Direct Numerical Simulation of Particulate Flows on 294912 Processor Cores

Beitrag bei einer Tagung


Details zur Publikation

Autor(en): Götz J, Iglberger K, Stürmer M, Rüde U
Jahr der Veröffentlichung: 2010
Tagungsband: 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis
Seitenbereich: 1-11
ISBN: 978-1-4244-7559-9
Sprache: Englisch


Abstract


This paper describes computational models for particle-laden flows based on a fully resolved fluid-structure interaction. The flow simulation uses the Lattice Boltzmann method, while the particles are handled by a rigid body dynamics algorithm. The particles can have individual non-spherical shapes, creating the need for a non-trivial collision detection and special contact models. An explicit coupling algorithm transfers momenta from the fluid to the particles in each time step, while the particles impose moving boundaries for the flow solver. All algorithms and their interaction are fully parallelized. Scaling experiments and a careful performance analysis are presented for up to 294 912 processor cores of the Blue Gene at the Julich ¨ Supercomputing center. The largest simulations involve 264 million particles that are coupled to a fluid which is simultaneously resolved by 150 billion cells for the Lattice Boltzmann method. The paper will conclude with a computational experiment for the segregation of suspensions of particles of different density, as an example of the many industrial applications that are enabled by this new methodology.



FAU-Autoren / FAU-Herausgeber

Götz, Jan Dr.-Ing.
Lehrstuhl für Informatik 10 (Systemsimulation)
Iglberger, Klaus Dr.-Ing.
Zentralinstitut für Scientific Computing (ZISC)
Rüde, Ulrich Prof. Dr.
Lehrstuhl für Informatik 10 (Systemsimulation)
Stürmer, Markus
Lehrstuhl für Informatik 10 (Systemsimulation)


Zitierweisen

APA:
Götz, J., Iglberger, K., Stürmer, M., & Rüde, U. (2010). Direct Numerical Simulation of Particulate Flows on 294912 Processor Cores. In 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis (pp. 1-11). New Orleans, US.

MLA:
Götz, Jan, et al. "Direct Numerical Simulation of Particulate Flows on 294912 Processor Cores." Proceedings of the Supercomputing '10, New Orleans 2010. 1-11.

BibTeX: 

Zuletzt aktualisiert 2018-09-08 um 22:38