for a Generalized Oseen Problem [PDF]
Advances in Numerical Analysis, 2013 We introduce the variational multiscale (VMS) stabilization for the reduced-order modeling of incompressible flows. It is well known that the proper orthogonal decomposition (POD) technique in reduced-order modeling experiences numerical instability when applied to complex flow problems.
John Paul Roop
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Communications in Nonlinear Science and Numerical SimulationIn this work, we introduce a novel reduced order model technique, based on the Proper Orthogonal Decomposition method, for dynamical systems with multiple timescales. The main ideas are to retain the structure of the original model, which is lost in the original POD procedure, while producing a competitive reduction in the number of equations and ...
Alejandro Bandera Moreno +3 more
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SIAM Journal on Scientific Computing23 pages, 9 figures, published in SIAM, Code available: https://github.com/MOR-transport ...
Philipp Krah +4 more
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Engineering Applications of Computational Fluid MechanicsThe flow-induced vibration of the outer windshield of high-speed train intensifies as the train's speed increases, impacting stability and safety during operation. The vibration characteristics of outer windshields are crucial for optimizing higher-speed
Xiang Liu, Pengxiang Lv, Xiao Liu
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Integrating Proper Orthogonal Decomposition with the Crank–Nicolson Finite Element Method for Efficient Solutions of the Schrödinger Equation [PDF]
AxiomsThis study proposes a dimensionality reduction method based on proper orthogonal decomposition (POD) for numerically solving the Schrödinger equation by optimizing the coefficient vectors of the Crank–Nicolson finite element (CNFE) solution.
Xiaohui Chang +3 more
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Tsunami forecasting using proper orthogonal decomposition method [PDF]
Journal of Geophysical Research: Oceans, 2008 Tsunami early warning requires a quick and accurate prediction of the occurrence, arrival time and characteristics of the tsunami waves. The solution of a full set of governing partial differential equations can provide a sufficiently accurate prediction, but it is often computationally intensive and time consuming at high spatial resolution.
Ha, D.M., Tkalich, P., Chan, E.S.
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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
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