Fluid mechanics
How liquids and gases move and the forces they put on parts, from pipe flow and drag to the equations CFD solves.
- AerodynamicsAerodynamics is how air flows around a body and the forces it makes. Lift and drag, the speed regimes and a worked wing example.
- Drag coefficientThe drag coefficient says how much drag a shape makes for its size and speed. The formula, typical values for common shapes and a worked car example.
- Navier–Stokes equationsThe Navier–Stokes equations describe how a viscous fluid moves. What each term means, a worked pipe-flow example and how CFD solves them.
- Reynolds numberThe Reynolds number predicts whether a flow is laminar or turbulent. The formula, which length to use, thresholds for pipes and plates and a worked example.