A Study on the Accuracy of Finite Volume and and Boundary Element Methods in Laminar Separated Flows
The development of accurate and efficient numerical methods for simulating incompressible flows is a challenging area of computational fluid dynamics because of its importance in a wide range of physical and industrial applications. Most of the numerical methhods used for simulating incompressible flows are finite volume and finite difference methods. Although very good predictions have been achieved by using these methods, there are still several laminar flow problems where very fine grids have to be used for predicting the correct flow structure. Such flow problems concern nonlinear phenomena, separated flows and instabilities. The very rapid advances in the computing power provide the possibility to study complex flow problems using very fine grids, but it is not still enough for studying with high accuracy unsteady, separated three-dimensional flows. Therefore the development and investigation of new numerical methods still remains a basic research direction in computational fluid dynamics.
KeywordsComputational Fluid Dynamic Boundary Element Boundary Element Method Finite Volume Method Incompressible Flow
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