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.

我的项目是建立Navier-Stokes方程（N-S）快速有效的模型。为此，将开发一种半结构化网格方法，该方法将继承结构化和非结构化网格的优点。在这个项目中，半结构化网格是从完全非结构化网格开始创建的，这些网格足够粗糙，可以捕捉到域的复杂性。然后，根据所需的分辨率，将每个非结构化元素分割几次，以在每个非结构化元素内创建嵌套的结构化网格。以这种方式，代码可以基于结构化元素执行大部分计算，这使得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。粗略地说，这个项目有可能将模拟时间减少三分之一。这种减少在能源工业中是重要的，并且具有各种各样的应用，例如模拟射流、混合罐、段塞流、管道中的流动等。