Properties🔗
- Second order
- Transient
- Bounded
- When using uniform time steps the scheme equates to:
Usage🔗
The scheme is specified using:
ddtSchemes
{
default CrankNicolson <coeff>
ddt(phi) CrankNicolson <coeff>;
}
The coefficient provides a blending between Euler and Crank-Nicolson schemes:
- 0: Euler
- 1: Crank-Nicolson
- A value of 0.9 is a good compromise between accuracy and robustness
Further information🔗
Source code
Reference
- Crank and Nicolson [11]