Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session E32: Lattice Boltzmann and Smoothed Particle Hydrodynamics Methods
5:10 PM–6:28 PM,
Sunday, November 18, 2018
Georgia World Congress Center
Room: B404
Chair: Ulf Schiller, Clemson University
Abstract ID: BAPS.2018.DFD.E32.6
Abstract: E32.00006 : Weakly Compressible SPH for Interfacial Flow*
6:15 PM–6:28 PM
Presenter:
Mingyu Zhang
(Institute of Applied Physics and Computational Mathematics, Beijing, China, Institute of Applied Physics and Computational Mathematics, Beijing, China)
Author:
Mingyu Zhang
(Institute of Applied Physics and Computational Mathematics, Beijing, China, Institute of Applied Physics and Computational Mathematics, Beijing, China)
Interface is a key issue in the study of multiphase flows existing in our daily life and industrial applications. Many mesh methods have been developed to treat the interface, including Level set method (LSM), volume of fluid (VOF), front tracking method (FT), and phase field method, et al. As a meshfree method, Smoothed Particle Hydrodynamics (SPH) can easily handle complex flows with interface.
Weakly compressible SPH (WCSPH) for interfacial flow are developed in this research. The developed method has higher accuracy, efficiency and stability. In the WCSPH for free surface flow, surface particle is located and interface is reconstructed. In the WCSPH for multiphase flow, level set method is used to describe the interface and ghost fluid method is used to handle the jump condition at the interface.
Numerical tests are implemented for drop-film interaction in 2D and 3D, parasitic currents in static drop, oscillation of elliptic drop and square drop. The developed WCSPH for interfacial flow are proved to be an useful tool for complex flows with interface.
In the future, the developed WCSPH for interfacial flow will be applied to investigate the complex flows. And the compressible version will be developed.
*Support from NSFC grant 11372050 is gratefully acknowledged.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.E32.6
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