Hello, I am seeing NAN time integration error while solving a simple problem with compressible NS solver. Can anyone tell me what is probably causing it? I have attached the screenshot of the error and the xml file running the solver. Thanks, Sidharth -- ------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
Hi Sidharth, can I ask you how you generated the mesh before converting to the xml format? I am looking at the xml file and am not convinced of the size of the composites. In case you used Gmsh can you send me your mesh script so I can have a look? Thanks, Daniele
On 18 Dec 2017, at 11:57, SIDHARTHA SANKAR SAMANTARAY <sss12@iitbbs.ac.in> wrote:
Hello, I am seeing NAN time integration error while solving a simple problem with compressible NS solver. Can anyone tell me what is probably causing it? I have attached the screenshot of the error and the xml file running the solver.
Thanks, Sidharth
Disclaimer: This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.<error.png><CylinderSubsonic_NS.xml>_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Hi Sidharth, I checked your xml file and it is missing a </REGION> on line 90. By fixing this I was able to start the simulation without getting a NaN. Cheers, Douglas 2017-12-18 9:57 GMT-02:00 SIDHARTHA SANKAR SAMANTARAY <sss12@iitbbs.ac.in>:
Hello, I am seeing NAN time integration error while solving a simple problem with compressible NS solver. Can anyone tell me what is probably causing it? I have attached the screenshot of the error and the xml file running the solver.
Thanks, Sidharth
------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Hi Douglas, Thanks a lot for the solution. I found that line was in every code of mine. But even after correcting that line, the same error can be seen with a structured mesh. I am sending you the gmsh script this time. Please tell me whether structured mesh has to be taken care in a special way. And another thing i want to know is whether each grid should be orthogonal to run the solver? Regards, Sidharth On Tue, Dec 19, 2017 at 3:02 AM, Douglas Serson <d.serson@gmail.com> wrote:
Hi Sidharth,
I checked your xml file and it is missing a </REGION> on line 90. By fixing this I was able to start the simulation without getting a NaN.
Cheers, Douglas
2017-12-18 9:57 GMT-02:00 SIDHARTHA SANKAR SAMANTARAY <sss12@iitbbs.ac.in> :
Hello, I am seeing NAN time integration error while solving a simple problem with compressible NS solver. Can anyone tell me what is probably causing it? I have attached the screenshot of the error and the xml file running the solver.
Thanks, Sidharth
------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- ------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
Hi Douglas, Thanks a lot for the solution. I found that line was in every code of mine. But even after correcting that line, the same error can be seen with a structured mesh. I am sending you the gmsh script this time. Please tell me whether structured mesh has to be taken care in a special way. And another thing i want to know is whether each grid should be orthogonal to run the solver? Regards, Sidharth On Tue, Dec 19, 2017 at 2:06 PM, SIDHARTHA SANKAR SAMANTARAY < sss12@iitbbs.ac.in> wrote:
Hi Douglas, Thanks a lot for the solution. I found that line was in every code of mine. But even after correcting that line, the same error can be seen with a structured mesh. I am sending you the gmsh script this time. Please tell me whether structured mesh has to be taken care in a special way. And another thing i want to know is whether each grid should be orthogonal to run the solver?
Regards, Sidharth
On Tue, Dec 19, 2017 at 3:02 AM, Douglas Serson <d.serson@gmail.com> wrote:
Hi Sidharth,
I checked your xml file and it is missing a </REGION> on line 90. By fixing this I was able to start the simulation without getting a NaN.
Cheers, Douglas
2017-12-18 9:57 GMT-02:00 SIDHARTHA SANKAR SAMANTARAY <sss12@iitbbs.ac.in
:
Hello, I am seeing NAN time integration error while solving a simple problem with compressible NS solver. Can anyone tell me what is probably causing it? I have attached the screenshot of the error and the xml file running the solver.
Thanks, Sidharth
------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
-- ------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
Hi Sidharth, Your geo file looks fine to me. However, I noticed a couple of problems in the mesh of the xml you just sent. First, composites 2 and 3 are switched compared to the geometry in the geo file (and to what I think makes sense in terms of boundary conditions). Also, the mesh near the inflow is non-conforming, as you can see in the attached image (i.e. one edge of the large element is connected to 3 different elements). This is not supported by Nektar++. How exactly did you generate this mesh? Using your geo file I obtained a completely different mesh from gmsh. Cheers, Douglas 2017-12-19 6:37 GMT-02:00 SIDHARTHA SANKAR SAMANTARAY <sss12@iitbbs.ac.in>:
Hi Douglas, Thanks a lot for the solution. I found that line was in every code of mine. But even after correcting that line, the same error can be seen with a structured mesh. I am sending you the gmsh script this time. Please tell me whether structured mesh has to be taken care in a special way. And another thing i want to know is whether each grid should be orthogonal to run the solver?
Regards, Sidharth
On Tue, Dec 19, 2017 at 2:06 PM, SIDHARTHA SANKAR SAMANTARAY < sss12@iitbbs.ac.in> wrote:
Hi Douglas, Thanks a lot for the solution. I found that line was in every code of mine. But even after correcting that line, the same error can be seen with a structured mesh. I am sending you the gmsh script this time. Please tell me whether structured mesh has to be taken care in a special way. And another thing i want to know is whether each grid should be orthogonal to run the solver?
Regards, Sidharth
On Tue, Dec 19, 2017 at 3:02 AM, Douglas Serson <d.serson@gmail.com> wrote:
Hi Sidharth,
I checked your xml file and it is missing a </REGION> on line 90. By fixing this I was able to start the simulation without getting a NaN.
Cheers, Douglas
2017-12-18 9:57 GMT-02:00 SIDHARTHA SANKAR SAMANTARAY < sss12@iitbbs.ac.in>:
Hello, I am seeing NAN time integration error while solving a simple problem with compressible NS solver. Can anyone tell me what is probably causing it? I have attached the screenshot of the error and the xml file running the solver.
Thanks, Sidharth
------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited. _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
------------------------------ *Disclaimer: *This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
participants (3)
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Daniele De Grazia
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Douglas Serson
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SIDHARTHA SANKAR SAMANTARAY