Introduction to OpenFOAM

A tutorial on how to use dynamic mesh solver IcoDyMFoam

Performed by: Pirooz MoradniaSpring 2008, Göteborg-Sweden

Table of Contents

- Basics of IcoDyMFoam- Mesh manipulation approaches- Mesh manipulation models- Point motion solvers- Diffusivity models- A few examples

Basics of IcoDyMFoam

- Transient solver- Incompressible-Laminar flow- Newtonian fluids- Moving mesh

Mesh manipulation approaches

- Fixed mesh topology; i.e. spacing between the nodes changes (Automatic approach in IcoDyMFoam)

- Variable mesh topology; with help of:- boundary attachment or detachment- Layer addition or removal-Sliding interfaces

Mesh manipulation models

- dynamicFvMesh library models- staticFvMesh (no change in mesh)- dynamicMotionSolverFvMesh (solving for the cell motion equations)- dynamicInkJetFvMesh (harmonic mesh motion)

- topoChangerFvMesh library models- linearValveFvMesh (sliding interface)- linearValveLayersFvMesh (sliding interface with layer addition and removal)- mixerFvMesh (sliding interface in cylindrical coordinates)- movingConeTopoFvMesh (layer addition and removal)

Point motion solvers

- displacementLaplacian- solving for the laplacian of the diffusivity and cell displacement

- velocityLaplacian- solving for the laplacian of the diffusivity and cell velocity

- SBRStress- a displacement solver, taking care of Solid Body Rotation

Diffusivity models

- quality-based methods- uniform- directional- motion directional- inverseDistance

- distance-based methods- linear- quadratic- exponential

A few examples

Thank You!