ARIES Documents -- Meetings ArchiveARIES Conference Call, 21 May 2009
Documented by L. Waganer
Les Waganer said he has finished the minutes for the April ARIES meeting and if any final changes are available please send them to him ASAP.
Les Waganer mentioned the next ARIES project meeting is to be held at Georgia Technology, Atlanta, GA, on August 26th (all day) and the morning of August 27th. Minami Yoda has a meeting room reserved and is working with the GT Hotel on our group arrangements. She will send out the hotel arrangements soon. Farrokh Najmabadi suggested that the topics at the next meeting might be the plans for the next project, closure of the current project efforts, and the beginning results for the new DCLL and SiC/LiPb comparison with higher fidelity edge physics and plasma-materials interaction.
ARIES Project Planning
Farrokh Najmabadi and Mark Tillack have been putting together an integrated ARIES 2010-2012 statement of work (SOW) for the team. This SOW will convey an integrated plan of what the various team organizations will contribute to the ARIES project. Farrokh sent out an outline and some preliminary organization SOW elements for review on 5/12/2009.
Farrokh said he now has all the inputs from all the ARIES organizations and is working to assemble them into a more coherent package. The difficulty is that his computer is not working and he is waiting until it becomes operational. He hopes the computer issue can be resolved this week and he can send out a better draft next week.
Chuck Kessel asked about the edge physics modeling, what is the level of detail desired, what codes might be used (for example, UEDGE), and who might run the code. Alan Turnbull said his impression from talking to several people familiar with UEDGE is that it reproduces existing discharges well but to do so requires a number of parameter adjustments to fit the data. It is not yet suitable for true predictive studies. He also pointed out that the expertise needed to run UEDGE and other edge codes does not exist within the ARIES group and would have to be provided by someone outside. Farrokh suggested there is a UCSD graduate student who could do it.
ARIES Technical Efforts
Laila El-Guebaly said that she and Les Waganer have reviewed Zoran Dragojlovic's FED paper and responded with comments and suggestions. Chuck Kessel was encouraged to also review and comment on the paper. Laila reported that Tim Bohm has documented his 3-D neutronic streaming analysis and posted the paper on the UW-Madison web site. Laila, Les, and Lee Cadwallader have finished their three NOVA chapters. Laila has been corresponding with Zoran on the design details of the DCLL blanket in the ARIES-DB configuration.
Zoran reported he has incorporated many of Laila's design details into the new code and he has run several cases for review. He is incorporating the suggested changes to the FED paper and is awaiting C. Kessel comments.
Rene Raffray noted that we are trying to have a consistent evaluation of the DCLL and the SiC/LiPb blanket configurations in a modified ARIES-AT configuration. Xueren is starting to develop designs for the DCLL blanket concept in the new ARIES configuration. He is working on the layout of the power core and the attachment of the WC shield block to the vacuum vessel with inputs from Laila and Siegfried. He will check the temperature and stresses in the WC shield block. He is also working on his SOFE paper(s).
Farrokh was concerned about how the code will handle the impurities in the plasma and plasma edge. He suggested a backwards calculation for the physics modules, but Chuck was doubtful that would work. As an alternative, Farrokh suggested a fine mesh examination around the points of interest (thought to be feasible by Chuck). Dale Meade asked about the specified (impurity?) profiles. Farrokh said that most models, including ITER, use the electron (something?) profile for the H-, -L, and VH modes.
Minami Yoda said the GT team was further investigating modified configurations of the pin-fin divertor concept shown at the April meeting.