SimFlow CFD Introduction

In this introductory training presentation, you will learn how to use SimFlow - CFD Software to set up and run CFD simulations. This presentation will provide a general overview of the software and explain its basic functions. You will learn how to navigate the SimFlow interface, create and import geometries, generate meshes, define boundary conditions, set up simulations, and visualize results in ParaView. The presentation will cover the most important features of SimFlow, including its ability to simulate steady-state and transient flows, multiphase flows, and conjugate heat transfer. By the end of the training, you will have a solid understanding of how to use SimFlow to solve real-world fluid flow problems.

Transcript

1. SimFlow introductory training
2. Launcher
3. Tabs Main Window Overview Panel tree Active Panel Console 3D Panel Toolbar
4. Geometry primitives Box Cylinder Sphere Import STL file
5. Mesh Import
6. Meshing Philosophy Define base domain mesh Cut cells from base mesh with geometry Snap nodes to match geometry boundaries Add boundary layer to the mesh
7. Mesh Tools Transform Check Quality Refine Mesh Renumber Refine Boundary Create Boundary Coupling Split/Merge Boundary Convert to Polyhedra Convert to Polyhedra Create sub-region solid/fluid separate domain
8. Solvers Solver an OpenFOAM concept - application with predefined set of models dedicated to solving specific problems.
9. Solver Filters Compressibility Time Models
10. Turbulence Solve turbulence equations Solve turbulence equations Turbulence approach Turbulence model
11. Transport Properties Transport Model Chose how material should be modeled. Properties Solver specific inputs, which affects your simulation
12. Discretization & Solution
13. Operating conditions • Specify referencing values (eg. pressure for incompressible flow) • Gravity acceleration (in presence of the buoyancy force)
14. Boundary Conditions 1. Select mesh boundary 2. Chose boundary condition character (Boundary Conditions predefined set) 3. Set appropriate Boundary Condition and values for each variable 1 2 3
15. Initial Conditions - basic Initial value for entire domain
16. Initial Conditions - advanced Start with potential flow field Value in a region Initialization from other solution
17. Controls When solution files should be written How solution files should be written Chose the policy for application what to do with old results Enable automatic time step selection for reducing simulation time
18. Dynamic Mesh Dynamic mesh type Rigid body properties for moving boundary Movement constraints for rigid body
19. Post Calculations Calculate secondary flow fields: mach number, vorticity, etc. Calculate wall values: y+, wall heat flux. Calculate integrals and averages of fields on boundaries.
20. Postprocessing Postprocess with ParaView Export results • Fluent • Ensight • FieldView • Tecplot • VTK
21. Postprocessing with ParaView
22. ParaView - Tools Clip data Section plane Add vectors Add streamline Plot variable Compute custom field
23. ParaView - Pipeline Data Processing hierarchy