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Title: Numerical simulation of fluid-structure interaction using modified ghost fluid method and Naviers equations
Authors: Liu, T.G.
Ho, J.Y.
Khoo, B.C. 
Chowdhury, A.W.
Keywords: Eulerian-Lagrangian coupling
Eulerian-Lagrangian Riemann problem
Fluid-structure interaction
Ghost fluid method
Modified ghost fluid method
Issue Date: Jul-2008
Citation: Liu, T.G., Ho, J.Y., Khoo, B.C., Chowdhury, A.W. (2008-07). Numerical simulation of fluid-structure interaction using modified ghost fluid method and Naviers equations. Journal of Scientific Computing 36 (1) : 45-68. ScholarBank@NUS Repository.
Abstract: In this work, we deal with the 1D compressible fluid coupled with elastic solid in an Eulerian-Lagrangian system. To facilitate the analysis, the Naviers equation for elastic solid is cast into a 2×2 system similar to the Euler equation but in Lagrangian coordinate. The modified Ghost Fluid Method is employed to treat the fluid-elastic solid coupling, where an Eulerian-Lagrangian Riemann problem is defined and a nonlinear characteristic from the fluid and a Riemann invariant from the solid are used to predict and define the ghost fluid states. Theoretical analysis shows that the present approach is accurate in the sense of approximating the solution of the Riemann problem at the interface. Numerical validation of this approach is also accomplished by extensive comparison to 1D problems (both water-solid and gas-solid) with their respective analytical solutions. © 2007 Springer Science+Business Media, LLC.
Source Title: Journal of Scientific Computing
ISSN: 08857474
DOI: 10.1007/s10915-007-9176-2
Appears in Collections:Staff Publications

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