Dear All, We have released PyFR v1.7.6. New Features: - Bug fixes in OpenCL backend. - Bug fixes in parallel HDF5 writer. Download: http://www.pyfr.org/download.php Thanks again for your interest in the project. Peter Dr Peter Vincent MSci ARCS DIC PhD FRAeS Reader in Aeronautics ...

Author: Vincent, Peter E
Date: Tue, 14 Aug 2018 14:16:43 UTC
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Hi guys, I am trying to define some velocity profiles in [soln-ics] using the expressions below. I think that it doesn't pass the 'if' and 'else' statements to the solver. Do you have some suggestions please? Any help would be much appreciated. Cheers, Andrei *if y<1.:* * yplus = y * ...

Author: AC
Date: Mon, 13 Aug 2018 15:47:40 UTC
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Hello all, Is there a "filter" that can render C0 continuous data from PyFR output (that is by definition discontinuous at the elements). Why? I'm trying to calculate PSD in space for Taylor-Green Vortex case and there occur peaks on wave-numbers corresponding to the element size. Kindly ...

Author: Vishal Saini
Date: Fri, 10 Aug 2018 18:15:16 UTC
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When using hex elements with order say 4 or 5, the number of non-zeros in the GiMMiK kernels gets quite high. E.g., with n=4, tgradpcoru_upts [hex] appears to get 1819 non-zeros from 46875 entries (i.e. about 4% non-zeros) Just wondering, for high-order 3d runs, what's an appropriate way to ...

Author: nnunn
Date: Thu, 09 Aug 2018 15:37:57 UTC
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Hi all, I'm a first year PhD student and interested in calculating the volume integrals of expressions like (u.u + v.v + w.w) in the whole domain of Taylor-Green vortex problem. I'd like to do it within PyFR because I found that if I write the results and do the integrals in say, Paraview ...

Author: Vishal Saini
Date: Thu, 26 Jul 2018 08:25:55 UTC
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Hello All, I am hacking around with PyFR trying to see if I can implement reacting flows into the solver. My first step has been to just get species mass fractions as passive scalars in the euler solver and implement mixture thermodynamics (i.e. calculate mixture Cp, Rg, Cv, etc. to then ...

Author: Kyle Schau
Date: Sat, 14 Jul 2018 21:31:17 UTC
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I've looked at that e-mail, whose link is https://groups.google.com/forum/#!topic/pyfrmailinglist/1gzySxywKtQ. In that mail, an instruction called --export PYFR_LIBRARY_PATH=(your CGNS library path) Therefore, I wrote down this instruction. pyfr@ubuntu:~/users$ export PYFR_LIBARY_PATH="/home/cgns ...

Author: Richard Qin
Date: Thu, 28 Jun 2018 08:09:52 UTC
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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
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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
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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
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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
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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
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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
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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
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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
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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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