Results 11 to 20 of about 22,976 (267)
Spectral proper orthogonal decomposition and its relationship to dynamic mode decomposition and resolvent analysis [PDF]
Journal of Fluid Mechanics, 2017 We consider the frequency domain form of proper orthogonal decomposition (POD), called spectral proper orthogonal decomposition (SPOD). Spectral POD is derived from a space–time POD problem for statistically stationary flows and leads to modes that each ...
A. Towne, O. Schmidt, T. Colonius
semanticscholar +5 more sources
Schlieren Flow Visualization and Analysis of Synthetic Jets
Fluids, 2021 This work explores several low-cost methods for the visualization and analysis of pulsed synthetic jets for cooling applications. The visualization methods tested include smoke, Schlieren imaging, and thermography.
John E. Pellessier +2 more
doaj +1 more source
Extraction of the mode shapes of a segmented ship model with a hydroelastic response
International Journal of Naval Architecture and Ocean Engineering, 2015 The mode shapes of a segmented hull model towed in a model basin were predicted using both the Proper Orthogonal Decomposition (POD) and cross random decrement technique.
Yooil Kim, In-Gyu Ahn, Sung-Gun Park
doaj +1 more source
Applied Sciences, 2020 Temperature information has a certain significance in thermal energy systems, especially in gas combustion systems. Generally, measurements and numerical calculations are used to acquire temperature information, but both of these approaches have their ...
Minxin Chen +4 more
doaj +1 more source
Reduced Order Modelling of Shigesada-Kawasaki-Teramoto Cross-Diffusion Systems
Journal of Mathematical Sciences and Modelling, 2023 Shigesada-Kawasaki-Teramoto (SKT) is the most known equation in population ecology for nonlinear cross-diffusion systems. The full order model (FOM) of the SKT system is constructed using symmetric interior penalty discontinuous Galerkin method (SIPG ...
Gülden Mülayim
doaj +1 more source
Multi-scale reconstruction of turbulent rotating flows with proper orthogonal decomposition and generative adversarial networks [PDF]
Journal of Fluid Mechanics, 2022 Data reconstruction of rotating turbulent snapshots is investigated utilizing data-driven tools. This problem is crucial for numerous geophysical applications and fundamental aspects, given the concurrent effects of direct and inverse energy cascades ...
Tianyi Li +5 more
semanticscholar +1 more source
Proper orthogonal decomposition method for Schrödinger equation
Lietuvos Matematikos Rinkinys, 2013 In this paper we consider the proper orthogonal decomposition (POD) method for one-dimensional Schrödinger equation. We begin of the review of basic ideas of POD. Later this method is applied to study the linear Schrödinger equation.
Raimondas Čiegis +2 more
doaj +1 more source
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
doaj +1 more source
The Physics of Fluids, 2023 In this research, the cavitating flow around a NACA0015(National Advisory Committee for Aeronautics) hydrofoil obtained by the large eddy simulation method is analyzed using the proper orthogonal decomposition (POD) theory. Various fundamental mechanisms
A. Yu +4 more
semanticscholar +1 more source
Shock and Vibration, 2014 This paper proposes a methodology to automatically choose the measurement locations of a nonlinear structure/equipment that needs to be monitored while operating.
T. G. Ritto
doaj +1 more source