[Libmesh-users] Unusual results of transient RB with 7 parameters

2018-02-27 Thread Gauvain
Hi all, I am trying to make a transient thermoelastic RB model. Both Internal heat flux and external heat exchange described by Newton's law of cooling(Robin boundary condition) are considered. It works well when the three thermal conditions (heat flux, heat transfer coefficient and ambient temper

Re: [Libmesh-users] Unusual results of transient RB with 7 parameters

2018-02-27 Thread Gauvain
+08:00 David Knezevic : > On Tue, Feb 27, 2018 at 4:03 AM, 吴家桦Gauvain > wrote: > >> Hi all, >> >> I am trying to make a transient thermoelastic RB model. Both Internal heat >> flux and external heat exchange described by Newton's law of cooling(Robin >>

Re: [Libmesh-users] Unusual results of transient RB with 7 parameters

2018-02-27 Thread Gauvain
Still a long way to go... Would you please tell me how to view the "truth solve" solution? Gauvain 2018-02-27 22:00 GMT+08:00 David Knezevic : > On Tue, Feb 27, 2018 at 8:55 AM, 吴家桦Gauvain > wrote: > >> Thanks for replying. >> >> I did omit the inertia

Re: [Libmesh-users] Unusual results of transient RB with 7 parameters

2018-03-01 Thread Gauvain
I solve with truth_solve and find the result is also bizarre, which is the same as the previous ones. I may have to check the matrix assembly. Thank you so much for your help. Gauvain 2018-02-28 0:44 GMT+08:00 David Knezevic : > On Tue, Feb 27, 2018 at 9:48 AM, 吴家桦Gauvain > wrote: > &

[Libmesh-users] Question regarding the algorithm used in TransientRBSystem

2018-03-17 Thread Gauvain
Hi all, In order to know the details about the POD-Greedy algorithm implemented in TransientRBSystem for reduced basis construction, I referred to the paper *B. Haasdonk, M. Ohlberger, Reduced basis method for finite volume approximations of parametrized evolution equations, M2AN (Math. Model. Nu

[Libmesh-users] Ways to modify order of Gaussian quadrature in reduced basis model

2018-04-09 Thread Gauvain
Hello, I've been working on reduced basis problems, in particular the reduced_basis ex3. To improve the accuracy of integration of an exponential function, I want to set a high order for the Gaussian quadrature rule. However, I found that the order of quadrature was decided by the FE_Type object a

Re: [Libmesh-users] Ways to modify order of Gaussian quadrature in reduced basis model

2018-04-09 Thread Gauvain
Thanks a lot for your prompt response and I figure out how to do it. 2018-04-10 1:10 GMT+08:00 David Knezevic : > On Mon, Apr 9, 2018 at 12:22 PM, 吴家桦Gauvain > wrote: > >> Hello, >> >> I've been working on reduced basis problems, in particular the >> redu