****************************** Minimum Resolved Time Step ****************************** :: Minimum Resolved Time Step = ----------------------- Description / Usage ----------------------- Its role is to set a lower bound for the time step with respect to the **Time step error** tolerance. When a converged time step is obtained by GOMA, the difference between the predicted solution and final solution for that time step is compared to the **Time step error** tolerance. If the difference exceeds this tolerance the step fails and the time step is cut (usually by a factor of 2), UNLESS the time step falls below the **Minimum Resolved Time Step** size. In this case the step is accepted, even if this error tolerance is not achieved. This provides a mechanism for the modeler to control what phenomena is resolved and what phenomena is ignored. Any floating point number in the same units as specified in the *delta_t* card. ------------ Examples ------------ A sample card that sets the maximum time step to 10.0 follows: :: Maximum Resolved Time Step = 10.0 ------------------------- Technical Discussion ------------------------- See GT-034 for a thorough discussion. -------------- References -------------- GT-034: Tutorial on time step parameter selection for level-set problems in GOMA. April 1, 2006. D. R. Noble