Search found 454 matches

by Ville Valtavirta
Fri Mar 19, 2021 4:01 pm
Forum: Development
Topic: 2.1.32 - Sensitivity calculation and uncertainty propagation
Replies: 3
Views: 509

Re: 2.1.32 - Sensitivity calculation and uncertainty propagation

Hi Nicolas, we don't distribute covariance data with Serpent at the moment. Generally, NJOY can be used to produce evaluated covariance data files as Ana noted. You would still need to convert those into some format supported by Serpent, e.g. the new ASCII-form. And yes, COVERX format is the one use...
by Ville Valtavirta
Fri Feb 26, 2021 3:56 pm
Forum: Development
Topic: 2.1.32 - Sensitivity calculation and uncertainty propagation
Replies: 3
Views: 509

2.1.32 - Sensitivity calculation and uncertainty propagation

Hi everyone, the sensitivity calculation and uncertainty propagation capabilities saw some fixed bugs and minor improvements in 2.1.32. I'll try to list the main ones in this topic, and update any new features to the Serpent Wiki in the near future. We have an enthusiastic S/U community using the ca...
by Ville Valtavirta
Fri Feb 26, 2021 2:58 pm
Forum: Development
Topic: "Branching" geometry
Replies: 1
Views: 295

Re: "Branching" geometry

Hi, I think it's an interesting idea and could certainly be useful in some situations. I think adding support on such a branching geometry in the transport simulation itself might require quite extensive changes, however. I think currently the best approach to achieve something similar would be to s...
by Ville Valtavirta
Wed Feb 17, 2021 10:45 am
Forum: Users
Topic: Information about FINIX, SuperFINIX and Kraken
Replies: 2
Views: 369

Re: Information about FINIX, SuperFINIX and Kraken

Hi Christian, it is possible to use the internal coupling between Serpent and FINIX at a level of multiple rods. See e.g. this BWR assembly example . It is also true that at core level we nowadays rely on coupling with SuperFINIX in the context of the Kraken framework, which leaves Serpent free of m...
by Ville Valtavirta
Mon Jan 18, 2021 12:56 pm
Forum: Users
Topic: Material Card Syntax
Replies: 3
Views: 403

Re: Material Card Syntax

Hi,

it may be a good idea to go through the Tutorial. The nuclide identifiers are explained there along with many other input related things.

-Ville
by Ville Valtavirta
Fri Jan 15, 2021 10:26 am
Forum: Users
Topic: Serpent limits for a subcritical installation
Replies: 2
Views: 397

Re: Serpent limits for a subcritical installation

Hi, as always, I recommend doing an initial verification and validation between Serpent and some experimental measurements to assess the level of similarity in the computational model and the actual system to be modelled. That said, I think if you use the external source simulation mode for the calc...
by Ville Valtavirta
Fri Jan 08, 2021 10:56 am
Forum: Compiling and installing Serpent
Topic: Is there a significant advantage to 128 GB of RAM over 64 for depletion calculations?
Replies: 3
Views: 554

Re: Is there a significant advantage to 128 GB of RAM over 64 for depletion calculations?

Hi, the memory demand is quite case dependent so it's difficult to say anything about a specific applications without simply running some tests. Having more memory can help you fit the whole calculation in memory using one of the higher optimization modes, which will make the whole calculation faste...
by Ville Valtavirta
Thu Dec 10, 2020 6:09 pm
Forum: Users
Topic: Coupling FINIX with Serpent 2.1.31
Replies: 18
Views: 1572

Re: Coupling FINIX with Serpent 2.1.31

Thanks for the clarification. There is no such constraint. What I meant with my earlier comment is that the phenomena relevant for cladding behavior in spent fuel pool or dry cask may be very different from the phenomena that are relevant in reactor operation so the question is whether FINIX contain...
by Ville Valtavirta
Thu Dec 10, 2020 4:32 pm
Forum: Users
Topic: Coupling FINIX with Serpent 2.1.31
Replies: 18
Views: 1572

Re: Coupling FINIX with Serpent 2.1.31

I don't think I understand your question.

-Ville
by Ville Valtavirta
Thu Dec 10, 2020 2:42 pm
Forum: Users
Topic: Coupling FINIX with Serpent 2.1.31
Replies: 18
Views: 1572

Re: Coupling FINIX with Serpent 2.1.31

Thanks for explaining,

I'm not sure how well normal fuel performance code correlations are applicable to long periods on decay heat only (I guess they are mostly for operational and accident modelling), but maybe Jussi can comment further.

-Ville