自由表面をもつ粘性流体の非定常クリープ流れの解析 : マーカ粒子を用いた有限要素解析

概要

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Analyses of transient incompressible fluid flow with free surfaces are conducted using the penalty function formulation of the finite element method. Markers in a finite element can well simulate the deforming free surfaces simply by moving toward the direction of the velocity vectors. In order to move the markers from element to element the area coordinate system of the linear triangular element, which is utilized for determining the new marker position in an element, is introduced into the four-node rectangular isoparametric element. A punch indentation problem is first solved to verify the scheme, and the results are compared with those obtained by the mesh rezoning method. In the next example successive stages of a deformed free surface by the injection molding of an L-shaped cavity are shown. The flows are considered as purely Newtonian.
社団法人日本機械学会の論文
1987-08-25