Level Set Timestep Control

Level Set Timestep Control = <YES | NO>

Description / Usage

On this card, the user specifies a single char_string.

<YES | ON>

This string turns on level set timestep control if it is “yes” or “on”.

Examples

A typical length scale input card looks like:

Level Set Timestep Control = yes

Technical Discussion

In normal operations, the error norm of the level set function is not included in controlling the size of the time step decided upon by the variable timestep size integrator. Inclusion of this card will add the level set unknown to the list of update error norms used to decide the time step size. In other words, use this card when you want the changes of the level set function to affect the timestep size. If this card is not used, the default behavior is to ignore the level set degrees of freedom in controlling the timestep size.