Prerequisites
- You should be familiar with LS-DYNA®.
- CFD knowledge is appreciated but not required.
Syllabus
This class provides an introduction to the ICFD solver in LS-DYNA. The ICFD solver can be run alone for pure CFD applications (the study of drag/lift around bluff bodies and vehicles for example) or be coupled to the thermal and structural mechanical problems for linear and non-linear complex FSI and conjugate heat transfer applications. It also makes use of an automatic mesh generator for the fluid volume, thus greatly reducing the cost of setting up the model. Key concepts as well as the philosophy behind the solver will be discussed in the first part of this class before moving to practice examples and keywords in the second part.
Content
- Features and applications
- Background
- Characteristics
- Applications
- Principles of fluid mechanics and CFD
- Main concepts of fluid mechanics
- Main concepts of CFD
- General CFD
- Main keywords
- Mesh control tools
- Free surface problems (dam breaks and wave generation)
- Thermal flows
- User defined meshes
- Steady state solver
- Post treatment tools
- Multiphysics and coupling
- Weak and strong FSI coupling
- Handling dynamic remeshing
- Linear coupling with structure
- Thermal coupling
- DEM coupling
- Advanced CFD
- Non-Newtonian materials
- Porous media flows
- Turbulence models and boundary layer meshes
- Non-inertial reference frame
- Periodic and sliding mesh boundary conditions