Hassan Oubay, Morgan Kenneth, Weatherill Nigel
Civil and Computational Engineering Centre, School of Engineering, University of Wales, Swansea SA2 8PP, UK.
Philos Trans A Math Phys Eng Sci. 2007 Oct 15;365(1859):2531-52. doi: 10.1098/rsta.2007.2020.
A review of a procedure for the simulation of time-dependent, inviscid and turbulent viscous, compressible flows involving geometries that change in time is presented. The adopted discretization technique employs unstructured meshes and both explicit and implicit time-stepping schemes. A dual time-stepping procedure and an ALE formulation enable flows involving moving boundary components to be included. Techniques that have been developed to maintain the validity of the unstructured mesh and to allow for the capture of moving flow features are also reviewed. Using the in-house developed techniques, some examples are included to demonstrate the use of the approach for the simulation of a number of flows of practical industrial interest.
本文介绍了一种用于模拟随时间变化、无粘和湍流粘性、可压缩流动的过程，该流动涉及随时间变化的几何形状。所采用的离散化技术采用非结构化网格以及显式和隐式时间步长方案。双重时间步长过程和任意拉格朗日-欧拉（ALE）公式使得能够包含涉及移动边界组件的流动。还回顾了为保持非结构化网格的有效性以及允许捕获移动流动特征而开发的技术。使用内部开发的技术，包含了一些示例，以展示该方法在模拟许多具有实际工业意义的流动中的应用。
