The open archive for STFC research publications

Full Record Details

Persistent URL http://purl.org/net/epubs/work/46400815
Record Status Checked
Record Id 46400815
Title Code Development on Parallel Partitioned Fluid-Structure Interaction Simulations
Abstract Fluid-Structure Interaction (FSI) is a phenomenon that appears in a wide range of scientific and engineering disciplines at different scales. Due to the non-linear, time-dependent and multi-physical nature of various FSI problems, numerical simulation has a distinct advantage over other investigation methods. There are many in-house/commercial FSI solvers, but few of them can achieve both numerical robustness and high scalability. To develop an effective and robust method for FSI, we choose the partitioned approach to make good use of the existing open-source codes to allow good flexibility and to reduce the effort of maintenance of this framework. For a partitioned approach, a stable and accurate coupling algorithm with good scalability is required. Therefore, the Multi-scale Universal Interface (MUI) coupling library is employed as the interface coupling tool between fluid and structure domains. The MUI library shows good scalability and allows an arbitrary number of codes to communicate with one another over MPI via a cloud of point data. In the present study, the two solvers OpenFOAM and FEniCS are adopted as the computational fluid dynamics (CFD) and computational structure mechanics (CSM) solvers, respectively. Two explicit/implicit coupling utilities for the FSI coupling have been developed in the MUI library to achieve a tight and stable coupling. In order to show the performance of this approach, the simulation of a blunt trailing edge hydrofoil with vortex-shedding induced vibration will be presented. The NACA0009 deformable hydrofoil, operated at zero angle of attack, is modelled at different thick-based Reynolds numbers in the range of 3.8 x 10^4 - 7.1 x 10^4 to present the lock-in and the lock-off regimes of the vortex-induced vibration. A comparison between the numerical simulation and the experimental data is carried out. Detailed characteristics of the body oscillation and vortex shedding are also provided.
Organisation STFC , SCI-COMP , SCI-COMP-EE , HC
Funding Information BEIS, STFC - Laboratories (STFC - Laboratories)
Related Research Object(s):
Language English (EN)
Type Details URI(s) Local file(s) Year
Report 2020. Code_Development_…tion_Simulations.pdf 2020