| Autor: |
Azri, Zulaikha Asyiqin Nur, Taib, Ishkrizat, Sadikin, Azmahani, Paisal, Muhammad Sufyan Amir, Mohammed, Akmal Nizam, Mohd, Sofian |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2017, Vol. 1831 Issue 1, p1-7, 7p, 1 Diagram, 3 Charts, 5 Graphs |
| Abstrakt: |
The understanding of flow over cylinder is crucial especially in aerodynamic study. The present of vortices due to flow separation at the stagnation point of cylinder is differing with the changes of Reynolds number. This study aims to investigate the flow characteristics over cylinder with different Reynolds numbers. Computational modelling is used in predicting the flow characteristic of flow over cylinder. Two different softwares has been used: Code::Blocks as compiler and commercial code as a basis of comparison. Three different Reynolds number imposed in this study are 20, 40 and 100 to compare the accuracy and speed of convergence. Validation has been made with the previous finding to benchmark the accuracy of the result. The parameters used in this study are velocity in x and y direction, Mach numbers, drag coefficient and pressure coefficient. A brief comparison between sequential and optimized configuration which includes multiple processors is also considered. Results show that the drag coefficient and pressure are highly dependent on Reynolds numbers. The commercial code is acknowledged to be providing better results than the applied source code. However, for the optimization issue in the future, the advancement of applied source code will obtain the similar result as compared to commercial code. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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