Comparative study on triangular and quadrilateral meshes by a finite-volume method with a central difference scheme
KAUST DepartmentComputational Transport Phenomena Lab
Physical Sciences and Engineering (PSE) Division
Environmental Science and Engineering Program
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AbstractIn this article, comparative studies on computational accuracies and convergence rates of triangular and quadrilateral meshes are carried out in the frame work of the finite-volume method. By theoretical analysis, we conclude that the number of triangular cells needs to be 4/3 times that of quadrilateral cells to obtain similar accuracy. The conclusion is verified by a number of numerical examples. In addition, the convergence rates of the triangular meshes are found to be slower than those of the quadrilateral meshes when the same accuracy is obtained with these two mesh types. © 2012 Taylor and Francis Group, LLC.
SponsorsThis study is supported by National Key Projects of Fundamental R/D of China (973 Project: 2011CB610306) and National Science Foundation of China (No. 51176204 and No. 51136004). This study is also partially supported by KAUST's faculty Baseline Research Fund (BRF) awarded to Shuyu Sun.
PublisherInforma UK Limited