Modal Decomposition Study of the Non-Reactive Flow Field in a Dual-Swirl Combustor
Energies, 2023 The modal decomposition study of the non-reactive flow field in a dual-swirl combustor is investigated through the large eddy simulation. The formation mechanism and function of various recirculation zones are elaborated by analyzing the time-averaged ...
Xiangzhou Feng +3 more
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Unsteady characteristics analysis of compressors based on the proper orthogonal decomposition method [PDF]
AIP AdvancesAn aero-engine is often accompanied by a strong unsteady flow at near-stall condition, and increasing unsteady airflow eventually makes the engine unstable. To explore the unsteady flow characteristics, the Rotor 37 was taken as the research object.
Shan Ma +4 more
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Frontiers in Energy Research, 2023 The non-cavitating and cavitating wake flow of a circular cylinder, which contains multiscale vortices, is numerically investigated by Large Eddy Simulation combined with the Schnerr–Sauer cavitation model in this paper.
Guangjian Zhang +4 more
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Asymptotic Stability of POD based Model Predictive Control for a semilinear parabolic PDE [PDF]
, 2013 In this article a stabilizing feedback control is computed for a semilinear parabolic partial differential equation utilizing a nonlinear model predictive (NMPC) method.
Alla, Alessandro, Volkwein, Stefan
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Estimation of damage severity in rigid connection of steel moment frames using the Proper Orthogonal Decomposition and the PSO optimization algorithm [PDF]
مهندسی عمران شریف, 2021 One of the most important issues in damage detection is determining the severity of damages. Speed and accuracy in determining the severity of damages depend on the measurement noise.
T. Teimoori, M. Mahmoudi
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Model Order Reduction of Non-Linear Magnetostatic Problems Based on POD and DEI Methods [PDF]
, 2014 In the domain of numerical computation, Model Order Reduction approaches are more and more frequently applied in mechanics and have shown their efficiency in terms of reduction of computation time and memory storage requirements. One of these approaches,
CLENET, Stéphane, HENNERON, Thomas
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Advances in Meteorology, 2020 In this paper, a frequently employed technique named the sparsity-promoting dynamic mode decomposition (SPDMD) is proposed to analyze the velocity fields of atmospheric motion.
Mei Gao +5 more
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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
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Reduced-Order Model for an Impacting Beam using the Karhunen-Loµeve Expansion
Trends in Computational and Applied Mathematics, 2002 The Karhunen-Loµeve expansion (KLE), also known in the literature as the proper orthogonal decomposition, is a powerful tool for the model reduction of structural systems.
C. WOLTER, M.A. TRINDADE, R. SAMPAIO
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Comparative Study on Modal Decomposition Methods of Unsteady Separated Flow in Compressor Cascade
Xibei Gongye Daxue Xuebao, 2020 The present work investigated the vortex structure and fluctuation frequency characteristics generated by boundary layer separation of a high-load compressor cascade using modal decomposition methods.
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