Zobrazeno 1 - 10
of 44
pro vyhledávání: '"LUCA ZANNETTI"'
Autor:
Alexandre Gourjii, Luca Zannetti
Publikováno v:
Journal of Fluid Mechanics. 755:50-61
The two-dimensional inviscid incompressible steady flow past an inclined flat plate is considered. A locus of asymmetric equilibrium configurations for vortex pairs is detected. It is shown that the flat geometry has peculiar properties compared to o
Publikováno v:
Zannetti, L; Ferlauto, M; & Llewellyn Smith, SG. (2016). Hollow vortices in shear. Journal of Fluid Mechanics, 809, 705-715. doi: 10.1017/jfm.2016.697. UC San Diego: Retrieved from: http://www.escholarship.org/uc/item/3wf5b84m
JOURNAL OF FLUID MECHANICS, vol 809
JOURNAL OF FLUID MECHANICS, vol 809
An analytical method for determining the shape of hollow vortices in shear flows is presented in detail. In a non-dimensional formulation, it is shown that the problem has one degree of freedom represented by the free choice of the non-dimensionalize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdf0718a4cbdfc7df06386046187de5b
http://www.escholarship.org/uc/item/3wf5b84m
http://www.escholarship.org/uc/item/3wf5b84m
Autor:
Luca Zannetti, Alan R. Elcrat
Publikováno v:
Journal of Fluid Mechanics. 708:377-396
Closed and open hollow wakes are considered as analytic models for the two-dimensional inviscid steady flow past a plate normal to the stream. It is shown that only open configurations which satisfy the Kutta condition exist. The main argument is bas
Publikováno v:
European Journal of Mechanics - B/Fluids. 29:369-376
A contour dynamics algorithm is presented for vortex patches in unbounded domains and in simply connected bounded domains. It is based on conformal mapping and spectral analysis. The inside and outside of a vortex patch are analytically mapped onto t
Publikováno v:
Journal of Fluid Mechanics. 612:143-152
The unsteady two-dimensional rotational flow past doubly connected domains is analytically addressed. By concentrating the vorticity in point vortices, the flow is modelled as a potential flow with point singularities. The dependence of the complex p
Autor:
Luca Zannetti, Sergei Chernyshenko
Publikováno v:
European Journal of Mechanics - B/Fluids. 24:328-337
An example is given of a flow past two bodies with two trapped point vortices so that the pressure is constant over the entire body surface and the flow has no stagnation points. The flow is constructed from the flow past a pair of counter-rotating v
Publikováno v:
Journal of Fluid Mechanics. 503:161-170
A proper orthogonal decomposition based model is considered for two-dimensional vortex shedding past a confined square cylinder. The aim is to study the validity of such a model for Reynolds numbers and blockage ratios that are different from those f
Autor:
Luca Zannetti, Angelo Iollo
Publikováno v:
European Journal of Mechanics - B/Fluids. 20:7-24
The flow due to a vortex trapped in a cavity is considered. The total circulation is constant and such that the Kutta condition is satisfied at the separation point when the vortex is on the equilibrium position S. If the vortex is slightly displaced
Autor:
Luca Zannetti, Angelo Iollo
Publikováno v:
Flow, Turbulence and Combustion. 65:417-430
An airfoil with a cavity traps a vortex; the lift increases but the vortex shows great receptivity to upstream disturbances. A simple potential flow model confirms that the vortex stability basin is of a reduced extent. In this paper we present a con