vortex sheet

vortex sheet

[′vȯr‚teks ‚shēt]
(fluid mechanics)
A surface across which there is a discontinuity in fluid velocity, such as in slippage of one layer of fluid over another; the surface may be regarded as being composed of vortex filaments.
References in periodicals archive ?
Thus, unlike a more symmetric idealized vortex sheet that breaks down into same-signed vortices by horizontal shearing instability [HSI; see Batchelor (1967)] with a preferred wavelength (Miles and Howard 1964), there are both cyclonic and anticyclonic vortices or vorticity patches present along the boundary, as shown in Fig.
Bryan, 2014: The origins of vortex sheets in a simulated supercell thunderstorm.
19] and Xu and Tan [20] examined the velocity field, stress field and vortex sheet of a generalized second-order fluid with fractional anomalous diffusion.
Tan, Theoretical analysis of the velocity field, stress field and vortex sheet of generalized second order fluid with fractional anomalous diffusion, Sci.
Wu (WU, 1971) seeks to evaluate the swimming flow around a typical slender fish whose transverse cross-section to the rear of its maximum span section is of a lenticular shape with pointed edges, such as those of spiny fins, so that these side edges are sharp trailing edges, from which an oscillating vortex sheet is shed to trail the body in swimming.
Attention is focused on the interaction of the fin lifting surfaces with the body thickness, and especially on the dynamics of the vortex sheets shed from the fin trailing edges.
In the study, vortices were generated experimentally by roll-up of a vortex sheet and phenomenon was followed up to study the transition for which critical parameters were measured.
During the previous mentioned research, has been observed the air vortex Karman and the vortex sheet formed after the pipe, inclusive determination of the dynamical forces caused by air vortexs that load the pipe.
When a series of elemental line vortices, all with the same sense of rotation, occur adjacent to one another, a vortex sheet is produced.
3] considered a correction to the zone of influence of a vortex sheet to improve the near wall solution.
Remarkably, the existence and uniqueness of vortex sheets remain outstanding open problems even though they are of vital importance in applications in aerodynamics and climatology.