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
doaj +1 more source
Spectral proper orthogonal decomposition [PDF]
The identification of coherent structures from experimental or numerical data is an essential task when conducting research in fluid dynamics. This typically involves the construction of an empirical mode base that appropriately captures the dominant ...
Oberleithner, Kilian +2 more
core +2 more sources
Estimation of damage severity in rigid connection of steel moment frames using the Proper Orthogonal Decomposition and the PSO optimization algorithm [PDF]
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
doaj +1 more source
Model Order Reduction of Non-Linear Magnetostatic Problems Based on POD and DEI Methods [PDF]
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
core +3 more sources
Phase-Averaging Methods for the Natural Flowfield of a Fluidic Oscillator [PDF]
The presented study examines various methods for phase averaging the naturally oscillating flowfield of a scaled-up fluidic oscillator. No external trigger is employed to control the oscillation of the flow.
Nayeri, Christian Navid +3 more
core +1 more source
Reduced-Order Model for an Impacting Beam using the Karhunen-Loµeve Expansion
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
doaj +1 more source
Comparative Study on Modal Decomposition Methods of Unsteady Separated Flow in Compressor Cascade
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.
doaj +1 more source
Simulation of hyperelastic materials in real-time using Deep Learning [PDF]
The finite element method (FEM) is among the most commonly used numerical methods for solving engineering problems. Due to its computational cost, various ideas have been introduced to reduce computation times, such as domain decomposition, parallel ...
Cotin, Stéphane +2 more
core +5 more sources
Cavitation regime detection through Proper Orthogonal Decomposition: dynamics analysis of the sheet cavity on a grooved convergent-divergent nozzle [PDF]
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
BAKIR, Farid +3 more
core +6 more sources
Asymptotic Stability of POD based Model Predictive Control for a semilinear parabolic PDE [PDF]
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
core +3 more sources

