This is a function object which can return the maximum and minimum length of a field reaching a criterion value. For example, you can use it to get the temporal evolution of the lift-off length, e.g., setting the fieldName as OH, criterion as a mass fraction of 0.001. You can also use it to get the vapor penetration length, e.g., setting the fieldName as Z, criterion as a Z = 0.001.
minMaxLength1
{
type minMaxLength;
libs ("libSJfieldFunctionObjects.so");
fields
(
Z
{
criterion 0.001;
threshold 0.0001;
}
OH
{
criterion 0.0001;//2% of 0.005
}
);
position ( 0 0 0 );
direction ( 0 0 1 );
}