SUMMARY
This discussion centers on calculating pressure drag on objects without relying on Computational Fluid Dynamics (CFD) software. Participants highlight that while analytical solutions exist for simple shapes like cylinders, complex objects require CFD for accurate drag calculations. The conversation also touches on DIY wind and water tunnels, suggesting that basic setups can be created using a vacuum cleaner and plexiglass for home experiments, although results may lack precision. Users express interest in free CFD programs, particularly for projects involving high-powered rockets.
PREREQUISITES
- Understanding of pressure drag and its dependence on object geometry
- Familiarity with basic fluid dynamics concepts
- Knowledge of DIY wind tunnel construction techniques
- Awareness of available CFD software options
NEXT STEPS
- Research free CFD software alternatives for drag calculations, such as OpenFOAM
- Explore analytical methods for calculating drag on simple geometries
- Learn about the construction and calibration of DIY wind tunnels
- Investigate the effects of ambient conditions on lift and drag
USEFUL FOR
Engineers, hobbyists, and students interested in fluid dynamics, DIY wind tunnel construction, and drag calculation methods for experimental projects.