vortex sheet
A surface of discontinuity of velocity in a fluid, which may be regarded as formed by vortex filaments oriented normal to the shear vector across the surface.
Such a velocity distribution exhibits Helmholtz instability.
A surface of discontinuity of velocity in a fluid, which may be regarded as formed by vortex filaments oriented normal to the shear vector across the surface.
Such a velocity distribution exhibits Helmholtz instability.