The steady, axisymmetric flow induced by a point sink (or source) submerged in an unbounded inviscid fluid is computed. The resulting deformation of the free surface is obtained, and a limit of steady solutions is found that is quite di erent to those obtained in past work. More accurate solutions indicate that the old limiting flow rate was too high and, in fact, the breakdown of steady solutions at a lower flow rate is characterized by the appearance of spurious wavelets at the free surface.
History
Publication title
The ANZIAM Journal
Volume
56
Pagination
150-159
ISSN
1446-1811
Department/School
School of Natural Sciences
Publisher
Australian Mathematics Publ Assoc Inc
Place of publication
Mathematics Dept Australian National Univ, Canberra, Australia, Act, 0200