Backward Compatibility to the 2020-10 Release
The following changes have been made to the default settings from build 2020-10-AF. Some of these have specific commands to revert behaviour, for others these can be reverted by setting defaults to pre 2023. These changes are summarised in Table 10.1 below. Changes specific to models with Sub-Grid Sampling (SGS) are summarised in Table 10.2 and changes specific to models with SGS and High Resolution Outputs in Table 10.3.
Table 10.1: Changes in Defaults
Description of Change
|
Section
|
Backward Compatibility Command
|
Change to quadtree handling of inertial parallel to boundary
|
Section 5.4
|
Quadtree BC Parallel Inertia Approach == Method A
|
Upper limiting Manning’s n in Wu turbulence calculation
|
Section 4.7.1
|
Viscosity Coefficient == \(\langle\)C3D, C2D, 99\(\rangle\)
|
Duplicate Materials IDs
|
Section 2.7.2
|
No specific command - Defaults == Pre 2023
|
Duplicate Soil IDs
|
Section 2.7.3
|
No specific command - Defaults == Pre 2023
|
Duplicate SA Boundaries
|
Section 5.7.2
|
No specific command - Defaults == Pre 2023
|
HPC Weir Approach
|
Section 4.2
|
HPC Weir Approach == Method A
|
HPC SX Momentum
|
Section 5.2
|
HPC SX Momentum Approach == Method A
|
HPC Boundary Approach
|
Section 5.6
|
HPC Boundary Approach == Method B
|
Initial Moisture and Green-Ampt infiltration
|
Section 2.3.9
|
No specific command - Defaults == Pre 2023
|
Table 10.2: Changes in Defaults - SGS Models
Description of Change
|
Section
|
Backward Compatibility Command
|
SGS Approach
|
Section 2.2.2
|
SGS Approach == Method B
|
SGS Depth Output
|
Section 2.2.1
|
SGS Depth Output == Exact
|
Mapping of partially wet SGS cells
|
Section 2.2.1
|
SGS Map Extent Full == h
|
Table 10.3: Changes in Defaults - High Resolution Outputs
Description of Change
|
Section
|
Backward Compatibility Command
|
High Resolution raster output interpolation method
|
Section 2.2.5
|
HR Interpolation Approach == Method A
|
High resolution thin breaklines
|
Section 2.2.6
|
HR Thin Z Line Output Adjustment == OFF
|
As always, it is recommended when switching to a new Build with an established model that test runs be carried out and comparisons made between the old and new Builds (subtracting the two maximum water level (h) data sets and reviewing any differences is an easy way to do this). If you have any queries on the comparison outcomes, require clarification or more detail on any of the points below, please email support@tuflow.com.
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