Is there a minimum grid element size?
A. No, but we recommend that you balance the grid element size with the inflow discharge flux. For practical purposes, grid elements less than 10 ft are not recommended. Most flood simulations will have sufficient resolution with 50 ft or 100 ft elements. For large flood events inundating large areas, 250 ft elements or larger are suggested. See the Hints_and_Guidelines.doc available at the website for detail information regarding the grid element size.
