THE EFFECTS OF NON-SPHERICITY AND RADIATIVE ENERGY LOSS ON THE MIGRATION OF THE GAS BUBBLE FROM UNDERWATER EXPLOSIONS (paper presented at the Transactions of the Third Army Conference on Applied Mathematics and Computing)

Authors
  1. Heaton, K.C.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
One of the more important phenomena associated with the upward motion of a gas bubble from an underwater explosion is the significant departure from sphericity near the times of the minimum bubble radius. In this work, the shape of the bubble is described by an ellipsoid whose axes are allowed to vary independently, thus modelling, to first order, the changes of bubble shape. The Lagrangian equations of motion, incorporating the effects of the change of shape and of energy loss by the radiation of sound, are derived and solved for the case of a spheroidal bubble. The results of these calculations for various initial conditions are compared with analgous cases for a spherical bubble.
Date of publication
01 Jan 1985
Number of Pages
50
DSTKIM No
86-01823
CANDIS No
96558
Format(s):
Hardcopy;Originator's fiche received by DSIS

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