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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2011.11
- 수록면
- 195 - 198 (4page)
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초록· 키워드
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In this study, we propose a lattice Boltzmann (LB) method coupled with a momentumexchange approach/fictitious domain (MEA/FD) method for the simulation of particle suspensions. This method combines the good features of the LB and the FD methods by using two unrelated meshes, namely, an Eulerian mesh for the flow domain and a Lagrangian mesh for the solid domain. The rigid body conditions are enforced by the momentum-exchange scheme in which the desired value of velocity is imposed directly in the particle inner domain by introducing a pseudo body force to satisfy the constraint of rigid body motion, which is the key idea of fictitious domain (FD) method. The main advantages of the present method are that the re-meshing procedure is avoided and one does not need to calculate the hydrodynamic force at each time step to update particle motion. Besides, it has been found that the present method preserves the merits of the LB method in simulating fluid flow. The LB-MEA/FD method has been validated by simulating two different cases (sedimentation of a single particle in an enclosure, the DKT process of two circular particles) and the results have been compared with those with other methods. The numerical evidences illustrated the capability and robustness of the present method for simulating particle suspensions.
목차
ABSTRACT
Introduction
Lattice Boltzmann Method
Results
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2014-410-000453735