<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Vladimirov, Vladimir A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On the vortical (Lamb's or Kelvin's) impulse of incompressible fluid flows</style></title><secondary-title><style face="normal" font="default" size="100%">J. Appl. Mech. Tech. Phys</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Fluid Dynamics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1977</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1977</style></date></pub-dates></dates><urls><related-urls><url><style face="normal" font="default" size="100%">http://maths.york.ac.uk/www/sites/default/files/1977-vort-momentum.pdf</style></url></related-urls></urls><volume><style face="normal" font="default" size="100%">18</style></volume><pages><style face="normal" font="default" size="100%">791-794</style></pages><abstract><style face="normal" font="default" size="100%">This paper proposes the generalization of Lamb's impulse for an incompressible fluid onto flows with free boundaries and interfaces,
such as cavity and bubbles in fluid. Viscosity and density stratification of a fluid are taken into account. More general definition of the impulse naturally appears by taking into account vortex sheets, which correspond to free surfaces.</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue></record></records></xml>