OasisMove – A verified and validated FEniCS-based computational fluid dynamics solver for moving domains

OasisMove is a high-level/high-performance open-source Navier-Stokes solver written in Python/FEniCS, and is an extension of the computational fluid dynamics (CFD) solver Oasis. In OasisMove the Navier-Stokes equations are expressed in the arbitrary Lagrangian-Eulerian (ALE) formulation, which is suitable for handling moving domains. Through verification the solver has shown to follow theoretical convergence rates, begin second order accurate in time, and second and third order accurate in space with \(\mathbb{P_1}/\mathbb{P_1}\) and \(\mathbb{P_2}/\mathbb{P_1}\) finite elements. Through validation the solver has showed good agreement with existing benchmark results, and demonstrates the ability of the solver to capture vortex patterns in transitional and turbulent-like flow regimes.

Contents

Installation

• Installation
• Installing with conda
• Installing with Docker

Using OasisMove

• Getting started
• Hooks
• Parameters
• Features and issues

Tutorials

• Tutorials
• Wall-driven channel flow
• Oscillating cylinder in free stream
• Vortex problem with oscillating boundaries
• Moving 3D Taylor-Green vortex

Additional features

• Restarting a simulation
• Interpolating to a higher function space
• Backflow stabilization

Python API

• API Reference