Dynamic Semi-Structured Meshes for Fast Numerical Simulation of Multi-phase Modelling in the Energy Industry

用于能源行业多相建模快速数值模拟的动态半结构化网格

• 批准号: 2671027
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2671027
• 关键词: Dynamic; Semi; Structured; Meshes; Fast

My project is to model the Navier-Stokes equations (N-S) fast and efficient. To do so, a semi-structured meshes approach will be developed that will inherit the advantages of both structured and unstructured grids. In this project, the semi-structured mesh is created by starting with fully unstructured grids which are coarse enough to capture the complexity of the domain. Then, each unstructured element is split a few times, depending on the required resolution, to create a nested structured mesh inside each unstructured element. In this way, the code can perform the majority of the calculations based on structured elements which make the computation potentially as fast as structured based codes but with the flexibility of unstructured grids schemes. Roughly, this project has the potential of reducing simulation times by a third. This reduction is important in the energy industry and has a wide variety of applications e.g. modelling jet flows, mixing tanks, slug flows, flow in pipes etc.

我的项目是快速有效地对Navier-Stokes方程（N-S）建模。为此，将开发一种半结构化的网格方法，该方法将继承结构化和非结构化网格的优势。在此项目中，半结构化网格是通过从完全非结构化的网格开始创建的，这些网格足够粗，可以捕获域的复杂性。然后，根据所需的分辨率将每个非结构化元素拆分几次，以在每个非结构化元素内创建一个嵌套的结构化网格。这样，代码可以基于结构化元素执行大多数计算，这些元素可能使计算可能与基于结构化的代码一样快，但具有非结构化网格方案的灵活性。粗略地，该项目的潜力可以将模拟时间减少三分之一。这种减少在能源行业很重要，并且具有多种应用，例如建模喷气流，混合储罐，sl流，管道流动等。