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The attached wedge_2.geo file produces the error > File "/usr/lib/python3.4/site-packages/pyfr/readers/base.py", line 194, in > get_connectivity > raise ValueError('Unpaired faces in mesh') > when attempting to run 'pyfr import wedge_2.msh wedge.pyfrm'. If I uncomment the line '//Physical ...

Author: Andrew Hedrick
Date: Fri, 25 May 2018 17:51:05 UTC
Link:
Hi all, Quick question: how did the authors create "quadratically curved elements" for the cylinder and T106D LPT blade case in the following papers? [1] B. C. Vermeire, F. D. Witherden, and P. E. Vincent, “On the utility of GPU accelerated high-order methods for unsteady flow simulations: A ...

Author: Vishal Saini
Date: Thu, 17 May 2018 11:02:36 UTC
Link:
hi all, I'm interested in running turbulent pipe like simulations for which I need to provide turbulent inlet boundary conditions. Assume that I can not use periodic boundary condition for inlet from the outlet. There are two usual ways: 1. use input files for each time step from another ...

Author: Vishal Saini
Date: Fri, 11 May 2018 10:43:20 UTC
Link:
Dear All, I am a PhD student at the Massachusetts Institute of Technology (MIT) and I am interested to use PyFR for in-situ simulations as part of my research. I saw this post referencing PyFR on the Catalyst website: https://www.paraview.org/catalyst-adaptors/ I was wondering if you can ...

Author: M S
Date: Fri, 11 May 2018 04:55:50 UTC
Link:
Hi all, I’m a PhD student comparing PyFR to standard CFD tools in a hope to transferring high-order technology to industrial applications. As a start, I’ve recently tried to run 3D Taylor-Green vortex case (Re=1600, M=0.1 Ref:[1]) using compressible PyFR solver (PyFR 1.7.5). I’m running the ...

Author: Vishal Saini
Date: Mon, 30 Apr 2018 10:56:36 UTC
Link:
Dear Sir or Madam, I am writing to inquire about the frequently NaN check error in the "inc_cylinder_2d". As a newbie of PyFR, I used to try to change the Reynold number of the example by editing the "Uin". The default Reynolds number was 125 and the NaN check errors occurred only when the ...

Author: LIN Ruoshui
Date: Fri, 20 Apr 2018 04:30:00 UTC
Link:
Dear developers and dear fellow pyFR users, I have a few questions concerning the data location in high order cells as present in pyFR and the calculation of the dimensionless wall normal distance (Let's call it y+ from this point on) accordingly. 1) Calculation of y+ To calculate the y+ value ...

Author: Hendrik
Date: Wed, 18 Apr 2018 11:33:07 UTC
Link:
Dear all, I've tried to run the example "inc_cylinder_2d" with PyFR v.1.7.6. Now I would like to change the Reynolds number of the example and observe the distribution of the pressure factor in the surface of the cylinder. Questions list below: Mesh file: 1. Unit ...

Author: LIN Ruoshui
Date: Fri, 06 Apr 2018 06:31:45 UTC
Link:
Hi, I've encountered some problems with trying to use openmp with windows. I've followed https://groups.google.com/forum/#!searchin/pyfrmailinglist/windows$2010%7Csort:date/pyfrmailinglist/Kaygd-9ni2k/42IqyZfIBAAJ for the setup for the most part. While trying to run mpiexec -n 2 pyfr run -b ...

Author: Magnus
Date: Thu, 05 Apr 2018 13:35:00 UTC
Link:
Hi, I want to create more than one partition for couette_flow_2d but I receive the following error $ pyfr import couette_flow_2d.msh couette_flow_2d.pyfrm/home/mahmood/.local/lib/python3.6/site-packages/h5py/__init__.py:36: FutureWarning: Conversion of the second argument of issubdtype from ...

Author: Mahmood Naderan
Date: Thu, 05 Apr 2018 09:02:05 UTC
Link:
Dear All, I am currently running PyFR within a Python virtual environment. Every time I run a PyFR command, I get the warning message displayed in the attachment. Do you know what might be the cause for this? Best regards, Alexandru Dorcioman ...

Author: Alexandru Dorcioman
Date: Tue, 03 Apr 2018 20:24:20 UTC
Link:
Hi, When I look at the couette_flow_2d.ini, I see that the backend-openmp is blank. Also there is no [backend-cuda] entry. So, is the command pyfr run -b cuda -p couette_flow_2d.pyfrm couette_flow_2d.ini correct? Regards, Mahmood ...

Author: Mahmood Naderan
Date: Sat, 31 Mar 2018 15:30:50 UTC
Link:
Hi, I'm attempting to run c:\PyFR-1.7.5\examples\euler_vortex_2d>mpiexec -n 2 pyfr run -b cuda -p euler_vortex_2d.pyfrm euler_vortex_2d.ini with the change in .ini file from device-id = round-robin to device-id = local-rank . I get pycuda.driver.CompileError: nvcc compilation of ...

Author: Magnus
Date: Wed, 28 Mar 2018 17:35:05 UTC
Link:
Hi all, I'm new to the high-order CFD world. I just have started playing around with PyFR and was hoping to implement Smagorinsky SGS model in the code. This model requires velocity gradients which I think are being calculated in flux calculation of navstokes solver (pyfr/solvers/navstokes/kern ...

Author: Vishal Saini
Date: Tue, 27 Mar 2018 19:50:49 UTC
Link:
My question may likely be addressed to Freddie. Previously, I had been running the clang-omp compiler with PyFr as the cc compiler in order to use OpenMP as a backend.. Apparently clang-omp has been deprecated, since OpenMP has been rolled into the main llvm branch. I have installed libomp, ...

Author: Zach Davis
Date: Fri, 23 Mar 2018 19:09:34 UTC
Link:

Latest Release

PyFR 1.7.5:

  • Added support for P0 multi-p convergence acceleration.
  • Added maximum time-step option for PI controller.

Join our Team

Postdoctoral Position - GPU Accelerated High-Order Computational Fluid Dynamics
Summary: A fully funded Postdoctoral position is currently available. The project, will involve development of PyFR, an open-source high-order massively-parallel cross-platform CFD solver, as well as its application to solve a range of challenging unsteady flow problems. Candidates should hold, or expect to obtain, a PhD in a numerate discipline from a world-leading university.

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