Host: National Committee for IUTAM
Co-host: The Japan Society of Applied Physics, The Society of Chemical Engineers, Japan, Society of Automotive Engineers of Japan, The Japanese Geotechnical Society, Japan Society of Civil Engineers, The Japan Society for Industrial and Applied Mathematics, Japan Association for Wind Engineering, The Japan Society of Mechanical Engineers, The Meteorological Society of Japan, The Japan Society for Computational Engineering and Science, Japan Society for Computational Methods in Engineering, Architectural Institute of Japan, Atomic Energy Society of Japan, The Japan Society for Aeronautical and Space Sciences, The Japanese Society for Multiphase Flow, Japan Association for Earthquake Engineering, The Mathematical Society of Japan, The Japan Society of Naval Architects and Ocean Engineers, The Heat Transfer Society of Japan, The Physical Society of Japan, The Japan Society of Fluid Mechanics, The Japanese Society of Irrigation, Drainage and Rural Engineering
This paper presents a time dependent enrichment for an interface-reproducing extended finite element method (XFEM) for flow with sharp interfaces and deformable thin structures such as shells, beams, and membranes. The enrichment is formulated to be consistent to the Lagrangian time derivative of the enrichment function. The numerical data with and without the time dependence are compared to the interface-tracking computation using arbitrary Lagrangian-Eulerian (ALE) coordinates. We found the time dependent enrichment enhances stability and accuracy of the interface-reproducing XFEM for fluid-thin structure interactions.