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confusing paragraph on Page 59 of the D-Water Quality User Manual

ZW
Zhanxian Wang, modified 1 Year ago.

confusing paragraph on Page 59 of the D-Water Quality User Manual

Padawan Posts: 35 Join Date: 4/11/12 Recent Posts
In the D-Water Quality User Manual Page 59 about using the hydrodynamic result (Delft3D), section 5.2:

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Method 1: the builtin coupling

The builtin coupling is the preferred mode of coupling Delft3D-FLOW to D-Water Quality.
With this mode the required input files with the grid layout and the hydrodynamic results are
written directly and therefore a separate coupling step is not needed anymore. There is one
drawback: you have to decide at the start of the hydrodynamic calculation how to aggregate in
time and space (both horizontally and vertically). The other method allows you to store the full
result of the hydrodynamic calculation in so-called communication files and do the coupling
afterwards.

This method can also be used for ’classic’ domain decomposition Delft3D-FLOW calculations
with multiple grids, and for automatic parallel calculations of Delft3D-FLOW.


The builtin coupling is enabled in Delft3D-FLOW via the user-interface using the Export WAQ
input checkbox and the Edit WAQ input button.

This method can also be used for ’classic’ domain decomposition Delft3D-FLOW calculations
with multiple grids, but doesn’t work for automatic parallel calculations of Delft3D-FLOW.
The
output should encompass a representative period with a sufficient time resolution. Examples
of a representative period are a single tide and a spring-neap cycle.
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The statements are self-contradicting each other.

Jonathan
delwaq - water quality
AM
Arjen Markus, modified 1 Year ago.

RE: confusing paragraph on Page 59 of the D-Water Quality User Manual

Jedi Knight Posts: 235 Join Date: 1/26/11 Recent Posts
You are absolutely right - we will correct it, but the problem now is: which is the right text?
AM
Arjen Markus, modified 1 Year ago.

RE: confusing paragraph on Page 59 of the D-Water Quality User Manual

Jedi Knight Posts: 235 Join Date: 1/26/11 Recent Posts
I know now why this negative remark was introduced: when this automatic domain decomposition was first introduced, the corresponding ddb files were not produced along with it. That made it very hard to reconstruct the original grid as necessary for DELWAQ.

I can now correct the text.