71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

P0036: Droplet Impact on Mettalic Meshes

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Authors

• Konstantinos Vontas, 1.Department of Mechanical Engineering, Technical University of Denmark, Nils Koppels Allé, 2800, Kgs. Lyngby, Denmark
• Anastasios Georgoulas, 2. Advanced Engineering Centre, University of Brighton, Lewes Road, BN2 4GJ, Brighton, East Sussex, U.K.
• Jens Honore Walther, 1.Department of Mechanical Engineering, Technical University of Denmark, Nils Koppels Allé, 2800, Kgs. Lyngby, Denmark and 3. Computational Science & Engineering Laboratory, Swiss Federal Institute of Technology Zurich, Clausiusstrasse 33, CH-8092 Zurich, Switzerland

DOI: https://doi.org/10.1103/APS.DFD.2018.GFM.P0036

This poster presents a droplet of water after impacting on a metallic mesh. The model is using an enhanced VOF-based numerical code where a smoothing approach that filters out spurious current velocities as well as Kistler's dynamic contact angle treatment to accurately account for surface wettability effects have been implemented within the general framework of the open-source CFD toolbox OpenFOAM, for isothermal droplet impact phenomena. The grid generation was performed by using OpenFOAM’s utility snappyHexMesh. The aim of this work is to illustrate that the proposed CFD-based numerical simulation tool can be valuable in extracting quantitative information that cannot be extracted from the experimental measurements and hence give further insight into the complex underpinned mechanisms in the proposed droplet impact phenomenon. An example of these information includes the percentage of liquid that remains entrapped on the metallic mesh, over time.