期刊
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW
卷 44, 期 -, 页码 276-283出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ijheatfluidflow.2013.06.008
关键词
Lattice Boltzmann method; CFD; Aneurysm; GPU
资金
- Erlangen Regional Computing Center (RRZE)
- New Hungary Development Plan [TMOP-4.2.1/B-09/1/KMR-2010-0002]
- [TMOP-4.2.2.B-10/1-2010-0009]
The unsteady fluid flow inside the complex geometry of an intracranial aneurysm during a cardiac cycle was simulated. The results obtained by several versions of a lattice Boltzmann based code were compared with the results of Ply and LDA measurements and with those of a commercial finite volume solver. The best version from the tested lattice Boltzmann codes was chosen for further comparisons and grid convergence measurement. It was shown that the lattice Boltzmann method is capable of producing results with an accuracy comparable to the finite volume solver in a 3D unsteady flow and also that the results are in good agreement with the experimental results. It was also shown that using a GPU implementation of the lattice Boltzmann method it is possible to significantly reduce the run-time length compared to the CPU only implementation of the lattice Boltzmann method. (C) 2013 Elsevier Inc. All rights reserved.
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