Linear stability analysis of a three-dimensional baseflow
Hello, I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation? Any help will be greatly appreciated. Thank you, Siddarth Chintamani
Dear Siddarth, We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one. One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them. Regards, Spencer. On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com<mailto:siddarth.ch1990@gmail.com>> wrote: Hello, I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation? Any help will be greatly appreciated. Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052
Dear, All I would like to know if the linear stability analysis (fully 3D stability or BiGlobal stability) could be used at high Re (such Re is about 10e5) for a bluff body such as square cylinder (external flow)? Regards! Hongfu. 2016-01-18 4:57 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk>:
Dear Siddarth,
We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one.
One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them.
Regards, Spencer.
On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com> wrote:
Hello,
I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation?
Any help will be greatly appreciated.
Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Dear Hongfu, This is theoretically possible. However the challenge I see behind your question is what you would take as an appropriate base flow? At such a high Reynolds number there are many different flow states and to perform stability analysis you have to have an appropriate base flow. Cheers, Spencer. On 18 Jan 2016, at 01:24, Hongfu Zhang <hongfu2233@gmail.com<mailto:hongfu2233@gmail.com>> wrote: Dear, All I would like to know if the linear stability analysis (fully 3D stability or BiGlobal stability) could be used at high Re (such Re is about 10e5) for a bluff body such as square cylinder (external flow)? Regards! Hongfu. 2016-01-18 4:57 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk>>: Dear Siddarth, We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one. One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them. Regards, Spencer. On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com<mailto:siddarth.ch1990@gmail.com>> wrote: Hello, I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation? Any help will be greatly appreciated. Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052
Dear, Spencer At such high Re, there may exist a primary votex shedding frequency in wake of a bluff body. I take these flow fields in a shedding period as base flow (phase-average may be used if the wake is not strict time period). Do you think it is a right way to study the period wake instability (BiGlobal stability analysis)? Best Regards! Hongfu 2016-01-19 2:30 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk>:
Dear Hongfu,
This is theoretically possible. However the challenge I see behind your question is what you would take as an appropriate base flow? At such a high Reynolds number there are many different flow states and to perform stability analysis you have to have an appropriate base flow.
Cheers, Spencer.
On 18 Jan 2016, at 01:24, Hongfu Zhang <hongfu2233@gmail.com> wrote:
Dear, All I would like to know if the linear stability analysis (fully 3D stability or BiGlobal stability) could be used at high Re (such Re is about 10e5) for a bluff body such as square cylinder (external flow)?
Regards! Hongfu.
2016-01-18 4:57 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk>:
Dear Siddarth,
We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one.
One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them.
Regards, Spencer.
On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com> wrote:
Hello,
I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation?
Any help will be greatly appreciated.
Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
Hi, I am not sure what this might show. At lower Reynolds numbers we expect secondary instabilities to have arisen from Mode A or B secondary instabilities and so it is not clear to me that higher Reynolds number instabilities should derive from a periodic or phase averaged field rather than a fully three-dimensional, probably unsteady flow field. So I understand the onset can be capture with biglobal stability but that is at Lower Reynolds numbers. I do not understand what is the appropriate question at higher Reynolds numbers. Cheers, Spencer. On 19 Jan 2016, at 12:36, Hongfu Zhang <hongfu2233@gmail.com<mailto:hongfu2233@gmail.com>> wrote: Dear, Spencer At such high Re, there may exist a primary votex shedding frequency in wake of a bluff body. I take these flow fields in a shedding period as base flow (phase-average may be used if the wake is not strict time period). Do you think it is a right way to study the period wake instability (BiGlobal stability analysis)? Best Regards! Hongfu 2016-01-19 2:30 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk>>: Dear Hongfu, This is theoretically possible. However the challenge I see behind your question is what you would take as an appropriate base flow? At such a high Reynolds number there are many different flow states and to perform stability analysis you have to have an appropriate base flow. Cheers, Spencer. On 18 Jan 2016, at 01:24, Hongfu Zhang <hongfu2233@gmail.com<mailto:hongfu2233@gmail.com>> wrote: Dear, All I would like to know if the linear stability analysis (fully 3D stability or BiGlobal stability) could be used at high Re (such Re is about 10e5) for a bluff body such as square cylinder (external flow)? Regards! Hongfu. 2016-01-18 4:57 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk>>: Dear Siddarth, We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one. One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them. Regards, Spencer. On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com<mailto:siddarth.ch1990@gmail.com>> wrote: Hello, I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation? Any help will be greatly appreciated. Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052 _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052 Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052
Dear Spencer, Thank you very much for your reply! Best Regards! Hongfu 2016-01-20 1:24 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk>:
Hi,
I am not sure what this might show. At lower Reynolds numbers we expect secondary instabilities to have arisen from Mode A or B secondary instabilities and so it is not clear to me that higher Reynolds number instabilities should derive from a periodic or phase averaged field rather than a fully three-dimensional, probably unsteady flow field. So I understand the onset can be capture with biglobal stability but that is at Lower Reynolds numbers. I do not understand what is the appropriate question at higher Reynolds numbers.
Cheers, Spencer.
On 19 Jan 2016, at 12:36, Hongfu Zhang <hongfu2233@gmail.com> wrote:
Dear, Spencer At such high Re, there may exist a primary votex shedding frequency in wake of a bluff body. I take these flow fields in a shedding period as base flow (phase-average may be used if the wake is not strict time period). Do you think it is a right way to study the period wake instability (BiGlobal stability analysis)? Best Regards! Hongfu
2016-01-19 2:30 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk>:
Dear Hongfu,
This is theoretically possible. However the challenge I see behind your question is what you would take as an appropriate base flow? At such a high Reynolds number there are many different flow states and to perform stability analysis you have to have an appropriate base flow.
Cheers, Spencer.
On 18 Jan 2016, at 01:24, Hongfu Zhang <hongfu2233@gmail.com> wrote:
Dear, All I would like to know if the linear stability analysis (fully 3D stability or BiGlobal stability) could be used at high Re (such Re is about 10e5) for a bluff body such as square cylinder (external flow)?
Regards! Hongfu.
2016-01-18 4:57 GMT+08:00 Sherwin, Spencer J <s.sherwin@imperial.ac.uk>:
Dear Siddarth,
We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one.
One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them.
Regards, Spencer.
On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com> wrote:
Hello,
I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation?
Any help will be greatly appreciated.
Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
_______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
Dear Spencer, We have obtained steady state solutions using the SFD technique with multiple filters and used it as baseflow in the past. We have done it using an adaptive finite volume code and used multiple filters to filter out the unstable high frequency shear modes and low frequency modes. I am just starting to use finite element methods but I think the same techniques should work. I wanted to make sure that the direct and adjoint evolution operators in nektar can handle the relatively large meshes in 3D flows. And the user guide mentions that the stability analysis is limited to 2D or quasi 3D (I am wondering why?). It would be great if I could get hold of Bastiens thesis. Thank you very much. Regards, Siddarth Chintamani
On Jan 17, 2016, at 2:57 PM, Sherwin, Spencer J <s.sherwin@imperial.ac.uk> wrote:
Dear Siddarth,
We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one.
One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them.
Regards, Spencer.
On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com> wrote:
Hello,
I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation?
Any help will be greatly appreciated.
Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
Dear Siddarth, OK that sounds pretty similar to Bastien’s approach. We will hopefully get hold of that copy for you soon. The main reason the user guide stated 2D and quasi 3D is because that is what we initially set up the code to handle. We have however extended the Arnoldi methods we are using to parallel and implemented the 3D linearised terms. So it mainly needs further validation to see how it is working. Cheers, Spencer. On 18 Jan 2016, at 09:47, Siddarth Chintamani <siddarth.ch1990@gmail.com<mailto:siddarth.ch1990@gmail.com>> wrote: Dear Spencer, We have obtained steady state solutions using the SFD technique with multiple filters and used it as baseflow in the past. We have done it using an adaptive finite volume code and used multiple filters to filter out the unstable high frequency shear modes and low frequency modes. I am just starting to use finite element methods but I think the same techniques should work. I wanted to make sure that the direct and adjoint evolution operators in nektar can handle the relatively large meshes in 3D flows. And the user guide mentions that the stability analysis is limited to 2D or quasi 3D (I am wondering why?). It would be great if I could get hold of Bastiens thesis. Thank you very much. Regards, Siddarth Chintamani On Jan 17, 2016, at 2:57 PM, Sherwin, Spencer J <s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk>> wrote: Dear Siddarth, We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one. One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them. Regards, Spencer. On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com<mailto:siddarth.ch1990@gmail.com>> wrote: Hello, I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation? Any help will be greatly appreciated. Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk<mailto:Nektar-users@imperial.ac.uk> https://mailman.ic.ac.uk/mailman/listinfo/nektar-users Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052 Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ s.sherwin@imperial.ac.uk<mailto:s.sherwin@imperial.ac.uk> +44 (0) 20 759 45052
Dear Spencer, Thank you very much. Regards, Siddarth Chintamani Sent from my iPhone
On Jan 18, 2016, at 12:28 PM, Sherwin, Spencer J <s.sherwin@imperial.ac.uk> wrote:
Dear Siddarth,
OK that sounds pretty similar to Bastien’s approach. We will hopefully get hold of that copy for you soon.
The main reason the user guide stated 2D and quasi 3D is because that is what we initially set up the code to handle. We have however extended the Arnoldi methods we are using to parallel and implemented the 3D linearised terms. So it mainly needs further validation to see how it is working.
Cheers, Spencer.
On 18 Jan 2016, at 09:47, Siddarth Chintamani <siddarth.ch1990@gmail.com> wrote:
Dear Spencer,
We have obtained steady state solutions using the SFD technique with multiple filters and used it as baseflow in the past. We have done it using an adaptive finite volume code and used multiple filters to filter out the unstable high frequency shear modes and low frequency modes. I am just starting to use finite element methods but I think the same techniques should work.
I wanted to make sure that the direct and adjoint evolution operators in nektar can handle the relatively large meshes in 3D flows. And the user guide mentions that the stability analysis is limited to 2D or quasi 3D (I am wondering why?).
It would be great if I could get hold of Bastiens thesis.
Thank you very much.
Regards, Siddarth Chintamani
On Jan 17, 2016, at 2:57 PM, Sherwin, Spencer J <s.sherwin@imperial.ac.uk> wrote:
Dear Siddarth,
We have been exploring this option, most recently in the work of Bastien Jordi under his thesis work. I am trying to get hold of a digital copy or Bastien can send you one.
One of the challenges of doing fully 3D stability analysis is how to get hold of an appropriate base flow. Do you have a way to do this? Otherwise I think the tools are generally working although we are continuing to validate them.
Regards, Spencer.
On 16 Jan 2016, at 22:24, Siddarth Chintamani <siddarth.ch1990@gmail.com> wrote:
Hello,
I am trying to perform stability analysis of linearized incompressible Navier Stokes equation of a three-dimensional baseflow. I understand that Nektar++ capabilities for stability analysis are limited to 2D or Quasi3D baseflow representation. Unfortunately, my problem has to be solved as 3D. Is there any way to relax the 2D or quasi3D representation?
Any help will be greatly appreciated.
Thank you, Siddarth Chintamani _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
Spencer Sherwin McLaren Racing/Royal Academy of Engineering Research Chair, Professor of Computational Fluid Mechanics, Department of Aeronautics, Imperial College London South Kensington Campus London SW7 2AZ
s.sherwin@imperial.ac.uk +44 (0) 20 759 45052
participants (3)
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Hongfu Zhang
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Sherwin, Spencer J
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Siddarth Chintamani