One of the difficulties in Fluid-Structure Interaction (FSI) co-simulations is the convergence within each time step, which include the convergence of each participating solver and the data transfer among them. Especially, when the solid material non-linearity or thin geometries are involved, there are typically large deformations which could eventually result in convergence difficulty and even the failure of numerical algorithms. Adopting a hyper-elastic pipe benchmark case, this paper explores the effects of different scale factors on the overall convergence in each co-simulation time step. Three constituent components are involved and dedicated to structure, fluid and system coupling, respectively. The coupling scheme is in two-way.
|Original language||English (US)|
|Number of pages||14|
|State||Published - 2018|
|Event||International Conference on Computational Fluid Dynamics - Bacelona, Spain|
Duration: Jul 9 2018 → Jul 13 2018
Conference number: 10
|Conference||International Conference on Computational Fluid Dynamics|
|Period||7/9/18 → 7/13/18|
- fluid-structure interaction
- material non-linearity
- numerical algorithms
Lu, Q., Guleryuz, E., Vellakal, M., Taha, A., Koric, S., & Cordoba, P. (2018). Convergence Analyses for Fluid-Structure Interaction Simulation in a Thin Hyper-elastic Pipe. Paper presented at International Conference on Computational Fluid Dynamics, Bacelona, Spain.