A Coupled Level Set and Volume of Fluid method for automotive exterior water management applications
| Autor: | M. Dianat, Andrew Garmory, Maciej Skarysz |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Fluid Flow and Transfer Processes
business.industry Computer science Interface (computing) Mechanical Engineering General Physics and Astronomy Computational fluid dynamics Physics and Astronomy(all) Grid 01 natural sciences 010305 fluids & plasmas Computational science 010101 applied mathematics Level set 0103 physical sciences Volume of fluid method Polygon mesh 0101 mathematics business Clipping (computer graphics) ComputingMethodologies_COMPUTERGRAPHICS Communication channel |
| Zdroj: | International Journal of Multiphase Flow. 91:19-38 |
| ISSN: | 0301-9322 |
| DOI: | 10.1016/j.ijmultiphaseflow.2017.01.008 |
| Popis: | Motivated by the need for practical, high fidelity, simulation of water over surface features of road vehicles a Coupled Level Set Volume of Fluid (CLSVOF) method has been implemented into a general purpose CFD code. It has been implemented such that it can be used with unstructured and non-orthogonal meshes. The interface reconstruction step needed for CLSVOF has been implemented using an iterative ‘clipping and capping’ algorithm for arbitrary cell shapes and a re-initialisation algorithm suitable for unstructured meshes is also presented. Successful verification tests of interface capturing on orthogonal and tetrahedral meshes are presented. Two macroscopic contact angle models have been implemented and the method is seen to give very good agreement with experimental data for a droplet impinging on a flat plate for both orthogonal and non-orthogonal meshes. Finally the flow of a droplet over a round edged channel is simulated in order to demonstrate the ability of the method developed to simulate surface flows over the sort of curved geometry that makes the use of a non-orthogonal grid desirable. |
| Databáze: | OpenAIRE |
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