Re: [Phys-L] fluids

[John Denker <jsd@av8n.com>]

On 2/7/19 3:16 PM, Jeffrey Schnick wrote:
> Is it true that inside the tube out of which the water is flowing,
> the velocity is parallel to the centerline of the tube, so that,
> inside the tube, the water has no transverse velocity but outside the
> tube it has an inward-directed, decreasing, transverse velocity?  If
> so, that suggests that the water must get an inward kick upon exiting
> the tube.

Yes.  The details are interesting and nontrivial.

See e.g. figures 40-7 and 40-8, and accompanying discussion here:
  http://www.feynmanlectures.caltech.edu/II_40.html