Recent developments in FEM-CFDThe current status of CFD with regard to unstructured grids employing finite element methods and Eulerian frames is reviewed. Algorithms suitable for the computation of large three-dimensional problems involving flow past arbitrary geometries are developed. Adaptive mesh refinement strategy is reviewed, and domain splitting or local time-stepping are briefly addressed. The development of search algorithms of optimal order, variable time-stepping Jacobi smoothers for elliptic problems, and transport concepts for hyperbolics to help achieve good performance for unstructured multigrid processes is discussed. As examples, transient supersonic flow in a channel, regular shock reflection of a wall, viscous flow past a protruberance, potential flow past a cylinder, and Burgers equation are considered.
Document ID
19870024137
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Loehner, R. (University Coll. of Swansea United Kingdom)
Morgan, K. (University Coll. of Swansea United Kingdom)
Peraire, J. (University Coll. of Swansea United Kingdom)
Zienkiewicz, O. C. (Swansea, University College, United Kingdom)