The Numerical Solutions Solution Option tab in the Hydrodynamics Options form provides provides access to several of the numerical solutions schemes available in EFDC. The 2 Time Level and 3 Time Level solutions are primary. The standard case for Buoyancy Forcing is the Internal Pressure Gradient option. Other options can still be set in the EFDC.INP file if the user wants to make such a change but they should understand the options and ensure the sub-models selected are correct if they make a change.
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The 3 Time Level (3TL) or 2 Time Level (2TL) options allow the user to select the method to be used for numerical simulation. If using the EFDC_GVC model with GVC layering, the only Time Level solution available is the "3 Time Level".
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