English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

This paper presents a generalised and efficient wall boundary treatment inthe smoothed particle hydrodynamics (SPH) method for 3-D complex and arbitrarygeometries with single- and multi-phase flows to be executed on graphicsprocessing units (GPUs). Using a force balance between the wall and fluidparticles with a novel penalty method, a pressure boundary condition is appliedon the wall dummy particles which effectively prevents non-physical particlepenetration into the wall boundaries also in highly violent impacts andmulti-phase flows with high density ratios. A new density reinitialisationscheme is also presented to enhance the accuracy. The proposed method is verysimple in comparison with previous wall boundary formulations on GPUs thatenforces no additional memory caching and thus is ideally suited forheterogeneous architectures of GPUs. The method is validated in various testcases involving violent single- and multi-phase flows in arbitrary geometriesand demonstrates very good robustness, accuracy and performance. The new wallboundary condition treatment is able to improve the high accuracy of itsprevious version \citep{ADAMI2012wall} also in complex 3-D and multi-phaseproblems, while it is efficiently executable on GPUs with single precisionfloating points arithmetic which makes it suitable for a wide range of GPUs,including consumer graphic cards. Therefore, the method is a reliable solutionfor the long-lasting challenge of the wall boundary condition in the SPH methodfor a broad range of natural and industrial applications.

Generalised and efficient wall boundary condition treatment in GPU-accelerated smoothed particle hydrodynamics