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Computational investigations and grid refinement study of 3D transient flow in a cylindrical tank using OpenFOAM

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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