Publisher DOI: 10.1016/j.enganabound.2019.06.001
Title: An approximately consistent SPH simulation approach with variable particle resolution for engineering applications
Language: English
Authors: Leonardi, Marzia 
Domínguez, José M. 
Rung, Thomas 
Issue Date: Sep-2019
Source: Engineering Analysis with Boundary Elements (106): 555-570 (2019-09)
Journal or Series Name: Engineering analysis with boundary elements 
Abstract (english): This paper focuses on consistency issues caused by truncated kernels and irregular particle distributions in Smoothed-Particle-Hydrodynamics (SPH). The analysis starts from the kernel-based approximations inherent to the SPH method. An explicit kernel correction is proposed, which approximately achieves first-order consistency. The suggested approach is additionally combined with a Eulerian variable resolution approach, which conserves the number of particles but changes the individual particle mass in a transit regime. Validation studies featuring fully wetted and free-surface flow configurations are employed to assess the benefits of the combined approach. Results indicate benefits of the kernel correction and display merits and drawbacks of the variable resolution approach.
ISSN: 0955-7997
Institute: Fluiddynamik und Schiffstheorie M-8 
Type: (wissenschaftlicher) Artikel
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