Re: [deal.II] ABOUT THE DEFINITION OF RESIDUAL IN STEP-31

2019-10-22 Thread Xiang Sun
Hi, Wolfgang, Thank you for your reply. I am learning dealii to build up a geothermal model, which includes a Laplace equation and a heat transfer considering both convection and diffusion. The Laplace equation describes a pressure distibution in a site with several wellbores. The heat transfer

Re: [deal.II] ABOUT THE DEFINITION OF RESIDUAL IN STEP-31

2019-10-22 Thread Wolfgang Bangerth
On 10/22/19 10:41 AM, Xiang Sun wrote: > > In step-31, why did you define the residual by multiplying T^(a-1)? What does > "a" mean? Thank you very much. I assume you mean here? https://dealii.org/developer/doxygen/deal.II/step_31.html#Stabilizationweakformandspacediscretizationforthetemperature

[deal.II] Re: How to use CellId class

2019-10-22 Thread Konrad Simon
Hi Zhidong, On Monday, October 21, 2019 at 1:42:30 AM UTC+2, Zhidong Brian Zhang wrote: > > Thank you very much for your prompt reply, Konrad! > > My confusion is the output of cell->id(), for example, > 0_3:000 > 0_3:200 > 0_3:003 > 0_3:006 > 0_3:406 > 0_3:606 > 0_3:206 > 0_3:007 > 0_3:407 > 0_3:

[deal.II] ABOUT THE DEFINITION OF RESIDUAL IN STEP-31

2019-10-22 Thread Xiang Sun
Hi, In step-31, why did you define the residual by multiplying T^(a-1)? What does "a" mean? Thank you very much. Best, Xiang -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this

[deal.II] Re: Docker MPI

2019-10-22 Thread Bruno Turcksin
Doug, You are using an image build using spack so everything is installed using spack instead of the package manager. If you type `spack find` inside a container, you will see that mpich is installed. Best, Bruno On Monday, October 21, 2019 at 9:53:36 PM UTC-4, Doug Shi-Dong wrote: > > Hello