Kandukuri, K.R. and Jampana, Phanindra Varma (2021) AUTOMATED EXTRACTION OF FREE-SURFACE AND ESTIMATION OF AIR ENTRAINMENT USING OPENFOAM. In: 5th-6th Thermal and Fluids Engineering Conference, TFEC 2021, 26 May 2021through 28 May 2021, Virtual, Online.

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In multi-phase computational fluid dynamic simulations, there exist many techniques to extract the interface cells and spatial locations. These techniques do not differentiate between free-surface locations and other phase-boundaries (e.g. bubbles or drops). Extraction of free-surface spatial locations is required in many multi-phase phenomena. However, air entrainment processes occur only at the free-surface. Flow and geometrical parameters at free-surface locations are required to estimate and predict the amount of air-entrained. In this work, we develop an algorithm to extract the free-surface spatial locations and corresponding flow parameters, estimated the local free-surface and the amount of gas holdup at each time step. This algorithm is used to extend the multi-phase solver in OpenFOAM CFD to estimate the amount of air entrained at each time step automatically. We compare the proposed method with a manually estimated volume fraction of air below the free-surface from the image generated in Para View. We show that the results of the proposed method match with that of the manually estimated volume fraction. © 2021 Begell House Inc.. All rights reserved.

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IITH Creators:
IITH CreatorsORCiD
Jampana, Phanindra Varma
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Air Entrainment, Free-Surface, OpenFOAM, Plunging Jet
Subjects: Chemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 17 Sep 2022 05:07
Last Modified: 17 Sep 2022 05:07
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