Mathieu Hellegouarch

Hi Tija,

You simply need to update your installation. You can download the hotfix named "MIKE ZERO Hotfix 13-01-2014" from the following page:
http://www.mikebydhi.com/download/hotfixes/hotfixes.aspx

Best regards,
Mathieu

Dear all,

Alternatively the flushing frequency can be set to a bigger value than 1, in order not to slow down the simulation :)

Remember that, when editing the mike11.ini file, the section which needs to be edited is not the first one, which simply provides a description of the feature, but the second part of the file. Hence, for the flushing option, the section to be edited is:
;HD-Variable no. 64
  File_Flush_Freq = 0


Best regards,
Mathieu

Hi Daniel,

good to read that you succeeded.
Note that there is also an option in MIKE11 to directly export some results in a *.dfs0 or a text file: when exporting to a text file it is possible to save maximum values, and not only instantaneous values.

These options are available in the "Time series output" tab, in the *.hd11 file.

So depending on the results you want to save, this may also help you.

Best regards,
Mathieu

Hi Daniel,

Have you tried running the res11read.exe program with the option "-someres"? This option allows you to extract the results into a single output file, for a number of selected calculation points and items. This selection has to be made in a text file, similar to the one attached, in which you specify for each output: the item name, the branch name and the chainage, so you can actually export results from different items and at different locations.

Best regards,
Mathieu

Hi,

This limitation highly depends on your hardware.

The best way to save memory is to disable the display of scatter data: to achieve this, simply untick the "Display" option for each data file, in the Data \ Manage Scatter Data menu.
Please note that if you only deactivate the option "View Scatter Data" in the Data menu, it won't save memory.

Changing this usually helps. If it's not sufficient, you can however go to Edit \ Options, and reduce significantly (e.g. to a few units) the number of undo/redo levels: the Mesh Generator keeps in memory as many mesh versions as specified here, so reducing this value also saves memory.

Best regards,
Mathieu

Hi Sumit,

To apply a varying water level as downstream boundary condition, you need to:
1: create a time series containing the water level data. Simply create a new time series file, and then paste your data into this file.
2: in MIKE 11, open the boundary file, and add a boundary condition at the downstream end of your model, where you want to apply the water level data. Select the boundary type "Water level", and in the lower table, select your time series.

Hope this will help.

Regards,
Mathieu

Hi,

the easiest way to check the reservoir's volume is to save the water volume in the result file.
This is done in the HD11 file, by ticking the item "Volume" in the "Add. Output" tab.

After doing this, MIKE 11 will store this item in the additional result file. You will hence get access to the instantaneous water volume in each calculation point. So you can easily check, for a given water level, the volume in your reservoir. Keep in mind that, if you have several calculation points to describe the reservoir, you then have to sum the volumes from these points.

Mathieu

Hi kin.gyo,

You can create a *.dfs2 file from a *.dfsu file by creating a new "Grid series (.dfs3, .dfs2)" file. When creating this file, you can then select "from Dfsu file": this will allow you to convert your dfsu file into a dfs2 file. You can then convert this dfs2 file to ASCII by use of the following toolobox: MIKE Zero Toolbox \ GIS \ Mike2grd.

If you want to export only a part of the whole domain from your dfsu file: you can either crop the generated dfs2 file (in Tools \ Crop) or crop the dfsu file using the Data Extraction FM tool (New \ File \ Data Extraction FM).

I guess this answers your questions.

Mathieu

Hi,

I looked at your model, and I could see that you actually do have some issues with your structures' geometry: at least for one of them, the bottom level is lower than the thalweg of the upstream cross-section. So you should edit these structures in order to improve your model.

I've also seen that you have cross-sections really close to each others (grid step of approx. 1m): in such cases, you should consider reducing the time step. In some cases, a time step smaller than 1s may be required.

Please also remember that the Delta parameter (HD11 file \ Default values tab) can be slightly increased : it often significantly improves stability on structures.

Regards,
Mathieu