Скачать или смотреть The 2D dam-break benchmark dataset • mixing • 5M particles

This animation reproduces a flow field from computer simulations of the benchmark case '2D dam break impinging on a vertical wall' for SPH used in 2019 by Meringolo et al. "A dynamic δ-SPH model: how to get rid of diffusive parameter tuning", https://doi.org/10.1016/j.compfluid.2...

The corresponding dataset with the simulation input, source code and output files is available from the 4TU.ResearchData under a CC BY 4.0 licence • This dataset is part of a collection of simulations at the resolution parameters H/dx=800, 1600, 3200, 6400 and problem sizes of 1M, 5M, 20M, 82M fluid particles respectively • See below for access information

WHAT CAN I DO WITH A DATASET? • Accessible pre-computed, highly-resolved datasets enable users to inspect, visualise, reproduce, or restart simulations at their will • Possible usages include: educational and presentational support; anticipations of the loss of information while one can only afford lower resolutions; reference simulations for comparing SPH solvers with similar settings; baseline for sensitivity studies to numerical and physical parameters; baseline for the accuracy and performance gains produced by resulting from numerical expedients and new submodels; mining ground for data exploration of nonlinear events (fragmentations/collapses/impulses)

WHAT IS A 2D DAM BREAK? • A boxful of water is released upon removing one side of the box, not shown, and flows inside a larger container outlined in black. The water hits the container’s end wall and splashes up and back again • This experiment, whether numerical or material, is often called ‘dam break’ because releasing suddenly a mass of still water associates with the failure of a dam • In the computer simulations of this dataset collection, air is not modelled, the flow is two-dimensional, and the physical quantities are made non-dimensional by scaling

WHAT CAN I SEE HERE? • The shading displays the particle identification number • Each particle keeps its number and colour shade while the simulation progresses, so one can appreciate at a glance where and how finely the water volume gets displaced, stirred and shaken • The ratio between the initial water height and the particle spacing is 1600 • The fluid particle count is 5,120,000

WHAT DO I SEE HERE? • The collection is at https://doi.org/10.4121/c.5353691. Please refer first to the 15-page document Commentary.pdf in the entry-point dataset "[0] SPH simulations of a 2D dam break against a vertical wall. General information on the collection", https://doi.org/10.4121/14309240. There you can also inspect the separate frames of the animation and download the data subset of your interest
Dataset information • Name: "[3] Lower-middle-resolution SPH simulations of a 2D dam-break flow against a vertical wall. Output data for H/dx=1600, 5M fluid particles" • Size: 33 GiB, 36 GB • DOI https://doi.org/10.4121/10.4121/14309081

Rendered with ParaView 5.7.0 and Nvidia IndeX plug-in • This video is part of the channel sph.tudelft.nl at http://bit.ly/sph_tube​ • sph.tudelft.nl is on Twitter at   / sph_delft​  

The SPH solver is an edited version of the open-source DualSPHysics v5.0 • Please check out https://dual.sphysics.org/​ for features, licensing and downloading • The Delft Institute of Applied Mathematics is not a member of the development team of DualSPHysics