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[waves2Foam] Relaxation zones: is it possible to do some kind of nesting? |
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January 4, 2016, 19:36 |
Relaxation zones: is it possible to do some kind of nesting?
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#1 |
Member
Zhifang Hu
Join Date: Sep 2015
Location: Brisbane
Posts: 54
Rep Power: 11 |
Hi there
Happy new year. I am not sure if its the right place to ask the question. My question is that is possible to do some kind of nesting using wave2foam? For instance, I am doing a relative large simulation with quite complex geometry. What i am thinking is breaking down the simulation into different parts. Hence, i need the wave output (velocity, wave height etc) from the previous parts being the input for the next part. Is there anyway to achieve such a thought using wave2foam? Many Thanks Last edited by wyldckat; August 25, 2018 at 11:42. Reason: Moderator note: I had to create a title that seemed to match topic on the first 2 posts |
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January 19, 2016, 18:06 |
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#2 |
Member
Zhifang Hu
Join Date: Sep 2015
Location: Brisbane
Posts: 54
Rep Power: 11 |
Hi Foamers
I am wondering where is the wave maker in wave2Foam. cz according to the waveinput file, i just saw two relaxation zone defined, the inlet and outlet. Based on what i observed from the wave flume tutorial case, the outlet relaxation zone seems acting as a sponger layer, it observed the incoming wave, however i am not quite sure about the inlet relaxation zone does. Is it a wave generator or sth else? Many Thanks |
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January 24, 2016, 08:42 |
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#3 |
Member
Stefan
Join Date: Jan 2010
Location: Kiel, Germany
Posts: 81
Rep Power: 16 |
@ce73stargazer
In the relaxation zone your fluid properties are altered according to wave theories. You need to choose one that you want to apply. Look at the wiki and one of the first papers by Niels. |
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February 1, 2016, 20:53 |
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#4 |
Member
Zhifang Hu
Join Date: Sep 2015
Location: Brisbane
Posts: 54
Rep Power: 11 |
Hi there
I did a simulation based on a modified waveflume case. I change the waveflume geometry into 310 m depth, with water depth 300 m and 10 m up to the air. The wave i inputed has a waveheight 5 m and period 10 s. However the results i get does not look good to me. (shown in the attachment) I have few concerns about the results. 1. the water level elevation doesnt look that good, there is a weird behaviour when the wave goes from crest to trough. 2.The blue line is the model results, and the red dot line is the linear wave theory, the dynamic pressure for the model surely drops much slower compared with the linear wave theory. 3. I used the waveGauage function to get the water elevation, i am not sure how it outputs the water level elevation, for instance, in VOF method, when it defines if the point is water or air, like alpha bigger than some threshold? Many Thanks if anyone knows why. |
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