## Elastic wave

The graphical user interface of Elmer
Fouzi
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Joined: 14 Mar 2017, 18:03
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### Re: Elastic wave

ok yes sure like i did with elmf90, ok thank you

Fouzi

Fouzi
Posts: 55
Joined: 14 Mar 2017, 18:03
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### Re: Elastic wave

Hi,

I start see the annimation with paraview, but i don't have the propagation it's look like a local source???help please?

Fouzi
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local_source.PNG (100.91 KiB) Viewed 585 times

Fouzi
Posts: 55
Joined: 14 Mar 2017, 18:03
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### Re: Elastic wave

Hi ,

http://elmerfem.org/forum/viewtopic.php ... 4d6#p13226

for the solvers method should i follow him or not:

Code: Select all

Solver 1

Linear System Solver = "Direct"
Linear System Direct Method = Umfpack
Steady State Convergence Tolerance = 1e-09
End
Fouzi

Fouzi
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### Re: Elastic wave

Hi

some one can help me please?

Fouzi

mzenker
Posts: 1741
Joined: 07 Dec 2009, 11:49
Location: Germany

### Re: Elastic wave

Well, just try it and see what happens...

Matthias

Fouzi
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### Re: Elastic wave

Hi,

I don't understund sorry, i try what?

Fouzi

Fouzi
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### Re: Elastic wave

For the momment i suspect this part is wrong:

Code: Select all

Variable Coordinate 1, Coordinate 2, Time;  Real  MATC "if (tx(0)==0.4375&tx(1)==-0.15)sin(2*pi*20000*tx(2))*(tx(2)<=0.00005);else 0;"

Fouzi

mzenker
Posts: 1741
Joined: 07 Dec 2009, 11:49
Location: Germany

### Re: Elastic wave

Hi,

I intended to reply to your question whether or not you should use the settings proposed in the discussion you referred to in the previous post.
I don't know why your result is not what you expect. I don't have the time (and the mechanics knowledge) to check the physics of your problem and to verify if what you entered in the sif file really corresponds to what you think you have entered...
So I'm afraid you will have to check for yourself - the line of code you show seems to be a 20 kHz oscillation, is that correct?

Matthias

Fouzi
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Joined: 14 Mar 2017, 18:03
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### Re: Elastic wave

yes 20khz

Fouzi

mzenker
Posts: 1741
Joined: 07 Dec 2009, 11:49
Location: Germany

### Re: Elastic wave

Hi,

this part of your MATC expression seems strange to me:

Code: Select all

sin(2*pi*20000*tx(2))*(tx(2)<=0.00005)
What if you included the (tx(2)<=0.00005) in the if() condition?
I would play with the MATC expression to see if it changes something...

HTH,

Matthias