Author(s)

K. Wang & R.M.M. Mattheij

Abstract

In manufacturing bottles or jars, the motion of the glass between the mould and the plunger can be modelled as an axi-symmetric, time-dependent Stokes flow with free and "moving" boundaries. The Stokes flow can be re- duced to a l-D boundary integral equation (BIE) due to its axi-symmetry. In this paper, we present a /^-adaptive boundary element method (BEM) to solve this BIE. The time integration is carried out by a sort of predictor- corrector scheme. Numerical Results illustrate the efficiency and accuracy of the method. 1 Mathematical Model In manufacturing bottles or jars, several processes are known, one of them being pressing/blowing, the pressing phase is schematically shown in Figure 1. A certain amount of glass falls

Keywords