Computation of mould filling processes with a moving Lagrangian interface technique
Computation of mould filling processes with a moving Lagrangian interface technique
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使用移动拉格朗日接口技术计算模具填充过程
DOI：
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发表时间：
2002
期刊：
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通讯作者：
T. Tezduyar
中科院分区：
文献类型：
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作者：
M. Cruchaga;D. Celentano;T. Tezduyar
摘要提出了涉及移动界面的非等温流问题的计算方法。拉格朗日界面技术，dened在axed-meshnite元素制定的上下文中的不可压缩流，被用来更新界面的位置。使用全局质量校正算法来精确地执行全局质量守恒。Navier-Stokes方程的求解采用了改进的子单元积分技术，以更准确地考虑界面上流体性质的突然变化。所描述的方法适用于两个造型问题。版权？John Wiley & Sons，Ltd.
SUMMARY Computation of non-isothermalow problems involving moving interfaces is presented. A Lagrangian interface technique, dened in the context of axed-meshnite element formulation for incompressible �ows, is employed to update the interface position. A global mass-corrector algorithm is used to accu- rately enforce the global mass conservation. The Navier-Stokes equations are solved with an improved sub-element integration technique to more accurately account for sudden changes in theuid properties across the interface. The method described is applied to two mouldlling problems. Copyright ? 2002 John Wiley & Sons, Ltd.