Re: [deal.II] Examples makefile

2017-01-14 Thread Jean-Paul Pelteret
Dear Victor, CMake has some facilities to add to the link line. Here are a couple of stackoverflow posts t

Re: [deal.II] Examples makefile

2017-01-14 Thread Victor Eijkhout
On Jan 14, 2017, at 5:48 AM, 'Seyed Ali Mohseni' via deal.II User Group mailto:dealii@googlegroups.com>> wrote: I would check first of all, if you compiled Trilinos with the correct settings, I believe so. It’s just a case of a missing python library. Can you explain how I can add an extra li

[deal.II] Re: Strain tensor and displacement gradients

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
I checked the Gauss points within my normal computation using FEValues and compared them with the evaluation points from the DataPostprocessor: GAUSS POINT COORDINATES 0.211325 0.211325 0.788675 0.211325 0.211325 0.788675 0.788675 0.788675 EVALUATION POINTS 0.00 0.00

[deal.II] Re: Strain tensor and displacement gradients

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
>From what I learned, all information we obtain from FEValues is automatically mapped from the unit cell to the physical space/coordinates. By patch vertices you mean the nodes of each element, hence DataPostprocessor gives me the gradients with respect to the mapped gauss points to the nodes o

[deal.II] Re: Strain tensor and displacement gradients

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
>From what I learned, all informtion we obtain from FEValues is aoutomatically mapped from the unit cell to the physical space/coordinates. By patch vertices you mean the nodes of each element, hence DataPostprocessor gives me the gradients with respect to the mapped gauss points to the nodes o

Re: [deal.II] Values of a given point on the interface of two different domain

2017-01-14 Thread lianzhang030592
Thank you very much^-^. Using an epsilon is a very smart idea. On Saturday, 14 January 2017 23:53:47 UTC+8, Wolfgang Bangerth wrote: > > On 01/14/2017 08:35 AM, lianzha...@gmail.com wrote: > > > > My problem comes from step-46, which couples two different domains. Now, > I > > want to get th

Re: [deal.II] Values of a given point on the interface of two different domain

2017-01-14 Thread Wolfgang Bangerth
On 01/14/2017 08:35 AM, lianzhang030...@gmail.com wrote: My problem comes from step-46, which couples two different domains. Now, I want to get the values of a given point on the interface, so I use VectorTools::point_value. However, the point on interface has two sets of dofs, the one of which

[deal.II] Values of a given point on the interface of two different domain

2017-01-14 Thread lianzhang030592
Dear all, My problem comes from step-46, which couples two different domains. Now, I want to get the values of a given point on the interface, so I use VectorTools::point_value. However, the point on interface has two sets of dofs, the one of which is corresponding to stokes_fe (velocity_x, v

[deal.II] Re: Strain tensor and displacement gradients

2017-01-14 Thread Daniel Arndt
> > Using the postprocessor approach according to step-33 I have computed the > strain tensor successfully by means of the > Postprocessor::compute_derived_quantities_vector function and its > displacement gradient duh. > > Unfortunately, within an arbitrary function called right after I solve

[deal.II] Re: Examples makefile

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
Hi Victor, I would check first of all, if you compiled Trilinos with the correct settings, e.g. mkdir build cd build cmake \ -DCMAKE_C_COMPILER=/path_to_your_installation/mpich-3.2/bin/mpicc \ -DCMAKE_CXX_COMPILER=/path_to_your_installation/mpich-3.2/bin/mpicxx \ -DCMAKE_For

[deal.II] Re: Strain tensor and displacement gradients

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
Hi, Using the postprocessor approach according to step-33 I have computed the strain tensor successfully by means of the Postprocessor::compute_derived_quantities_vector function and its displacement gradient duh. Unfortunately, within an arbitrary function called right after I solve the syst

[deal.II] Re: Strain tensor and displacement gradients

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
Hi, Using the postprocessor approach according to step-33 I have computed the strain tensor successfully by means of the Postprocessor::compute_derived_quantities_vector function and its displacement gradient duh. Unfortunately, within an arbitrary function called right after I solve the syst

[deal.II] Strain tensor and displacement gradients

2017-01-14 Thread 'Seyed Ali Mohseni' via deal.II User Group
Hi, Using the postprocessor approach according to step-33 I have computed the strain tensor successfully by means of the Postprocessor::compute_derived_quantities_vector function and its displacement gradient duh. Unfortunately, within an arbitrary function called right after I solve the syst