论文标题
计算流体结构交互的概述:方法和应用
An Overview of Computational Fluid Structure Interaction: Methods and Applications
论文作者
论文摘要
在过去的几十年中,计算能力以及模拟现实世界现象的技术得到了迅速改善,这使我们能够理解物理学并开发出胜过现有的新系统。在多物理问题的领域中,已经研究了流体和结构相互作用,并引入了各种数值方法来解决它们。在本文中,已经对最常用的数值技术(FSI)问题进行了广泛的综述。了解每种方法的适用性,因此已经提供了使用不同方法的关键推理,这也是最重要的。提出了应用领域,从能量收集过程到人声绳的模拟以及食道内部的推注(食物)的运动。还讨论了适用于每个应用程序的合适数值方法。到目前为止开发的数值方法是根据离散化,进行耦合的方式和基于网格划分的方式(将整个域分为在内部的小块中,将变量变化近似)。讨论了目前可用的数值方法提出的挑战和不稳定性,并在列出了由于这些方法而可能存在错误的潜在应用。在本文末尾,还讨论了一组未通过流体结构相互作用的镜头探索的应用领域。
Over the past few decades, there has been a rapid improvement in computational power as well as techniques to simulate the real world phenomenon which has enabled us to understand the physics and develop new systems which outperform the existing ones. In the domain of multi-physics problems, fluid and structure interactions have been studied and various numerical methods are introduced to solve them. An extensive review of most commonly employed numerical techniques to solve fluid structure interaction(FSI) problems has been done in this article. It also becomes utmost important to understand the applicability of each method and hence a critical reasoning for usage of different methods has been provided. Application domains are presented which range from energy harvesting processes to simulation of human vocal cords and movement of bolus(food) inside esophagus. Suitable numerical methods applied for each application have also been discussed. Numerical methods developed so far are classified in particular groups based on the discretization, the manner in which coupling is performed and on the basis of meshing(division of entire domain into small blocks inside which variation of a variable is approximated). Challenges and instabilities posed by presently available numerical methods are discussed and potential applications where there is a possibility of errors due to these methods have been listed. A brief set of application areas which have not been explored through the lens of fluid structure interaction also have been discussed at the end of this article.