The evolution of single elliptic vortex rings for initial aspect ratio (AR) = 2,4,6 has been studied. The incompressible Navier-Stokes equations are solved by a dealiased pseudo-spectral method with 64(3) grid points in a periodic cube. We find that there are three kinds of vortex motion as AR increases and bifurcation occurs at certain AR. The processes of advection, interaction and decay of vortex ring are discussed. Numerical results coincide with experiments and other authors' numerical simulation.Engineering, MechanicalMechanicsSCI(E)EI1ARTICLE117-251
AbstractThis paper gives an analysis of the movement of n+1 almost parallel filaments or vortices. S...
The results of a series of experiments performed to study the development of instabilities in vortex...
The wakes behind open rings of two different aspect ratios are computed using a spectral-element met...
The head-on collision process of elliptic vortex rings was experimentally investigated using flow-vi...
Elliptical vortex rings exhibit a phenomenon known as axis switching, in which a vortex ring’s major...
This report documents and discusses the findings of an experimental study conducted to shed light on...
We study the growth of disturbances to vortex rings with swirl, which are exact solutions of the Eul...
The contour dynamics method is extended to vortex rings with vorticity varying linearly from the sym...
The evolution of vortex rings in isodensity and isoviscosity fluid has been studied analytically usi...
The interaction between two identical elliptic vortex rings were simulated using Large Eddy Simulati...
International audienceThe linear instability of a vortex ring with swirl with Gaussian distributions...
The paper presents the investigations of interaction of several vortex rings and vortex pairs. For t...
Linear and nonlinear transient growths of perturbations on a vortex ring up to Reynolds number (≡ ci...
In this report, coaxial circular and elliptical vortex rings at AR=3 were simulated with OpenFOAM 2....
xv, 119 leaves : ill. (some col.) ; 30 cm.PolyU Library Call No.: [THS] LG51 .H577M ME 2005 HuangThe...
AbstractThis paper gives an analysis of the movement of n+1 almost parallel filaments or vortices. S...
The results of a series of experiments performed to study the development of instabilities in vortex...
The wakes behind open rings of two different aspect ratios are computed using a spectral-element met...
The head-on collision process of elliptic vortex rings was experimentally investigated using flow-vi...
Elliptical vortex rings exhibit a phenomenon known as axis switching, in which a vortex ring’s major...
This report documents and discusses the findings of an experimental study conducted to shed light on...
We study the growth of disturbances to vortex rings with swirl, which are exact solutions of the Eul...
The contour dynamics method is extended to vortex rings with vorticity varying linearly from the sym...
The evolution of vortex rings in isodensity and isoviscosity fluid has been studied analytically usi...
The interaction between two identical elliptic vortex rings were simulated using Large Eddy Simulati...
International audienceThe linear instability of a vortex ring with swirl with Gaussian distributions...
The paper presents the investigations of interaction of several vortex rings and vortex pairs. For t...
Linear and nonlinear transient growths of perturbations on a vortex ring up to Reynolds number (≡ ci...
In this report, coaxial circular and elliptical vortex rings at AR=3 were simulated with OpenFOAM 2....
xv, 119 leaves : ill. (some col.) ; 30 cm.PolyU Library Call No.: [THS] LG51 .H577M ME 2005 HuangThe...
AbstractThis paper gives an analysis of the movement of n+1 almost parallel filaments or vortices. S...
The results of a series of experiments performed to study the development of instabilities in vortex...
The wakes behind open rings of two different aspect ratios are computed using a spectral-element met...