Large eddy simulations of flow over solid circular cylinders and rectangular blocks
Due to the rising need to understand flow across circular cylinders, many investigations have been conducted in the past. The aim of the current work was to investigate the influence of various parameters by conducting three dimensional numerical simulations for flow across a circular cylinder. B...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/67755 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Due to the rising need to understand flow across circular cylinders, many investigations
have been conducted in the past. The aim of the current work was to investigate the
influence of various parameters by conducting three dimensional numerical simulations
for flow across a circular cylinder. By obtaining the drag and lift coefficients, the effect
of different Reynolds number and number of cells would be compared. This simulation
was done using Large Eddy Simulation. By comparing the results of Re=3900 to
various published results, LES was proved to show good agreement with the other
papers. Therefore, LES could be used for further investigations of higher Reynolds
numbers especially those in supercritical and transitional region.
Simulations using LES were also conducted for rectangular blocks to compare results
with previous experiments. The results also showed that LES was proved to be in good
agreement with other papers. Therefore, LES modeling was proven to be a very
powerful and useful tool for numerical simulations. |
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