TY - GEN
T1 - Effects of mesh density and coupling control parameter in numerical simulation of fluid-structure interaction
AU - Lai, Ming
AU - Feng, Shun Shan
AU - Huang, Guang Yan
AU - Zhou, Tong
PY - 2011
Y1 - 2011
N2 - Parameters setting in numerical simulation of Fluid-Structure Interaction (FSI) is important to get accurate results. A variable without units was defined to describe the mesh density. Effects of that variable and coupling control parameter in numerical simulation of FSI were studied. As an example, the underwater contact explosion on circular plate was simulated using the FEM programe LS-DYNA. The results of numerical simulation were compared with experimental data. The results showed that calculation errors were reduced at first and then increased according to the mesh density increased. Optimum range of mesh density was 2-3 and ratio of fluid mesh density to structure mesh density was 2-1. The optimum aspect ratio of structure mesh does not exceed 2. Penetration could be modified through adjusted coupling control parameters. The modifying way had no effect on structural deformation and fracture.
AB - Parameters setting in numerical simulation of Fluid-Structure Interaction (FSI) is important to get accurate results. A variable without units was defined to describe the mesh density. Effects of that variable and coupling control parameter in numerical simulation of FSI were studied. As an example, the underwater contact explosion on circular plate was simulated using the FEM programe LS-DYNA. The results of numerical simulation were compared with experimental data. The results showed that calculation errors were reduced at first and then increased according to the mesh density increased. Optimum range of mesh density was 2-3 and ratio of fluid mesh density to structure mesh density was 2-1. The optimum aspect ratio of structure mesh does not exceed 2. Penetration could be modified through adjusted coupling control parameters. The modifying way had no effect on structural deformation and fracture.
KW - Fluid-Structure Interaction (FSI)
KW - coupling control parameter
KW - mesh density
KW - numerical simunation
KW - underwater contact explosion
UR - http://www.scopus.com/inward/record.url?scp=83755219551&partnerID=8YFLogxK
U2 - 10.1109/ICCIS.2011.140
DO - 10.1109/ICCIS.2011.140
M3 - Conference contribution
AN - SCOPUS:83755219551
SN - 9780769545011
T3 - Proceedings - 2011 International Conference on Computational and Information Sciences, ICCIS 2011
SP - 1140
EP - 1143
BT - Proceedings - 2011 International Conference on Computational and Information Sciences, ICCIS 2011
T2 - 2011 International Conference on Computational and Information Sciences, ICCIS 2011
Y2 - 21 October 2011 through 23 October 2011
ER -