February 2022 - Nektar-users

General Information- Restarting simulations
by Paul Liu 10 Feb '22

10 Feb '22

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi Everyone, I was wondering if there is a section outlining how to restart simulations using the pre-built solver in NEKTAR++, specifically the AcousticSolver? I have not found a section in the user guide outlining how to restart simulations. Thank you. *YiLin Liu * *403-397-3457* *liuyilin.liu(a)gmail.com <liuyilin.liu(a)gmail.com>* MASc Student at CML <https://cml.mech.ubc.ca/> UBC

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Acoustic Boundary Condition
by Paul Liu 07 Feb '22

07 Feb '22

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi Everyone, I was just wondering if there is a paper or documentation outlining how the characteristic non-reflecting boundary condition is formulated for the LEE. I saw a glimpse of it at in the code but was wondering if there are any extra details as I am trying to understand nektar++ better. Thank you everyone *YiLin Liu * *403-397-3457* *liuyilin.liu(a)gmail.com <liuyilin.liu(a)gmail.com>* MASc Student at CML <https://cml.mech.ubc.ca/> UBC

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problems with FieldConvert
by Alessandro Alberto de Lima 02 Feb '22

02 Feb '22

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi Guys. I'm trying to get lines, planes and boxes interpolated without using paraview, direct from FieldConvert but I'm getting a "Segmentation fault". My case is a 3DH1D simulation. Thank you. Alessandro

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Acoustic Solver Case Questions
by Paul Liu 01 Feb '22

01 Feb '22

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi All, I am trying to run a simple case prescribing an exponential function that is sinusoidal in time for the energy equation in both APE and LEE solvers. I have the analytical solution for this case. The results from APE and LEE solvers agree with each other but the amplitude is quite different from the analytical solution. I have included a more detailed summary (pdf) and all the case setup files in the zip file. I was wondering if I messed up the setup for the cases or is there some kind of scaling on the variables that I am not aware of? Thank you all. *YiLin Liu * *403-397-3457* *liuyilin.liu(a)gmail.com <liuyilin.liu(a)gmail.com>* MASc Student at CML <https://cml.mech.ubc.ca/> UBC

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