Time schemes

Time schemes define how a property is integrated as a function of time, i.e.

\[ \ddt{\phi} \]

Depending on the choice of scheme, field values at previous time steps are required, represented in the following as \( \old{\phi} \) and \( \oldold{\phi} \) for the old and old-old time levels.


Time scheme properties are input in the fvSchemes file under the ddtSchemes sub-dictionary using the syntax:

default none;
ddt(Q) <time scheme>;


Available time schemes include


See this example to see the relative performance of the schemes.

Further information

Source code:

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