[Zain]

any update on this topic since 2019?

[Zain]

Hi Nurlan

Does RAS allow applying rules on a 2D mesh? Were you able to control your gate operations referring to water levels in a particular cell? and if yes, how do you call-in particular cell number in the rules code?

Looking forward.

[Zain]

Noted Chris. Thankyou for your response.

[Zain]

Hi Brian. I am working on a project that requires modeling quite a few bridges in 2D. I believe I am also experiencing the same anomaly as you are.

The WSE is well below the low chord and its completely an open channel flow. There is an exagerrated drop in WSE (HW and TW) at the Bridge 2D Connection CL. For me, this exegerration becomes a little okay when the flows become large but for low flows, the profile is very weird. When I remove the bridge and run the 2D, the WSE does not has that drawdown (which is logically correct). I have modelled this bridge in 1D also and for that, I do not have that weird drop but inputting bridges in 2D behaves abnormally. After reading your post, i am also checking the Bald Eagle Creek example.

Are you able to figure out this bridge problem?

Thank you.

Nayyar

[Zain]

Hello Cameron

Got in touch with the Hec Ras guys. They told me that the complete sediment manual has already been provided with the version 5.0 and only the TOE EROSION part is missing and it will be uploaded soon on the website. Since, i am not modeling the erosion phenomena for the emabnkments, this pending pdf document wont going to help.

I have sent them the problem i am encountering and am waiting for their feedback. Meanwhile, i am posting the same problem on the forum in an independent thread. I would appreciate if you could have a look and give your opinion.

Regards

Nayyar

[Zain]

I think i kind of sorted it out.

Hello,

The issue was with the water balance

US INFLOW DS OUTFLOW Diversions (lateral)
7111 681 8350

Initial conditions were simulated that provided the channel with an initial volume. This volume is in addition to the Inflow we are supplying as an input hydrograph. This initial volume is written as START REACH VOLUME in the text file.

When the simulation terminates, there is still water inside the channel. This is called the FINAL REACH VOLUME. The difference between the two is the volume utilized by the lateral structures.

So (US INFLOW + ALREADY PERSENT VOL DIFFERENCE) – DS OUTFLOW – Diversions) should be equal to zero.

I hope my understanding is correct .

Regards
Nayyar

[Zain]

Hello

Well i encountered this problem today and in finding a solution on the interent, i came across your query.

I found a solution and thought of sharing it so that others could benefit from it.

In excel, paste this in the module:

Sub test()

Dim oServ As Object
Dim cProc As Variant
Dim oProc As Object

Set oServ = GetObject(“winmgmts:”)
Set cProc = oServ.ExecQuery(“Select * from Win32_Process”)

For Each oProc In cProc

‘Rename EXCEL.EXE in the line below with the process that you need to Terminate.
‘NOTE: It is ‘case sensitive

If oProc.Name = “ras.exe” Then
MsgBox “KILL” ‘ used to display a message for testing pur
errReturnCode = oProc.Terminate()
End If
Next

End Sub

This would simply kill the ras process. Delete the msgbox statement and it will become more spontaneous. By doing this, you dont have to end up your procedure and can continue working in the same subroutine .

Hope it helps.

Regards
Nayyar

[Author]

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