Abstract
In this paper a dynamic refinement algorithm forSmoothed Particle Hydrodynamics (SPH) is presented. Thevariable resolution in SPH is achieved using both the particlesplitting and a novel conservative particle coalescing procedure.The particle splitting procedure is able to increase the resolutionby increasing the number of particles in the domain, andconversely, the resolution is reduced by coalescing particles (toimprove the efficiency). This is accomplished while conservingboth mass and momentum, and calculating the smoothing lengthof the new particles by minimizing the density error. The generalapplicability of the new dynamic particle refinement procedureis assessed by applying it to shallow water equations (SWEs) andtesting the numerical scheme against different reference solutions.In the real-life test case the particle coalescing procedure leadsto a reduction of the computational time by a factor of 15.
Original language | English |
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Title of host publication | Proc. 6th International SPHERIC Workshop |
Editors | T Rung, C Ulrich |
Pages | 93-100 |
Number of pages | 8 |
Publication status | Published - 2011 |
Event | 6th International SPHERIC Workshop - TUHH Hamburg Duration: 8 Jun 2011 → 10 Jun 2011 |
Conference
Conference | 6th International SPHERIC Workshop |
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City | TUHH Hamburg |
Period | 8/06/11 → 10/06/11 |