Re: [deal.II] Can someone send me an offline documentation of dealii?

2017-08-18 Thread 曾元圆
Thank you so much! 在 2017年8月18日星期五 UTC+8下午11:58:12,Matthias Maier写道: > > > On Fri, Aug 18, 2017, at 10:11 CDT, 曾元圆 <2012...@gmail.com > > wrote: > > > I don’t know why I can't download it from the website, the download > speed > > is too slow. Can someone send it to me?My email address: > >

Re: [deal.II] Combining Taylor-Hood and Raviart Thomas spaces with hp::FECollection

2017-08-18 Thread Wolfgang Bangerth
On 08/18/2017 06:19 AM, Eldar Khattatov wrote: It tries to compare FE_RaviartThomas. This element indeed does not implement compare_for_face_domination() function, Correct. Though you could think about implementing it. so I tried using FE_RaviartThomasNodal instead, as it provides an

Re: [deal.II] Can someone send me an offline documentation of dealii?

2017-08-18 Thread Daniel Arndt
Alternatively, you can also build the documentation yourself using the instructions at https://www.dealii.org/developer/readme.html#documentation Best, Daniel -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see

Re: [deal.II] Can someone send me an offline documentation of dealii?

2017-08-18 Thread Matthias Maier
On Fri, Aug 18, 2017, at 10:11 CDT, 曾元圆 <2012zg...@gmail.com> wrote: > I don’t know why I can't download it from the website, the download speed > is too slow. Can someone send it to me?My email address: > 12131...@buaa.edu.cn. Thanks! 150MB is a bit too much to send via e-mail. Please try

Re: [deal.II] Re: Reading Abaqus boundary conditions

2017-08-18 Thread Jie Cheng
Hi Jean-Paul and Wolfgang Following your suggestions, I found that the name of surfaces must be prefixed with SS, for example SS1. The SURF- prefix doesn't work. Now my program can apply boundary indicators to the target surfaces. I will write code to read the traction/pressure load and apply

[deal.II] Usage of the laplace-matrix in example 23

2017-08-18 Thread 'Maxi Miller' via deal.II User Group
I am trying to develop my own code based on example 23 (\partial_t U = i/(2k)\nabla^2U), and am trying to understand the purpose of the laplace-matrix. Why is it used in order to multiply in both sides, in comparison with the weak formulation (\nabla\phi_i,\nabla\phi_j) and the assembly of the

[deal.II] Can someone send me an offline documentation of dealii?

2017-08-18 Thread 曾元圆
I don’t know why I can't download it from the website, the download speed is too slow. Can someone send it to me?My email address: 12131...@buaa.edu.cn. Thanks! -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see

Re: [deal.II] 2D waveguide using Nedelec elements

2017-08-18 Thread Jean-Paul Pelteret
Hi Rolf, Step-55 has PETSc compatibility and constructs a block system. You can look there for information as to how to initialise the block system. I hope that this helps. Regards, Jean-Paul On Friday, August 18, 2017 at 3:38:19 PM

Re: [deal.II] constraint around hole / equivalent node

2017-08-18 Thread Tuanny Cajuhi
Dear Jean-Paul, thank you for the keyword an thread. As far as I understood, this is an alternative to the combination set_boundary_ids + interpolate_boundary_values. This still means that we identy the edges of the hole and apply the load there, which is fine for small deformations and works for

Re: [deal.II] 2D waveguide using Nedelec elements

2017-08-18 Thread Rolf Wester
Hi Wolfgang, I still try to implement it. There is one point that I could not figure out until now. I need PETScWrappers::BlockSparseMatrix for the eigensolver and I don't know how to initialize these with the block information. I have two function spaces, FE_Nedelec(order-1) and

[deal.II] Re: Iterate over cell centers

2017-08-18 Thread Jean-Paul Pelteret
Dear Nitish, If you are wanting to iterate over cell centres (or, rather, iterate over cells and query them for their centre), then you would do very similar to what you've posted: for (typename Triangulation::active_cell_iterator cell=triangulation.begin_active();

Re: [deal.II] Re: Post-processing: how can the method compute_derived_quantities_vector be informed about cell->user_pointer() ?

2017-08-18 Thread Jean-Paul Pelteret
Dear Alberto, >From the link in your previous post I presume that you're working with deal.II 8.4.1? The feature that I've referred to was introduced in version 8.5.0. In fact, I see now that the latest version of step-33

Re: [deal.II] Re: Post-processing: how can the method compute_derived_quantities_vector be informed about cell->user_pointer() ?

2017-08-18 Thread Alberto Salvadori
Thank you Jean-Paul. >From the CommonInputs class , I understand that I can retrieve a pointer to the current cell by using this instruction, provided that the right DoFHandler is passed: const

Re: [deal.II] Combining Taylor-Hood and Raviart Thomas spaces with hp::FECollection

2017-08-18 Thread Eldar Khattatov
It tries to compare FE_RaviartThomas. This element indeed does not implement compare_for_face_domination() function, so I tried using FE_RaviartThomasNodal instead, as it provides an implementation for this function. Unfortunately, from what I understood from the implementation in RT_Nodal, it

[deal.II] Iterate over cell centers

2017-08-18 Thread Nitish Anand
Hello, I am new to deal-ii and for my application, I wish to iterate over all the cell centers. Should be somewhere here.. for (typename Triangulation::active_cell_iterator cell=triangulation.begin_active(); cell!=triangulation.end(); ++cell) for (unsigned int

[deal.II] Re: Post-processing: how can the method compute_derived_quantities_vector be informed about cell->user_pointer() ?

2017-08-18 Thread Jean-Paul Pelteret
Dear Alberto, It looks like one can already do this, although its somewhat obscurely documented. Here's a link to the documentation of the CommonInputs class , wherein you can find a documented

[deal.II] Post-processing: how can the method compute_derived_quantities_vector be informed about cell->user_pointer() ?

2017-08-18 Thread Alberto Salvadori
Dear all, I have been studying step-32 and I have found the class Postprocessor nice and effective. It is my understanding that the method compute_derived_quantities_vector within the class operates at a call level, i.e. that beyond the hood the class Postprocessor implements loops over the

Re: [deal.II] constraint around hole / equivalent node

2017-08-18 Thread Jean-Paul Pelteret
Dear Tuanny, There is no way to do this when reading in from a mesh file. You can, however, add this constraint manually. See this post https://groups.google.com/forum/#!searchin/dealii/vertex_dof_index%7Csort:relevance/dealii/8fUwabkznaU/VlTERBo-GQAJ and other post that reference

Re: [deal.II] constraint around hole / equivalent node

2017-08-18 Thread Tuanny Cajuhi
Hi Wolfgang, thank you for the answers! >> Currently I am just using >> ​​ >> set_all_boundary_ids and set_manifold_id to identify the nodes around the >> hole. Is there a way to specify the equivalent node (the node in the middle >> related to the constrained nodes) in each hole and apply the

Re: [deal.II] Re: Reading Abaqus boundary conditions

2017-08-18 Thread Jean-Paul Pelteret
Hi Jie, > That should be the way to do it. I don't know whether our Abaqus reader > actually reads boundary values, though. You may have to take a look at the > source code. > Yes it does, but the boundary ID's must be prefixed. It looks like you have to name the surfaces > SS or >