Sakri, F. M. and Ali, M. S. M. and Salim, S. A. Z. S. (2016) Computational investigations and grid refinement study of 3D transient flow in a cylindrical tank using OpenFOAM. In: 6th Innovation in Aerospace Engineering and Technology, AEROTECH 2016, 8 November 2016 through 9 November 2016, Kuala Lumpur; Malaysia.
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Abstract
The study of physic fluid for a liquid draining inside a tank is easily accessible using numerical simulation. However, numerical simulation is expensive when the liquid draining involves the multi-phase problem. Since an accurate numerical simulation can be obtained if a proper method for error estimation is accomplished, this paper provides systematic assessment of error estimation due to grid convergence error using OpenFOAM. OpenFOAM is an open source CFD-toolbox and it is well-known among the researchers and institutions because of its free applications and ready to use. In this study, three types of grid resolution are used: coarse, medium and fine grids. Grid Convergence Index (GCI) is applied to estimate the error due to the grid sensitivity. A monotonic convergence condition is obtained in this study that shows the grid convergence error has been progressively reduced. The fine grid has the GCI value below 1%. The extrapolated value from Richardson Extrapolation is in the range of the GCI obtained.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Aerospace engineering, Computational fluid dynamics, Errors, Extrapolation, Metal melting, Numerical methods, Numerical models, Tanks (containers) |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Malaysia-Japan International Institute of Technology |
| ID Code: | 72975 |
| Deposited By: | Muhammad Atiff Mahussain |
| Deposited On: | 26 Nov 2017 03:37 |
| Last Modified: | 26 Nov 2017 03:37 |
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