- changed title to Lag calculation in channel routing
- edited description
Lag calculation in channel routing
Hi, I made a MODSIM model to confirm the lag calculation in MODSIM. Please see the attached model. In the model, the lagged flow should be returned to a node in a separate link. I found that Lag-0 flow is not returned to the designated return node. I am not sure this is an error or it properly calculated as designed. I am glad if you see it give us comments. I think this is not critical issue if this is an error, but I just want to confirm it what is happened in iterations. Thanks.
Comments (6)
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Account Deleted reporter -
Hi Sohei,
Just letting you know I'm not ignoring this issue. I've been busy at work. I looked into it this weekend and it is not as straight forward as I was hoping. I think I'm close to a resolution but may need some extra time to ensure I have things right.
Thanks once again for a great example network to debug with.
Bob
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I tested this issue in version 8.5.1 and the lagging logic seems to be working as expected. When reviewing the results with 8.5.1 please consider that the lag 0 portion of the routed flow is not flown to the return location, i.e., the 25 percent that is entered in the lag 0 is left in the stream in the solver solution, so the result should show flow in the link 3-NS in the same time step the flow reaches the routing link (and it does).
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- changed status to resolved
The routing logic seems to work as expected in version 8.5.1
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