[deal.II] Re: Step-35 Poiseuille flow in a 3D pipe

Hello David Wells, Sorry to bother you, but I have a problem about Step-35. I have posted the question a few days ago, and no one answered me, so I have to search in the mailing list and found that you have been using it a lot. I was wondering if you could help me, and the following is my

[deal.II] Output problem of DG with degree =0

Hey all, I am trying to solve a level set equation with DG. When I use degree=1, everything is ok, but when I change it to degree=0, it cannot output the results, and says: An error occurred in line <957> of file in function void dealii::DataOut_DoFData

Re: [deal.II] A bug of visualization with VISIT

Hey Prof. Bangerth, Thanks for your help again, I understand now :) Best, Jiaqi 在 2017年2月22日星期三 UTC-5下午11:58:06，Wolfgang Bangerth写道： > > On 02/22/2017 06:41 AM, Jiaqi ZHANG wrote: > > Soluiton2 is fine. For Solution1, I checked the result with MATLAB, the > > contour plo

Re: [deal.II] A bug of visualization with VISIT

triangles are aligned with the solution, > while in case 1 there are not (the domain is split in two triangle with a > common edge going from top left to bottom right). > > Best, > > Bruno > > On Wednesday, February 22, 2017 at 8:41:54 AM UTC-5, Jiaqi ZHANG wrote: >> &g

Re: [deal.II] Interpolating values of the neighbor cells in DG

s message because you are subscribed to the Google > Groups "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to dealii+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. >

Re: [deal.II] Interpolating values of the neighbor cells in DG

lii.org/ > For mailing list/forum options, see https://groups.google.com/d/ > forum/dealii?hl=en > --- > You received this message because you are subscribed to the Google Groups > "deal.II User Group" group. > To unsubscribe from this group and stop receiving emails from

Re: [deal.II] Interpolating values of the neighbor cells in DG

Thank you so much, Praveen. Your codes are really helpful. Regards, Jiaqi 2016-09-20 0:11 GMT-04:00 Praveen C <cprav...@gmail.com>: > > On Tue, Sep 20, 2016 at 9:34 AM, Jiaqi ZHANG <jqzhang2...@gmail.com> > wrote: > >> Hello Praveen, >> >> Thank you so

Re: [deal.II] Interpolating values of the neighbor cells in DG

to extend the solutions from neighbors through interpolation? I am not sure how to do that in deal.II. Thanks, Jiaqi 2016-09-19 17:36 GMT-04:00 Wolfgang Bangerth <bange...@colostate.edu>: > On 09/19/2016 03:15 PM, Jiaqi ZHANG wrote: > >> >> I was trying to get th

[deal.II] Interpolating values of the neighbor cells in DG

Dear all, I was trying to get the values of the solution polynomial in the neighbor cells in DG, for example, I want to compute [image: View the MathML source] where p_i are the solution polynomials of the neighbors, \Delta_0 is the current cell. I cannot find any function to do this in

[deal.II] obtaining solution values at any point using Quadrature< dim >::Quadrature(const Point< dim > & point)

Dear all, I was trying to write a roots finding method along cell faces in 2D, so I need to know the solution values at any point of cell faces. Is this the right way to use Quadrature < dim >:: Quadrature

Re: [deal.II] obtaining solution values at any point using Quadrature< dim >::Quadrature(const Point< dim > & point)

Got it. Thanks so much, Dr. Bangerth. Jiaqi 2016-12-16 0:06 GMT-05:00 Wolfgang Bangerth <bange...@colostate.edu>: > On 12/15/2016 06:11 PM, Jiaqi ZHANG wrote: > >> std::cout<<"testing quadrature points:\n"; >> const Point v0 = cell->vertex(0); &

[deal.II] Re: Publications based on deal.II

9991", doi = "https://doi.org/10.1016/j.jcp.2018.11.029;, url = "http://www.sciencedirect.com/science/article/pii/S0021999118307733;, author = "Jiaqi Zhang and Pengtao Yue", keywords = "Hamilton–Jacobi equation, Numerical flux, Second-derivative limiter, Weighted local proj

[deal.II] How to solve a 2D problem on the boundary in 3D simulations

Hi, I am using DGP to solve a 3D problem which requires me to first solve a 2D problem (boundary condition) on the boundary at each time step. My question is how to assemble a 2D problem on the boundary in 3D simulations. I cannot find similar tutorials to start. Do I just use shape