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Sola VOF方法是目前进行铸件充型模拟的主流方法。用VOF方法捕捉自由表面 ,难以施加自由表面条件。采用守恒标量法将气液两相作为同一相来计算 ,从根本上克服了VOF方法所遇到的计算困难。而守恒标量法在处理气 /液界面时存在着两相参数跃迁的难题。针对守恒标量法格式的特点 ,对相应的Simple格式进行了重构 ,从而解决了上述问题。根据以上原理 ,用反重力充填大平板的水力模拟试验作了验证计算 ,计算结果与试验结果基本符合
The Sola VOF method is the current mainstream method of casting filling simulation. VOF method to capture the free surface, it is difficult to impose free surface conditions. By using the conservation scalar method to calculate the gas-liquid two-phase as the same phase, it fundamentally overcomes the computational difficulties encountered by the VOF method. The conservation scalar method in dealing with the gas / liquid interface there is the problem of two-phase parameter transition. In view of the characteristics of conserved scalar format, the corresponding Simple format has been reconstructed, thus solving the above problems. According to the above principle, the hydraulic simulation test of anti-gravity filling large flat plate is made and verified. The calculation result is in good agreement with the test result