Zobrazeno 1 - 10
of 257
pro vyhledávání: '"Kerry Hourigan"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 10, p 1923 (2023)
In the present two-dimensional numerical study, we investigate the roles of geometrical parameters of a hydrofoil (shape/curvature of the leading and trailing edges and thickness) and kinematic parameters (phase difference between heave and pitch (ϕ
Externí odkaz:
https://doaj.org/article/4a3469ba4c074c76b1a900a7a85aaf7d
Publikováno v:
Royal Society Open Science, Vol 5, Iss 7 (2018)
Stable attachment of a leading-edge vortex (LEV) plays a key role in generating the high lift on rotating wings with a central body. The central body size can affect the LEV structure broadly in two ways. First, an overall change in the size changes
Externí odkaz:
https://doaj.org/article/8e0c20f3ab11435eb485cbc6cf8e84ab
Autor:
Mohd-Zulhilmi Ismadi, Priyanka Gupta, Andreas Fouras, Paul Verma, Sameer Jadhav, Jayesh Bellare, Kerry Hourigan
Publikováno v:
PLoS ONE, Vol 9, Iss 10, p e106493 (2014)
We present detailed quantitative measurement analyses for flow in a spinner flask with spinning rates between 20 to 45 RPM, utilizing the optical velocimetry measurement technique of Particle Image Velocimetry (PIV). A partial section of the impeller
Externí odkaz:
https://doaj.org/article/d20c72a7ed4c4fa7b5bebe37fc6c1964
Autor:
Mohd-Zulhilmi Ismadi, Simon Higgins, Chaminda R Samarage, David Paganin, Kerry Hourigan, Andreas Fouras
Publikováno v:
PLoS ONE, Vol 8, Iss 6, p e65714 (2013)
We describe a method for measuring three dimensional (3D) velocity fields of a fluid at high speed, by combining a correlation-based approach with in-line holography. While this method utilizes tracer particles contained within the flow, our method d
Externí odkaz:
https://doaj.org/article/9f6316270b4b446aa20c623497c01f92
Publikováno v:
Journal of Fluid Mechanics. 962
This study investigates the effect of structural damping on vortex-induced vibration (VIV) of a circular cylinder when the mass ratio is below its critical value. It is confirmed by water-channel experiments and a reduced-order model (ROM) that the p
Publikováno v:
Journal of Fluid Mechanics. 958
The Lighthill–Panton and Lyman–Huggins interpretations of vorticity dynamics are extended to the dynamics of enstrophy. There exist two competing definitions of the vorticity current tensor, which describes the flow rate of vorticity in the fluid
Publikováno v:
Journal of Fluid Mechanics. 954
Flow transitions are an important fluid-dynamic phenomena for many reasons, including the direct effect on the aerodynamic forces acting on the body. In the present study, two-dimensional (2-D) and three-dimensional (3-D) wake transitions of a NACA00
Publikováno v:
Physical Review Fluids. 7
Publikováno v:
Journal of Fluid Mechanics. 944
We perform numerical simulations of the interaction between a vortex ring and a free surface, and provide a new interpretation of the mechanism by which the vortex ring connects to the free surface. Large vorticity gradients at the free surface resul
Publikováno v:
Journal of Fluid Mechanics. 941
We present a decomposition of the streamwise fluid force for in-line vortex-induced vibration (VIV) to provide insight into how the wake drag acts as a driving force in fluid–structure interaction. This force decomposition is an extension of that p