Adaptive Grid Refinement Techniques for Particulate Flow Simulations with the Lattice Boltzmann Method

Beitrag bei einer Tagung
(Abstract zum Poster)


Details zur Publikation

Autorinnen und Autoren: Rettinger C
Jahr der Veröffentlichung: 2018


Abstract










Particulate
flows are encountered in various application fields, examples being
fluidized beds in chemical engineering and sediment transport in
riverbeds relevant in environmental engineering.


Here,
simulations that feature geometrically fully resolved particles are
desired since they enable accurate predictions from first principles.


The
high computational costs, however, usually impose a strong limitation
on the system size.


In many
cases, the flow structures in the vicinity of the particles are of
special interest since they influence the particle motion and thus
need to be appropriately numerically resolved.


On the
other hand, regions without particles have less restrictive
resolution requirements and allow for coarser grids.


With
adaptive grid refinement, we can significantly improve the efficiency
of such simulations since the overall workload is reduced.


We
present and evaluate different refinement approaches for particulate
flows by comparing their accuracy and performance to simulations with
uniform grids.


Furthermore,
we discuss load balancing strategies to distribute the workload
evenly among the available computing resources.


This is
essential for efficient massively parallel simulations and requires
accurate predictors for the local workload generated by the coupled
simulation.


Illustrating
examples from the aforementioned application fields will be presented
to demonstrate the generality and flexibility of our approach.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Rettinger, Christoph
Lehrstuhl für Informatik 10 (Systemsimulation)


Zitierweisen

APA:
Rettinger, C. (2018). Adaptive Grid Refinement Techniques for Particulate Flow Simulations with the Lattice Boltzmann Method. Poster presentation at Platform for Advanced Scientific Computing (PASC) Conference, Basel, CH.

MLA:
Rettinger, Christoph. "Adaptive Grid Refinement Techniques for Particulate Flow Simulations with the Lattice Boltzmann Method." Presented at Platform for Advanced Scientific Computing (PASC) Conference, Basel 2018.

BibTeX: 

Zuletzt aktualisiert 2019-24-04 um 06:21