Depletion Capabilities

[Blake Huff]

Hi All:

Is there ongoing work to extend OpenMC to include depletion capabilities? I found an old thread from 2013, but it appeared stalled (apologies if I should have added this to the old thread instead of starting a new one). I’d be willing to assist in adding the capabilities, but probably need some handholding to get started.

Thoughts?

Thanks!

v/r
Blake
stangm...@gmail.com

[Paul Romano]

Hi Blake,

Colin Josey at MIT (CCed) has been developing a package called OpenDeplete that is closely tied to OpenMC. There is still a bit of work to do but it is already looking pretty nice. I'll let Colin comment further on whether there are things that we could use help on. Thanks for offering!

Best,

Paul

[Blake Huff]

Colin:

Thanks for the information. 

I’m interested in helping on all fronts, with the goal of integrating into OpenMC and comparing to other codes. 

Given that OpenDeplete is internal to MIT, how’s the best way to proceed? 

Blake

On Mar 9, 2017, at 10:09 PM, Colin Josey <cjo...@mit.edu> wrote:

Hello,

OpenDeplete is pretty early in development.  It has two nebulous goals:
 - Allow me to test a bunch of new depletion algorithms.
 - Attempt to run as large a depletion simulation as a computer will allow.

Areas of active work (code in progress):
 - Domain decomposition of the depletion operator.
 - Improvements in the decay chain.

Areas of active discussion:
 - How to deal with energy-dependent branching ratios without using too much RAM.
 - Correctly computing energy deposition (not just using fission power).
 - Gamma heating.

Areas of minor but useful interest:
 - Modifications to OpenMC to allow an MPI intercommunicator to directly send number densities into the code / directly read out tallies, skipping disk access.
 - Methods to ensure the eigenvalue is approximately 1 at all times (critical boron / reactor control rod positioning) during the simulation at minimal cost.

If any of that interests you, let me know.  OpenDeplete is currently internal to MIT for the time being as it has a bunch of unpublished algorithms and I haven't filed the paperwork, but that should change relatively soon.

- Colin Josey

---

From: Paul Romano [paul.k...@gmail.com]
Sent: Thursday, March 09, 2017 7:53 AM
To: Blake Huff
Cc: openm...@googlegroups.com; Colin Josey
Subject: Re: Depletion Capabilities