...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hydroinformatics >Simulation of free surface flows using volume of fluid method and genetic algorithm
【24h】

Simulation of free surface flows using volume of fluid method and genetic algorithm

机译：利用流体体积和遗传算法模拟自由表面流

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, details of a numerical model development for simulation of fluid flows with moving free surface are presented. The unsteady incompressible Navier-Stokes equations on a fixed grid system are used to obtain velocity and pressure values in the computational domain and volume of fluid (VOF) method is used to determine free surface location. In order to reduce numerical smearing and increase accuracy of numerical modeling of fluid flow with moving free surface, a new free surface-tracking method is proposed. The proposed method is a combination of genetic algorithm and free surface tracking method based on donor and acceptor scheme. The specification of the new combinational method can be summarized in determining orientation vector and plane constant to represent the free surface orientation in each cell. The proposed algorithm can be easily used in any unstructured grids. In this method, the fluid flow equations are explicitly discretized with the finite volume method and the projection method is used to determine the velocity and pressure magnitude in computational domain. Validity of the new solution algorithm is demonstrated through its application to the dam break and the bore motion examples.
机译：在本文中，提出了用于模拟具有自由表面移动的流体流动的数值模型开发的详细信息。固定网格系统上的非定常不可压缩Navier-Stokes方程用于在计算域中获取速度和压力值，流体体积（VOF）方法用于确定自由表面位置。为了减少数值拖尾现象，提高自由表面运动的流体流动数值模拟的准确性，提出了一种新的自由表面跟踪方法。该方法是基于供体和受体方案的遗传算法和自由表面跟踪方法的结合。新的组合方法的规范可以总结为确定方向矢量和平面常数以表示每个单元中的自由表面方向。所提出的算法可以轻松地用于任何非结构化网格中。在这种方法中，用有限体积法将流体方程式明确离散化，并使用投影法确定计算域中的速度和压力幅值。通过将其应用于大坝溃坝和钻孔运动实例，证明了该新算法的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号