Journal of computational fluids engineering (한국전산유체공학회지)
- Volume 10 Issue 1
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- Pages.1-7
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- 2005
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- 1598-6071(pISSN)
NUMERICAL ANALYSIS OF FLOW AROUND RECTANGULAR CYLINDERS WITH VARIOUS SIDE RATIOS
- Rokugou Akira (YKK Corp.) ;
- Okajima Atsushi (Graduate School of Natural Sci. & Tech., Kanazawa Univ.) ;
- Gutierrez Isaac (Graduate Student, Graduate School of Natural Sci. & Tech., Kanazawa Univ.)
- Published : 2005.03.01
Abstract
Three-dimensional numerical analysis of the flow around rectangular cylinders with various side ratios, D/H, from 0.2 to 2.0, was carried out for Reynolds number of 10³ by using a multi-directional finite difference method on a regular-arranged multi-grid. The predicted results are in good agreement with the experimental data. It is found that fluid dynamic characteristics of rectangular cylinders alternate between the high-pressure mode and the low-pressure mode of the base pressure for D/H=0.2-0.6. We show that this phenomenon is induced by the change of the flow pattern around rectangular cylinders.