647 安定化気泡関数有限要素法を用いた実問題における気液二相流解析

概要

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An advanced VOF (volume of fluid) method with sophisticated interface evaluation is proposed for high velocity inlet/outlet two-phase flow on the incompressible viscous fluid. In the improved VOF method, the stabilized bubble function finite element with high computational efficiency, numerical stability, and acceptable accuracy is employed to solve the very severe inflow/outflow problems. The exact interface expression suited to the finite element analysis is derived to estimate precisely the interface of the gas-liquid based on the digitizer method. Our proposed method can handle kind of ill-conditioned problems in industry, which are usually impossible to be treated by conventional approach. By applying our scheme to two-phase flow problems in steel converter and micro inject, under some collaboration with experimental researchers, it is confirmed that our method is very powerful from micro scale to macro scale.
一般社団法人日本機械学会の論文
2003-11-22