Dynamic Initial Water Level

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Mark Cramman

• April 06, 2022 09:54

I thought this model may give me the answer but I cannot make it work for Initial WL - creating discrete events based on a defined distribution

I have a model with water levels, flows etc. but I need to read the initial water level from a TS with the initial water level being the water level at the time the model starts. Is there a way to call, and then extract the level at the start of the simulation to apply it as the init WL?

Also, is there a list of things we can call in a function, like Etime (elapsed time) etc/?

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  Rick Kossik

  • April 06, 2022 15:10

  What do you mean that you need to read the initial water level?  Into what?  Do you mean it is the initial value for a Reservoir or Pool?  And what do you mean by "is there a list of things we can call in a function"?  Any of the Run Properties can be referenced in an Expression: https://help.goldsim.com/#!Modules/5/understandingandreferencingrunproperties.htm

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  Mark Cramman

  • April 06, 2022 20:46

  Thanks for the reply. I have many years of data, and if I want to run the model for a specific 6 month period, for example, I want the initial water level in the pool unit to be taken from the time series of water level. Does that make it clearer?

  My question about things we can call, I mean specific commands that can be called, ie “ETime” or “DateTime”. A list of all of these commands would be useful. 

  The link you provided looks like it could have the info, but where do I find "run properties", this doesn't appear in the model tree ont he side of GoldSim. 

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  Mark Cramman

  • April 06, 2022 20:46

  Found run properties, I had to delete my results. 

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  Rick Kossik

  • April 06, 2022 21:35

  OK, the attached model does what you want.

  https://goldsim.sharefile.com/d-s2d46e7492aa040349469c636100f6a8c

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