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CGNS Steering Committee

Telecon Minutes

6 September 2001
2:00pm Eastern Time

The meeting was called to order at 2:00pm. There were 15 attendees, as listed below. There were 2 invited guests to the telecon: Udo Tremel from Germany who has implemented a C++ interface on top of ADF that is `parallel' to the mid-level library. Marc Poinot from ONERA who has been working a Python oriented wrapper to the mid-level library.

The meeting was adjourned at 3:30pm.


   Bob Bush   Pratt & Whitney
Chris Rumsey NASA LaRC
Greg Power AEDC
Don Roberts Amtec
David Edwards Intelligent Light
Armen Darian Boeing
Todd Michal Boeing
Mark Fisher Boeing
Alan Shih Catalpa Research
Charlie Towne NASA Glenn
Diane Poirier ICEM-CFD
Kurt Weber RR-Allison
John Chawner Pointwise
Dave Schowalter Fluent
Udo Tremel EADS Germany
Marc Poinot ONERA

E-mail from Ray Cosner re ISO/STEP Status

As a reminder, the ISO/STEP fluid dynamics standard based on CGNS actually consists of four "parts", each of which is a separate document:

The most recent meeting of the ISO group responsible for the AP 237 Fluid Dynamics standard was held June 11-15 in San Francisco. During the San Francisco meeting, a page-by-page review was conducted of each of these parts, spanning four days. Since then, we have been working to update the standards documents to incorporate all comments. The update of Part 52 was completed on August 21; the other updates are expected to be completed in September. All comments from the CGNS Committee are welcomed, and if possible we will incorporate the comments in these Parts during the current update. When the current update is completed, probably in the second half of September, I will deliver all four parts to Bob Bush and ask him to distribute them to the members of this Committee.

On September 5-6, I will brief the CGNS and ISO standards to a hydrodynamics conference of the US Navy. I anticipate they will express discomfort with the absence of free surface, hydrodynamics and acoustics data provisions in the current draft of the standard. If that issue does come up, I will respond that the scope of the standard is simply limited by skill areas of the participants and by the available resources, and that we would welcome US Navy participation to define these additional needed elements.

The next ISO meeting is Sept 30 - Oct 5, in Fukuoka Japan. I plan to attend this meeting, together with Peter Wilson who is the Boeing person who is actually documenting the standard. Another page-by-page review of the fluid dynamics standard will be performed at that meeting. Following that meeting in Japan, we will again update the documentation. This update, in the October-January period, will be our last opportunity to make easy and radical changes (if desired) without needing to coordinate them with other parties participating in the ISO process.

The next ISO meeting after the Fukuoka meeting will be held Feb 25 - March 1, in Myrtle Beach, South Carolina. At this meeting, we plan to present all four Parts as "committee drafts" which is the third of six gates in the process for establishing an ISO standard. This means, the parts will be in a complete form and they are then formally offered to the worldwide ISO community for comments. Once we reach this stage, we will have to maintain a formal process of logging and responding to all comments we receive.