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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >A coupled level set and volume-of-fluid method for the buoyancy-driven motion of fluid particles
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A coupled level set and volume-of-fluid method for the buoyancy-driven motion of fluid particles

机译：液位浮力驱动运动的液位和流体体积耦合方法

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摘要

A level set method is combined with the volume-of-fluid method so that the coupled method not only can calculate an interfacial curvature accurately but also can achieve mass conservation well. The coupled level set and volume-of-fluid (CLSVOF) method is applied to the buoyancy-driven motion of fluid particles. For its easy and efficient implementation, we develop a complete and efficient interface reconstruction algorithm which is based on the explicit relationship between the interface configuration and the fluid volume function. Also, a cubic-interpolated propagation (CIP) scheme is combined with the CLSVOF method to calculate the advection terms of the momentum equation accurately. The improved CLSVOF method is applied for numerical simulation of bubbles and drops resing or falling in a quiescent fluid. The numerical results are found to preserve mass conservation and to be in good agreement with the data reported in the literature.
机译：水平集方法与流体体积方法相结合，使得耦合方法不仅可以准确计算界面曲率，而且可以很好地实现质量守恒。液位和流体体积的耦合方法（CLSVOF）被应用于流体颗粒的浮力驱动运动。为了方便有效地实现，我们基于接口配置和流体体积函数之间的显式关系，开发了完整高效的接口重构算法。此外，三次插值传播（CIP）方案与CLSVOF方法相结合，可以准确地计算动量方程的对流项。改进的CLSVOF方法用于数值模拟气泡和树脂滴或在静态流体中掉落。发现数值结果可以保持质量守恒，并且与文献中报道的数据高度吻合。

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