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Title: Numerical study on air-core vortex inside draining tank using different computational modelling approaches
Authors: Fadhilah Mohd Sakri
Mohamed Sukri Mat Ali
Sheikh Ahmad Zaki Shaikh Salim
Mohd Amzar Azizan
Keywords: Air-core,
draining tank
turbulence model assessment
Issue Date: 15-Dec-2018
Publisher: Jurnal Teknologi
Abstract: Accurate numerical simulation of liquid draining is important to study the physics fluid flow. However, liquid draining involves multiphase and rotational flows, where numerical simulation is expensive to accurately recreate these flow behaviors. The accuracy of numerical results has been also debatable and it is mainly affected by the computational modeling approaches. Therefore, this study evaluates different computational modelling approaches such as DNS, RANS k-ε, RANS k-ω and LES turbulence models. The results for the draining time and flow visualization of the generation of an air-core are in a good agreement with the available published data. The Direct Numerical Simulation (DNS) seems most reasonably satisfactory for VOF studies relating air-core compared to other different turbulence modeling approaches
URI: 10.11113/jt.v81.11075
Appears in Collections:Journal Articles

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