The identification of coherent structures using proper orthogonal decomposition and dynamic mode decomposition
Q Zhang, Y Liu, S Wang - Journal of Fluids and Structures, 2014 - Elsevier
A comprehensive comparison was conducted on the identification of coherent structures in
fluid flow using Proper Orthogonal Decomposition (POD) and Dynamic Mode …
fluid flow using Proper Orthogonal Decomposition (POD) and Dynamic Mode …
Mind the gap-tip leakage vortex in axial turbines
The tendency of designing large Kaplan turbines with a continuous increase of output power
is bringing to the front the cavitation erosion issue. Due to the flow in the gap between the …
is bringing to the front the cavitation erosion issue. Due to the flow in the gap between the …
Mode vortex and turbulence in ventilated cavitation over hydrofoils
In this paper, the complex interaction of gas-vortex-turbulence in ventilated cavitation over a
NACA0015 hydrofoil is investigated by using large eddy simulation. The proper orthogonal …
NACA0015 hydrofoil is investigated by using large eddy simulation. The proper orthogonal …
Characterization of unsteady cavitating flow regimes around a hydrofoil, based on an extended Schnerr–Sauer model coupled with a nucleation model
The present work is aimed at the numerical spatio-temporal characterization of the unsteady
cavitating flow structures on a hydrofoil by means of Proper Orthogonal Decomposition …
cavitating flow structures on a hydrofoil by means of Proper Orthogonal Decomposition …
Image processing using proper orthogonal and dynamic mode decompositions for the study of cavitation developing on a NACA0015 foil
The purpose of the present study is to get a better understanding of the hydrodynamic
instabilities of sheet cavities which develop along solid walls. The main objective is to …
instabilities of sheet cavities which develop along solid walls. The main objective is to …
Investigation of cavitation shedding mechanisms including reentrant jet and shock wave by Eulerian–Lagrangian multiscale simulation
L Li, X Cheng, Z Zhu, X Sun, X Zhang - Physics of Fluids, 2024 - pubs.aip.org
Sheet-to-cloud cavitation in a Venturi pipe is investigated experimentally and numerically in
this work. The multiscale vapor structures are simulated by Eulerian–Lagrangian multiscale …
this work. The multiscale vapor structures are simulated by Eulerian–Lagrangian multiscale …
Flow control of a circular cylinder by self-adaptive furry microfibers
In the present study, two columns of self-adaptive furry microfibers (nylon wires) are placed
near the separation points of a cylinder to manipulate the wake vortex shedding and …
near the separation points of a cylinder to manipulate the wake vortex shedding and …
POD analysis on vortical structures in MVG wake by Liutex core line identification
The Liutex core line method, first combined with the snapshot proper orthogonal
decomposition (POD), is utilized in a supersonic micro-vortex generator (MVG) wake flow at …
decomposition (POD), is utilized in a supersonic micro-vortex generator (MVG) wake flow at …
Active wake control of flow past a circular cylinder with slot jet
In the current research, an active-flow control scheme characterized by leeward slot jet over
a circular cylinder was experimentally investigated to manipulate the vortex shedding from …
a circular cylinder was experimentally investigated to manipulate the vortex shedding from …
Influence of incident vortex street on separated flow around a finite blunt plate: PIV measurement and POD analysis
Q Zhang, Y Liu - Journal of fluids and structures, 2015 - Elsevier
This study investigated the influence of incident vortex street on the spatial characteristics of
separated shear layers around finite blunt plates through use of planar particle image …
separated shear layers around finite blunt plates through use of planar particle image …