標題: | Flux-blending schemes for interface capture in two-fluid flows |
作者: | Tsui, Yeng-Yung Lin, Shi-Wen Cheng, Tong-Ting Wu, Tian-Cherng 機械工程學系 Department of Mechanical Engineering |
關鍵字: | Volume of fluid (VOF) method;Two-fluid flows;Free surface flows;Interface capturing;Unstructured meshes |
公開日期: | 1-Nov-2009 |
摘要: | This paper is aimed at developing a robust algorithm (FBICS) to capture the interface between two immiscible fluids without the need of interface reconstruction. The advection equation of the volume fraction is solved using the fully conservative finite volume method. Determination of the convective flux through each cell face is based on blending of high resolution schemes and compressive schemes to preserve the sharpness and boundedness of the interface. The flux-blending practice is fulfilled with the use of flux limiters. Test on simple advection flow problems indicates that the well-known CICSAM and HRIC schemes lose accuracy as the Courant number increases. In contrast, the present method maintains high-accuracy performance for Courant numbers up to one. The capability of the method to cope with the complicated dynamics of free surface flows is demonstrated via calculation of the collapsing flow of a water column with an obstacle. (c) 2009 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.ijheatmasstransfer.2009.06.026 http://hdl.handle.net/11536/6524 |
ISSN: | 0017-9310 |
DOI: | 10.1016/j.ijheatmasstransfer.2009.06.026 |
期刊: | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER |
Volume: | 52 |
Issue: | 23-24 |
起始頁: | 5547 |
結束頁: | 5556 |
Appears in Collections: | Articles |
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