vortex filament


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Related to vortex filament: Vortex line, Vortex tube, vortex sheet

vortex filament

[′vȯr‚teks ‚fil·ə·mənt]
(fluid mechanics)
The line of concentrated vorticity in a line vortex. Also known as vortex line.
References in periodicals archive ?
The exploration of superfluid models of spacetime is not a new concept with some of the first major papers published circa 1976, but the Cosserat model of precisely how a superfluid vacuum might work is significantly different from any previous proposals with numerous implications for the application and interpretation of Lorentz invariance as well as expectations about the phenomena of vortex filaments proposed in those earlier theories and now shown to exist within experiments with superfluid helium.
The Neoclassical Interpretation will expose a new view of material phenomena under Kelvin's concept of vortex filaments and their various configurations.
Wang, "The vortex filament in the Minkowski 3-space and generalized bi-Schrodinger maps," Journal ofPhysics.
Kida, "A vortex filament moving without change of form," Journal of Fluid Mechanics, vol.
Koiso, "Vortex filament equation in a Riemannian manifold," Tohoku Mathematical Journal, vol.
where 2[epsilon] = 2d / [r.sub.0] is the non-dimensional separation between the axes of first two vortex filaments, and u = [u.sub.1] /([r.sub.0]/[tau]) is the non-dimensional velocity superimposed in the [X.sub.1]-direction.
It is found that even in the presence of the third vortex, if the fixed axes of vortex filaments are concurrent and uniform external velocity field is absent, the path of a fluid particle remains confined on the surface of a sphere having radius equal to the initial distance of the particle from origin.
Keeping such an observation in mind, attempt has been made in the present work to investigate the effect of uniform external velocity field on the considered field due to inviscid and fixed vortex filaments. If a uniform external velocity is superimposed upon the vortex system in [X.sub.1]-direction, then we consider u [not equal to] 0 in the system of Eqns.
16(a)-(d) present the particle paths due to effect of translational superposition on the two and three vortex filaments. For all the cases considered, a small translational velocity of u = 0.01 has been superimposed in the [X.sub.1]-direction on the vortex field.
This concept provides a secondary picture of the physical nature of wave particle duality and this alteration of vortex filaments in a superfluid medium provides a read/write mechanism similar to those discussed in the brain in which the stable vortex filaments play the part of neuronal and dendritic structures.
These alterations to the electromagnetic medium in the form of pulsating vortex filaments are proposed as a model of energetic particle correlates to the physical particle model of the "sonon" proposed by Brady.