Numerical Simulation of Liquids Draining From a Tank Using OpenFOAM

Sakri, Fadhilah Mohd; Ali, Mohamed Sukri Mat; Zaki, Sheikh Ahmad; Muhamad, Sallehuddin

doi:10.1088/1757-899x/226/1/012152

Cited by 4 publications

(2 citation statements)

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“…This problem can be observed during the draining process inside a cylindrical tank. Air-core vortex is one of the rotational motions of the liquid with air entering the vortex through its core [10]. Air-core vortex formation occurs when a dip is formed on the top surface of the liquid as the liquid level reaches a certain critical height, Hc [11].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study on Air-Core Vortex Inside Draining Tank Using Different Computational Modelling Approaches

et al. 2018

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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.

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Section: Introductionmentioning

confidence: 99%

“…When the core of the vortex reaches the bottom of the tank, the rate of liquid draining is decreased and the flow at the outlet nozzle is unsteady and highly rotational. The air-core vortex, if not properly controlled, can cause vibrations that will reduce the life and efficiency of the storage tank [10].…”

Section: Introductionmentioning

confidence: 99%