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

2016-09-20 Thread Jiaqi ZHANG
Thank you so much, Praveen. Your codes are really helpful. Regards, Jiaqi 2016-09-20 0:11 GMT-04:00 Praveen C : > > On Tue, Sep 20, 2016 at 9:34 AM, Jiaqi ZHANG > wrote: > >> Hello Praveen, >> >> Thank you so much. I am wondering if you could tell me which >> >> limiters you used, because if it

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

2016-09-19 Thread Praveen C
On Tue, Sep 20, 2016 at 9:34 AM, Jiaqi ZHANG wrote: > Hello Praveen, > > Thank you so much. I am wondering if you could tell me which > > limiters you used, because if it is too hard for me to implement > > this limiter, I will have to try other ones. I am a newbie to C++, > > but will try to rea

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

2016-09-19 Thread Jiaqi ZHANG
Hello Praveen, Thank you so much. I am wondering if you could tell me which limiters you used, because if it is too hard for me to implement this limiter, I will have to try other ones. I am a newbie to C++, but will try to read your codes to see if I can make it. Thanks, Jiaqi 2016-09-19 23:

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

2016-09-19 Thread Jiaqi ZHANG
Dear Prof. Bangerth, I will have to use arbitrary meshes, because I have solid particles moving in the mesh and have to refine the mesh adaptively. Later, I will need to move the mesh and even regenerate the mesh if the cells are too distorted. Best, Jiaqi 2016-09-19 23:26 GMT-04:00 Wolfg

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

2016-09-19 Thread Praveen C
Hello Jiaqi I was interested in this some years back though I didnt pursue it after some initial attempt. See this https://groups.google.com/forum/m/?hl=en-GB#!topic/dealii/gaongNBSXfY I tried writing an fespace based on FE_DGPNonparametric which does not use a mapping and the shape functions a

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

2016-09-19 Thread Wolfgang Bangerth
Jiaqi, Yes, I want to extend the solution from the neighboring cells to the current cell. I know different cells have different polynomial descriptions, but in order to apply the limiters, information from the neighbor cells is required. Is it possible to extend the solutions from neighbors thr

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

2016-09-19 Thread Jiaqi ZHANG
Dear Prof. Bangerth, Thanks for the fast reply. Yes, I want to extend the solution from the neighboring cells to the current cell. I know different cells have different polynomial descriptions, but in order to apply the limiters, information from the neighbor cells is required. Is it possible to

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

2016-09-19 Thread Wolfgang Bangerth
On 09/19/2016 03:15 PM, Jiaqi ZHANG wrote: I was trying to get the values of the solution polynomial in the neighbor cells in DG, for example, I want to compute View the MathML source where p_i are the solution polynomials of the neighbors, \Delta_0 is the current cell. I cannot find any func

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

2016-09-19 Thread Jiaqi ZHANG
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 Fini