18.7 2016-03 Release

Table 18.7 outlines the changes made to the default settings for the 2016-03 release and lists commands to revert the setting to those used by the prior major release group (2013-12). All default settings can be reverted to the prior release by using the command, “Defaults == Pre 2016”. For more information on changes, see the 2016-03 Release Notes.

Table 18.7: **Default Changes in the 2016-03 Release and Backward Compatibility to 2013-12**
Description of Change	2016-03 Release Notes	Backward Compatibility Command
New operational 1D structure defaults.	Section 4	Set Defaults == PRE 2016 if similar results are required to the 2013-12-AC release.
Primary upstream and downstream 1D channels now correctly take into account bed slope.	Section 6	Set Defaults == PRE 2016 if similar results are required to the 2013-12-AC release.
A new layered 2D FC calculation method has been implemented.	Section 8	Set Layered FLC Default Approach == CUMULATE or use Defaults == PRE 2016 if similar results are required to the 2013-12-AC release.
The SX Flow Distribution Cutoff Depth has been raised to 0.005m from 0.0m.	Section 11	Set Defaults == PRE 2016 or use SX Flow Distribution Cutoff Depth == 0.0 if similar results are required to the 2013-12-AC release.
The “End After Maximum == ” tolerance has been increased to 0.001m from 0.0m.	Section 21	Set Defaults == PRE 2016 if similar results are required to the 2013-12-AC release.
A new ERROR message has been added to cross-check the 1D timestep is a multiple of the timestep for all 2D domains.	Section 49	Set Defaults == PRE 2016 if similar results are required to the 2013-12-AC release.
WARNING 2460 has been escalated to an ERROR and stricter command line syntax rules have been introduced (“=” will now return an ERROR message if TUFLOW is expecting “==”)	Section 50	Set Defaults == PRE 2016 if similar results are required to the 2013-12-AC release.
The treatment of the eddy viscosity term in the GPU Solver has been enhanced in the 2016-03-AD build with slightly improved results in areas of rapidly changing velocity patterns.	Section 145	Set Defaults == PRE 2016 to achieve the same results as Build 2013-12-AC and prior.