한국전산유체공학회:학술대회논문집
- 2006.10a
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- Pages.26-27
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- 2006
Structure of Particle Clusters Formed in Gas-Solid flows
- Tanaka, Toshitsugu (Department of Mechanical Engineering, Osaka University) ;
- Ito, Akihito (Department of Mechanical Engineering, Osaka University) ;
- Tsuji, Takuya (Department of Mechanical Engineering, Osaka University)
- Published : 2006.10.13
Abstract
Characteristics of spatial structure of particle clusters are investigated by using the flow field data obtained from three-dimensional numerical simulations. Eulerian/Lagrangian approach with two-way coupling is applied and individual particle-particle collisions are taken into account by using the hard-sphere model. More than 16 million particles are traced in the maximum case. The results show that the cluster is consisted from the multiple-spatial scale components while the low wave-number, hence the large-scale structure, is dominant. Three-dimensional structure reconstructed from the low-pass filtered data enables us to investigate the essential dynamics of particle clusters in detail.
Keywords
- Particle Cluster;
- Multi-Scale Structure;
- Self-Organization;
- Eulerian/Lagrangian Method;
- Structure Extraction