Re: [deal.II] Re: Apply Neumann Boundary condition

2016-12-06 Thread Wolfgang Bangerth
On 12/06/2016 08:26 AM, benhour.amiria...@gmail.com wrote: Thanks very much for your help and support. Most of my problem is related to applying axisymmetry boundary condition for a curved domain. I attached my code for your consideration. According to the fact that this is my first project with

Re: [deal.II] Re: Apply Neumann Boundary condition

2016-12-06 Thread benhour . amirian66
Dear Jean, Thanks very much for your help and support. Most of my problem is related to applying axisymmetry boundary condition for a curved domain. I attached my code for your consideration. According to the fact that this is my first project with dealii, Please accept my lack of knowledge in t

Re: [deal.II] Re: Apply Neumann Boundary condition

2016-12-05 Thread Jean-Paul Pelteret
Dear Benhour, > These are 9 concepts, in 9 lines of text, all without any kind of > elaboration. > In other words, we have no real idea what you are doing, and equally > important, we have no idea what is actually wrong. When debugging problems > like yours, you need to learn to reduce thing

Re: [deal.II] Re: Apply Neumann Boundary condition

2016-12-02 Thread Wolfgang Bangerth
On 12/02/2016 09:30 AM, benhour.amiria...@gmail.com wrote: Thanks very much for your help and support. I do really appreciate your time and know you are really busy. The fact is that my code ran just for the first time step and can not solve for the other time step. when I refine the global mesh

[deal.II] Re: Apply Neumann Boundary condition

2016-12-02 Thread benhour . amirian66
Dear Jean, Thanks very much for your help and support. I do really appreciate your time and know you are really busy. The fact is that my code ran just for the first time step and can not solve for the other time step. when I refine the global mesh twice, this problem happened, however, with in

[deal.II] Re: Apply Neumann Boundary condition

2016-12-01 Thread Jean-Paul Pelteret
Dear Benhour, Thank you for taking my point heart and providing more specifics about your actual problem. For the horizontal axis, I have considered the zero displacement along > y-axis because of symmetry. Is it correct? Should I fix the center of the > circle as well? > If you don't provid

[deal.II] Re: Apply Neumann Boundary condition

2016-12-01 Thread Xin-Bo Qi
You should test your code step by step, figuring out exactly where the error occurs. And then propose a technical and accurate question here. Time is expensive, and the developers offer their kind help to us, then we should respect their time and help. 在 2016年12月2日星期五 UTC+8上午7:25:32,benhour@

[deal.II] Re: Apply Neumann Boundary condition

2016-12-01 Thread benhour . amirian66
Dear Jean, I know that this website is not the code reviewer. I want to apply Neumann boundary condition on the curved side of my domain. It should be note that the domain is symmetry. I have considered half of a circle. It would be very kind of you if you let me know whether it is applied corre

[deal.II] Re: Apply Neumann Boundary condition

2016-12-01 Thread Jean-Paul Pelteret
Dear Benhour, As I explained to someone else the day before yesterday, the point of this forum is not to provide a code review service without you having done due diligence on your s