• Re: MIKE11 user defined function for structure

    Hello Ella,
    There are a couple of options for doing this. The easiest is to utilize the controle structure using a discharge gate with the operation described through a table.

    Regards
    Johan Hartnack


  • Re: License Server error

    FEFLOW and MIKE 21 2014 do not share the same license system. Thus you need to install the license server for the MIKE 21 as well. If you have boith installed you may want to look into firewall settings and ports. There are quite a few hints in the DHI network license user guide to help you with such an issue. 

    If you are still experiencing trouble please consult MIKE client care at mike@dhigroup.com
  • Re: Hardware method to reduce the computation time

    An SSD option could speed up the computation. Though note that this only is if your simulation is IO intensive i.e. do you write results very frequently e.g. at every time step?

    GPU is not used with a MIKE 11 computation. You may utilize GPU if you switch to MIKE 21 FM.

    The way you describe your set-up you have one streatch of river with no confluences. Such a set-up is numerically solved through a double sweep algorithm which is very well suited for single thread calculations.

    You could consider the various time steps i.e. the WQ time step, the HD time step and the AD time step. Time step may be limited by the WQ equations due to the ODEs being solved
  • Re: User defined dam breach parameters

    Dear Arham Mansoor,

    There are two main options for defining the dambreak.

    1) user defined geometry: The breach of the dam is defined through a timeseries defining the breach development
    2) erosion based: The breach development is based on erosion calculted through a sediment transport formula.

    For the former you typically need to consider historical data with regards to the developoment of a breach in a similar dam. For the erosion based approach you need to have some insight into the dams composition to set the grain dimater, porosity etc.

    Regards
    Johan

  • Re: max dpeth

    I believe the training material you are refering to will discuss the stability criteria from the point of an explicit numerical scheme. Please note that MIKE 11 uses an implicit scheme and thus the stability analysis (based on the linearised equations) will result in an unconditionally stable scheme though note that the non-linear are not taken into account and in practice you will be looking at a Courant number in the range you mention. I hope this clears up the confussion

    Good luck