Courant–Friedrichs–Lewy (CFL) condition
Condición de Courant-Friedrichs-Lewy (CFL)
- Date
- 1928 · confidence high
- Place
- Göttingen, Germany
- Credited to
- Richard Courant, Kurt Friedrichs and Hans Lewy
- Field
- Knowledge & symbols
What was discovered
The Courant–Friedrichs–Lewy (CFL) condition is a necessary condition for the convergence of certain numerical methods for solving partial differential equations, typically hyperbolic ones: it requires the time step to be smaller than a bound related to the spatial step. It was described by Richard Courant, Kurt Friedrichs and Hans Lewy in a 1928 paper.
What it led to
- Standard stability criterion in numerical simulation of fluids and waves
- Use in numerical weather prediction and computational fluid dynamics
- Basis for designing explicit time-integration schemes