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Hi,

For the estimation of wave propagation along my study area I used TOMAWAC and run it.it runs smoothly and getting results files. But when I tried to plot the results parameters using FUDDA it showing results column as ZERO.I just tried to run TOMAWAC with keeping default values for all parameters by entering only the geometry file and boundary conditions file in the 'cas' file.
One more thing is that I have doubt on terms such as initial significant wave height and boundary significant wave height.What is the difference between these initial and boundary significant wave height values especially between initial and boundary terms.From where I will get details(what they represents in detail) on terms which are using for imputing parameters in parameter file.

warm regards,

Thank you.

Hello,

Can you try to load your TOMAWAC files into Blue Kenue and see if the problem is still there. This will help us know whether your file is corrupted, whether TOMAWAC did not produce the anticipated because of your simulation settings or whether FUDAA has a bug.

Blue Kenue is developed by our Canadian colleague:
Blue Kenue from Canadian Hydraulics Centre

Thanks you

To answer your second question, there is a very comprehensive manual on TOMAWAC in the Download area, under Docs => TOMAWAC. Please read through.

Hope this helps

Sébastien.

Hi

I tried to download Blue Kenue from the site but i am not able to do it.So I am attaching all my files(telemac.rar) with this.Can some one help me to solve this problem.

Thank you.

Hi,

Adding zipped file

regards.

Hi all,

No one can help me to solve this problem.

Regards.

Hello,

The person in charge of Tomawac will give you an answer this week,

WIth best regards,

Jean-Michel Hervouet

Hello,

I took a quick look at your model. I can open and visualize the results with fudaa.
The results you obtain are zeros because the water depth you have set in all the point of the mesh is negative (in other words all the points of the mesh are above the sea level).
You must impose a positive water depth in order to solve correctly your model.

Some other remarks:
- In the boundary conditions file you cannot assign value 1 to the first column: you can set either the value 2 in case of a completely absorbing boundary or the value 5 in case you want to impose a spectrum (I think this is your case).

- The frequencies you set in the steering file must be expressed in Hertz. You set as minimum frequency a value of 5Hz: this is physically unrealistic (that means the your peak period is equal to 0.2s)

- The initial conditions are the sea-state conditions you impose over all the points of the model at the time t=0; the boundary conditions are the sea-state conditions you set at the boundaries and that TOMAWAC propagates into the model. In the default case, the boundary sea-state conditions you set are stationary, i.e. are constant over the whole simulation.

Hope it helps,

Giovanni

Dear Giovanni,

Thank you Giovanni for your advise on my problem.It helped me to solve the problem, and now I am getting results.Still I have doubt on initial and boundary conditions.As you told " The initial conditions are the sea-state conditions you impose over all the points of the model at the time t=0; the boundary conditions are the sea-state conditions you set at the boundaries and that TOMAWAC propagates into the model". So is it only required to give intial conditions in the cas file to run TOMAWAC.Can you tell what is the significance of boundary conditions to run the model TOMAWAC.I have square type study area with three liquid boundaries and one solid boundary as shoreline.


Thanks and warm regards

Glejin

:) :)

Hello,

if you set only initial conditions in your model, without specifying boundary conditions, the final result of your simulation will be a zero wave height.
The boundary conditions are used for two purposes :
- to impose a wave energy flux entering the model domain (in this case you must set the value 5 in the first column of the boundary conditions file)
- to represent solid absorbing (islands, coasts)and in some cases liquid boundaries along which the wave energy can only exit and cannot enter (in this case the value to set is 2).
So, via the boundary conditions you set where wave energy flux enters or is absorbed in the model domain.
If you do not set any boundary conditions there is not wave energy entering the model, i.e. during the simulation the wave height tend to zero, unless you impose a forcing wind over the domain.

For more details, please, refer to the TOMAWAC guide.

Kind regards,

Giovanni