TELEMAC-MASCARET Forum: Culvert not working (1/1)

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TOPIC: Culvert not working

Culvert not working 9 years 8 months ago #16301

MiWe

Hello,

I have 4 culverts in my model. In the results I cannot verify that they're working and i don't know why. I looked up the syphon example and checked my input, but without success.

Maybe somebody can look up my cas and culvert file and say what I've made wrong.

Relaxation Number of siphons
     0.2          4
I1 I2  d1  d2 CE1 CE2 CS1 CS2  S12   L12  z1  z2  a1  a2
156968 245754 0.0 0.0 0.5 0.5 1.0 1.0 3.64  0.89 0.0 0.0 0.0 0.0
187627 188074 0.0 0.0 0.5 0.5 1.0 1.0 0.28 0.234 0.0 0.0 0.0 0.0
187777 188206 0.0 0.0 0.5 0.5 1.0 1.0 0.28 0.234 0.0 0.0 0.0 0.0
187862 188241 0.0 0.0 0.5 0.5 1.0 1.0 0.28 0.234 0.0 0.0 0.0 0.0

Thanks and regards

Mirko

Attachments:

Weischlitz.cas (3KB)

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Culvert not working 9 years 8 months ago #16302

MiWe	I will try the tube parametrization to check whats wrong, can somebody tell me if z1 and z2 (level of the tubes) are the centerpoint, top or bottom of the tubes? regards Mirko
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Culvert not working 9 years 8 months ago #16309

Lux
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Posts: 96
Thank you received: 39

Hi MiWe,
The keyword NUMBER OF CULVERTS is missing in your cas file.
(Your friction coeffient (defined as a Stricker) seems very rough)

z1 and z2 correspond to the bottom elevation of your nodes. It is safier to take a slightly higher (some centimeters above for example) value than the real bottom to avoid problems if a side is dry.

If the culverts are implemented, the computed discharges are regularly printed in the listing.

Regards,
Luc

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The following user(s) said Thank You: MiWe