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-   -   Stepped Spillway (http://www.cfd-online.com/Forums/flow-3d/72315-stepped-spillway.html)

mohammad.sarfaraz February 2, 2010 07:41

Stepped Spillway
 
Hi
I want to model a stepped spillway in FLOW-3D.
Has any one done this before? or
does any one have a thesis about this?

MuxaB February 2, 2010 10:25

It was done at the Hydrology Institute in St Petersburg, Russia, http://www.eng.rushydro.ru/, and presented at a seminar last June. Don't have a reference for the materials themselves, sorry

Ghirghidov February 2, 2010 13:05

Hi there. I did that. What do you want to know? I am going to make another simulation in couple days.
BTW. Mike I believe I left that materials somewhere in Internet. I could look through where they are or leave them again.

Regards, Armen.

mohammad.sarfaraz February 4, 2010 02:08

Hi
I was wondering if you could possibly send me the "STL" files and report (containing boundary conditions,...)

Ghirghidov February 4, 2010 04:47

Hi there. Sorry I can't That's copyrighted spillway and it is not published yet. I just can send you my preliminary simulation. The spillway has simple steps 5x5m. Boundary were very simple, just use water heights at right and left BC.

fth November 17, 2010 19:14

hi
i recently saw your messege, i like to know if you could model a stepped spillway in flow 3d and if yes i would be grateful if you could direct me in this regard.
thanks

Ghirghidov November 18, 2010 05:29

Dear fth.

I used spillway with 5x5m steps. There is about 40 steps. so if you need just simulate spillway you will need about 5 cells per step but if you need more information (k and у parameters etc.) you will need about 15 ceels per step. For example I calculated that spillway about 20 days with 5 cells per step on Core 2 Duo. The same spillway with 15 cells is simulating about 30 days on Core-i7 (it's about 4-5 times faster) and it's quite far from the end. :-( Many things depends on you computer.
About BC I wrote above.

Regards, Ghirghidov

mohammad.sarfaraz November 18, 2010 08:56

Stepped Spillway
 
Hi there

As I read Ghirghidov's message, I think that a stepped spillway with the 5m height of the steps, is not a real case!
The maximum height of steps that has been constraucted is 1.2m.

I have modeled a stepped spillway which the height of the steps is 1.2 m, the slope fo the spillway is 1.2V:1.0H and the height of the spillway is 82.0m, both physical and numerical. The numerical modelling was done by FLOW-3D. After all the numerical results agree very well with the physical modelling results.

Ghirghidov November 18, 2010 09:25

Dear Mohammad Sarfaraz.

I'm sorry I was not right. there are steps 1.5x1.5 etc. Actually that spillway contains steps with different configurations - several 0.5x0.5 one about 5 (or 6) and others 1.5x1.5.

Regards, Ghirghidov.

Davahue November 18, 2010 11:15

Tech paper
 
Quote:

Originally Posted by mohammad.sarfaraz (Post 244576)
Hi
I want to model a stepped spillway in FLOW-3D.
Has any one done this before? or
does any one have a thesis about this?

I found this time ago
I hope it helps,

http://www.flow3d.com/pdfs/tp/wat_en...i-Bib33-10.pdf

matilda June 12, 2011 14:31

Quote:

Originally Posted by Ghirghidov (Post 244647)
Hi there. I did that. What do you want to know? I am going to make another simulation in couple days.
BTW. Mike I believe I left that materials somewhere in Internet. I could look through where they are or leave them again.

Regards, Armen.

Hi. Mr. Armen
would you please send me your perpin file to khow how i set the condtions? i want to khow what the mistake is that the simulation doesn't do well (the water jumpe over the steps actually in my simulations)

thanks
A. Dolatshah

Ghirghidov June 14, 2011 06:14

Dear Azam Dolatshah,

send you to where?

Regards.

matilda June 15, 2011 07:13

Quote:

Originally Posted by Ghirghidov (Post 311944)
Dear Azam Dolatshah,

send you to where?

Regards.




Hi Dear Armen
please send it to this e-mail adress : matilda_wkb@yahoo.com or matilda.wkb@gmail.com

i'm very glad for your kindness,
thank you very very much...

best regards

mohammad.sarfaraz July 6, 2011 01:32

Article
 
I have found this article useful, modeling stepped spillway with FLOW-3D.

https://rapidshare.com/files/2753917293/Sarfaraz.pdf

a.pourali July 6, 2013 10:51

input file
 
Quote:

Originally Posted by mohammad.sarfaraz (Post 314864)
I have found this article useful, modeling stepped spillway with FLOW-3D.

https://rapidshare.com/files/2753917293/Sarfaraz.pdf

hi can you help me with sending the geometry and input file of stepped spillway simulation.
this file is available in flow-3d user's site but i can't access that for log in password problem


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