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  • Re: Selection of cross-section - keys combination

    Hi Mar,
    you can select the cross-sections by double clicking them one by one, but you can't e.g. use the Shift key to select a number of sections in one go.

    If the cross-sections you want to select are all on a specific branch, you can also right-click on the branch name, and select at the same time all the cross-sections from this branch.

    Best regards,
    Mathieu
  • Re: Importing Bathymetry Data into MIKE2012

    Hi,

    a common mistake is that you may have converted the XYZ to another coordinate system. The results will be that points won't be displayed at the expected location. So you should try to import again the XYZ file, and while browsing and selecting the XYZ, pay attention to the corrdinate system specified at the bottom of the browsing window (in the field 'Convert from'), and make sure that the specified system is the actual coordinate system in which the XYZ data are provided.

    You can also check that your XYZ file has an appropriate format, by comparing with available example data, for example those installed in :
    C:\Program Files (x86)\DHI\2014\MIKE Zero\Examples\MIKE_ZERO\BatEdit

    Hope this may help.

    Best regards,
    Mathieu
  • Re: Mike11 Network from shape file

    Hi,

    This is probably because you haven't loaded any shape file.

    You first need to load your shape file from the menu Layers \ Add/Remove. This has to be done prior to the conversion.

    Best regards,
    Mathieu
  • Re: dfsu file for wind forcing velocity components in mike 21 sw

    Hi Sarah,
    Have you tried changing the item type to either 'Wind speed' or 'Wind velocity'? When selecting the input file, you can check the possible item types in the tab 'Constraints info'.

    Note that you can also check out the example installed in the folder C:\Program Files (x86)\DHI\2014\MIKE Zero\Examples\MIKE_21\SW\NorthSea

    Best regards,
    Mathieu
  • Re: Link channels

    Hi,
    The descriptions you get using a link channel and a (weir) side structure are both approximations of the real world. They both provide the same, i.e. they represent the transversal spilling over the banks using a weir equation. With both options, you can define a storage area in the floodplain, downstream the weir. A difference is that the link channel can be connected downstream to another branch (for example another branch describing the floodplain), but the side structure cannot.

    If you have to model a long bank, you may need to use multiple weirs (side structures or link channels) to describe the overspilling, instead of a single one. Using muliple weirs will be more accurate, because each weir will compute the spilling using a local water level in the river bed. On the opposite, if you use a single weir, the spilling will be computed using only 1 water level value, whereas in the real world the water level is usually not constant along the bank.

    Best regards,
    Mathieu
  • Re: Link channels

    Hi Mar,

    it's correct that the US level describes the bank's elevation, whereas the DS level describes the floodplain topography.
    The cross-section geometry represents a longitudinal profile of the bank, which will be used as a weir between the main stream and the floodplain.

    Best regards,
    Mathieu
  • Re: Mike 11 Tutorial

    Hi,

    All available manuals related to MIKE 11 are installed with the software: per default the manuals are located in the folder C:\Program Files (x86)\DHI\2014\MIKE Zero\Manuals\MIKE_11

    The Tutorial is designed to give a quick overview of the software, but if you want more information you should look at the User Manual, which will give many more details for each menu or dialog.
    If you want to have a look at an example, to see how a specific feature is used, you can also check the installed examples (per default installed in C:\Program Files (x86)\DHI\2014\MIKE Zero\Examples\MIKE_11)

    If you are more interested in the way the equations are solved, then you should look at the reference manual (Mike_11_ref.pdf) instead.

    The other pdf you refer to is a training manual, which is therefore distributed to participants of training sessions. So I don't think you can get it from this forum, though. However this manual is relevant as part of a training course, since it will provide training data and also be the base for a discussion with a trainer. Using this manual alone, without the associated course, wouldn't give you much more information than what you can get from the installed manuals, because it doesn't provide neither e.g. a full description of all available menus!

    I hope this information can help you anyway. If you have a specific question about MIKE11, you can of course post it here!

    Best regards,
    Mathieu
  • Re: *.dfs2 with 3 item

    Hi Yasinabd,

    You can simply create a new file with the type "Grid series (.dfs3, .dfs2)". You will be prompted for the number of items to be included in this new file.

    Alternatively, you can start from an existing file, open it and go to Edit \ Items menu: from here you can also add and edit the items contained in the file.

    Best regards,
    Mathieu
  • Re: Levee+Iteration+Interpolated cross section

    Hi,

    Regarding case 1 : the way you proceeded seems to be correct.
    For question 1: there is no numerical limit for the length of link channel
    Q2: I'm not sure what you refer to when you mention the link channel geometry. If you refer to the bank / spilling elevation: this is specified in the 'Cross section geometry' options, and describes the geometry of a weir describing the bank.
    Q3: Yes you should define multiple link channels: that will allow for a better description of the spilling level along the river branch, and will also allow taking into account the water level changes along the river. You could use MIKE FLOOD instead, which will be usually better because it may use a fully 2D approach for the floodplain. Using MIKE FLOOD is also sometimes even easier than setting up a high number of link channels.
    Q4: when applying a storage on a link channel: you have to add a cross-section at the location of the storage (upstream or downstream end of the link channel) and define the Level / Storage area in the processed data of this cross-section (by use of teh Additional Storage Area column). If you use the link channel to model the spilling over a single location, into a reservoir, it may be easier to use a side structure (weir type) with reservoir, which is easier to set up.

    Case 2: using a side structure or a link channel is basically the same, except that when using a weir you can select which weir formula you want to use. And when using a side structure weir, the Plot button can only display the upstream and downstream cross-sections, even for a side structure!
    The end chainage for a side struture will allows use a default value, so it's not based on the geometry.

    Best regards,
    Mathieu