These functions adjusts the time step to match a reaction process. The
adjustTimeStepToChemistry fucntion adjusts based on the chemistry
model's stored chemical time step, and adjustTimeStepToCombustion
adjusts to match bulk reaction time scales. The latter requires
specification of a Courant-like number, to control approximately how
much of the reaction is permitted to be completed in a single
time-step.
These functions allow the solver to temporally resolve chemical changes,
in order to better couple the reactions with the transport, or in order
improve the time-accuracy of post-processing.
Example usage by dictionary specification:
adjustTimeStepToChemistry1
{
type adjustTimeStepToChemistry;
libs ("libchemistryModel.so");
}
adjustTimeStepToCombustion1
{
type adjustTimeStepToCombustion;
libs ("libchemistryModel.so");
maxCo 0.1;
}
Example usage via the included packaged function:
#includeFunc adjustTimeStepToChemistry
#includeFunc adjustTimeStepToCombustion(maxCo=0.1)
