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[waves2Foam] Combined Wave = Stokes + current |
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December 10, 2018, 09:30 |
Combined Wave = Stokes + current
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#1 |
Member
Paul Palladium
Join Date: Jan 2016
Posts: 93
Rep Power: 10 |
Dear Foamer,
I am a bit surprised that there is no easy possibility to add a stokes waves and a current. After reading all the previous posts I tried to use a combination of waves : a Stokes wave and a potential current. There are some problems : - a : The wave number calculated by setWaveParameters do not take into account the current velocity. As advised by Niels I tried to recalculate the wave number using the theory (for example using the formula given here : http://www.coastalwiki.org/wiki/Shal...nt_Interaction. For first order wave theory it's kind of easy but it become harder for 5th order waves. As far as I understand only 5 order wave conserve the shape when travelling and because I am interested in seakeeping analysis I would like to used this kind of wave. - b : If you use a combination of potential current and stokes wave there are some problems when the wave leave the inlet relaxation zone (see picture attached for the waveFlum tutorial). So currently I don't use a inlet relaxation zone. Are there some solutions to use efficiency wave + current in the waves2foam tool box ? Thanks in advance, Paul |
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December 11, 2018, 04:38 |
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#2 |
Senior Member
Hrvoje Jasak
Join Date: Mar 2009
Location: London, England
Posts: 1,905
Rep Power: 33 |
Hi Paul,
Why don't you try stream function waves instead? Hrv
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Hrvoje Jasak Providing commercial FOAM/OpenFOAM and CFD Consulting: http://wikki.co.uk |
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December 11, 2018, 14:00 |
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#3 |
Member
Paul Palladium
Join Date: Jan 2016
Posts: 93
Rep Power: 10 |
Dear Hrvoje Jasak,
Thanks for your help. Because I am not very used to waves modeling I didn't know the existence of stream function waves. After (re)reading the waves2foam manual I manage to set up the waveProperties.input dictionary correctly and got a result. Now I need to go to the source paper to understand properly this kind of waves. If Niels Gjøl Jacobsen (thank for this wonderful package) takes a look at this post it seems that the Tsoft keyword required for stream waves function is not written in the code Fragment 4.7 of the user manual. I wish you a good day. Paul |
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January 14, 2019, 03:27 |
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#4 |
New Member
XIANGYU SHI
Join Date: Nov 2017
Posts: 7
Rep Power: 8 |
i am using v1712 and i have the same question i tried to change"U" ( internalField uniform (0 0 0) to (speed 0 0), outlet~~outletPhaseMeanVelocity and close awa option, but it not work. if u solved problem tell me plz:d
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September 20, 2020, 09:16 |
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#5 |
New Member
Jianjun Zhou
Join Date: Jul 2020
Posts: 5
Rep Power: 5 |
hello could you please tell me how to get a wave-current using streamfuction wave for detail Thank you!
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September 20, 2020, 09:19 |
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#6 | |
New Member
Jianjun Zhou
Join Date: Jul 2020
Posts: 5
Rep Power: 5 |
Quote:
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October 11, 2022, 07:14 |
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#7 |
New Member
Arun Kumar
Join Date: Sep 2019
Location: Dundee, Scotland
Posts: 15
Rep Power: 6 |
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October 11, 2022, 07:16 |
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#8 |
New Member
Arun Kumar
Join Date: Sep 2019
Location: Dundee, Scotland
Posts: 15
Rep Power: 6 |
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