Example with analytical solution

greetings everyone!

Are there any examples with analytical solutions in this program?

(such as Taylor-Green Vortex)

Regards

Comments

  • There is an example with Poiseuille flow, if that is what you mean?

    I also believe that the Taylor-Green Vortex has been simulated in a few different SPH papers, but I don't think there is an easy way to do it directly inside of DualSPHyiscs, without altering the code - I might be wrong though!

    Kind regards

  • This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.

    There is an example with Poiseuille flow, if that is what you mean?

    I also believe that the Taylor-Green Vortex has been simulated in a few different SPH papers, but I don't think there is an easy way to do it directly inside of DualSPHyiscs, without altering the code - I might be wrong though!

    Kind regards

    Thanks for your guidance!

    I tried to solve the Taylor-Green Vortex problem with Dualsphysics, but when I set the gravity to zero, it gives an error.

    Kind regards.

  • edited October 2021

    What was the error? It could simply be that you have to specify a speed of sound directly, which is a common error when gz has been set to zero.

    Kind regards

  • This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.

    What was the error? It could simply be that you have to specify a speed of sound directly, which is a common error when gz has been set to zero.

    Kind regards

    Dedicated to you


  • Please follow the example in DualSPHysics_v5.0\examples\main\03_MovingSquare where we have imposed the value of cteB:

          <b value="1.1200e+05" auto="false" />

    Otherwise with gravity = 0 then cteB=0


    Regards

  • This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.

    Please follow the example in DualSPHysics_v5.0\examples\main\03_MovingSquare where we have imposed the value of cteB:

          <b value="1.1200e+05" auto="false" />

    Otherwise with gravity = 0 then cteB=0

    Regards

    Thank you very much for your guidance and kindness

  • This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.

    Exactly as @Alex said, just to show you the formula as well:


    So you should not set b to anything random, but here you have a formula of how to calculate it.

    Kind regards

  • This is an embed external element. It can be deleted using the delete key or the backspace key. To view the full element, press the preview button below.

    https://forums.dual.sphysics.org/discussion/comment/4656#Comment_4656

    Exactly as @Alex said, just to show you the formula as well:

    https://forums.dual.sphysics.org/uploads/711/5R5CDCTPWOWZ.png

    So you should not set b to anything random, but here you have a formula of how to calculate it.

    Kind regards

    Thank you very much for making this clear to me

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#13 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(862): DiscussionController->comment('4655')
#14 /var/www/forums-dual-sphysics-org/library/core/class.dispatcher.php(279): Gdn_Dispatcher->dispatchController(Object(Gdn_Request), Array)
#15 /var/www/forums-dual-sphysics-org/index.php(29): Gdn_Dispatcher->dispatch()
#16 {main}