UTHM Institutional Repository

Comparative analysis on flow over cylinder between commercial code and open source algorithm

Nur Azri, Zulaikha Asyiqin and Taib, Ishkrizat and Sadikin, Azmahani and Mohd, Sofian and Amir Paisal, Muhammad Sufyan (2016) Comparative analysis on flow over cylinder between commercial code and open source algorithm. In: 7th International Conference on Mechanical and Manufacturing Engineering, Sustainable Energy Towards Global Synergy, 1–3 August 2016, Jogjakarta, Indonesia.

Full text not available from this repository.

Abstract

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 differ 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 software 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.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Flow over cylinder; flow disturbances; pressure coefficient; drag coefficient
Subjects: Q Science > QA Mathematics > QA297 Numerical analysis. Analysis
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Energy and Thermofluid Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 13 Aug 2018 03:23
Last Modified: 13 Aug 2018 03:23
URI: http://eprints.uthm.edu.my/id/eprint/9469
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item