Continental breakfast will be available in the St. Helens room at 7:30

am both days. Coffee break service will be provided at about 1:30 pm

on Saturday. Due to exhorbitant catering costs at the Westin, THERE

WILL BE NO LUNCH SERVED EITHER DAY. We'll be on our own!
 
 
 
 
 
 

MINUTES
 
 
 
 

SATURDAY, NOV. 13
 
 
 
 

M. Chu
 
 

S, Kruger
 
 

C. Sovinec
 
 

S. Plimpton
 
 

R. Dagazian
 
 

E. Held
 
 

R. Nebel
 
 

D. Schnack
 
 

T. Gianakon
 
 

A. Tarditi
 
 
 
 

8:30 am - 11:30 am
 
 

I. Presentation of APS Papers
 
 
 
 

- ALL
 
 
 
 

Good presentations!
 
 
 
 
 
 

11:30 am - 1:30 pm BREAK FOR LUNCH
 
 
 
 

1:30 PM - 2:30 PM
 
 

II.Discussion of other ongoing applications
 
 
 
 

- Rick N.
 
 
 
 

2-Fluid in RFPs:
 
 
 
 

2 -fluid effects generate background flows comparable to the flow in

the modes. The flow is sheared (no net momentum). Appears to be a

quasi-linear effect. Has found a suspicious 1/12 mode. Is it real or

is it memorex?
 
 
 
 

"We'll figure it out." - Carl S.
 
 
 
 

- Michael Kissick
 
 
 
 

Michael presented an interesting plot showing the limitations of NIMROD

woth flow. High flow and high S don't work. Some suggestions were

meade te Michael will make, like running with si_in_v=false, etc. We

all appreciate Michael's patience with us. We are committed to slving

this problem.
 
 
 
 

- Eric Held
 
 
 
 

Presented some plans for including his thesis collisionless closure for

the heat flux into NIMROD.
 
 
 
 

- Alfonso
 
 
 
 

DIII-D high-beta disruption. The straight-line grid has cured the

problem of the numerical mode with Pr=1000. With Pr=10 the bad mode

returns even at beta_n=5. We may not have the "cure" yet.
 
 
 
 
 
 

2:30 PM - 5:00 PM
 
 

II. Development
 
 
 
 

- AZTEC (Steve P.)
 
 
 
 

Good news: Fully implementd in the code.
 
 

Bad news: Can't compete with the present line preconditioners.
 
 
 
 

- Higher order elements (Carl)
 
 
 
 

Status:
 
 
 
 

- Nimset complete
 
 

- Nimplot complete
 
 

- Nimrod partially functional. Still needs
 
 

- Degenerate point
 
 

- Regularity conditions
 
 

- Parallel seaming
 
 

- Extrapolation routines
 
 

- Preconditioner development
 
 

- CFL condition
 
 

- Use of higher order definitions in diagnostics
 
 

- Functional form of rz
 
 

- Optimization
 
 

- Quad. basis definitions exist for orders 1 and 2
 
 

- Polynomial orders > 1 not implemented for tblocks
 
 
 
 

Initial tests show that biquadratic representation is much more

accurate for slab tearing mode. Need degenerate point capability to do

more realistic cases (like a tearing mode in a cylinder).
 
 
 
 

- Reset capability (Tom)
 
 
 
 

Exists in Nimset. Tom has found a clever way to search a grid to

answer the question "What cell is a point (r,z) in?". Will allow

complete re-gridding and/or resetting the polynomial order.
 
 
 
 

- Kinetic closures/particles (Scott P.)
 
 
 
 

Scott and his graduate student have made progress in the mechanics of

pushing particles in the Nimrod fields.
 
 
 
 

- Computations on tblocks (Alfonso)
 
 
 
 

Can't tell from the results presented.
 
 
 
 

- Pre-processing and web site issues (Scott K.)
 
 
 
 

Changes to Fluxgrid and the web page were described.
 
 
 
 
 
 
 
 

SUNDAY, NOVEMBER 14
 
 
 
 

8:30 am - 9:30 am
 
 

III. Other technical Issues
 
 
 
 

- Xdraw (new versions)
 
 
 
 

Scott presented Nina's results. She has done an excellent job.
 
 
 
 
 
 

9:30 am - 11:00 am
 
 

IV. Develop plans and goals for next 3 months
 
 
 
 

As a reminder, here are the goals that we set last June. Please be

prepared to report on their status.
 
 
 
 

MILESTONES
 
 
 
 

GOAL RESP. PERSON DATE COMMENTS

(11/99)
 
 
 
 

Res. wall BC. implemented Tom. G 06/00 Changed from

Scott K.
 
 

Lin. high-beta disr. pyhsics Alfonso 04/00 linear

by Sherwood
 
 

Linear vac. validated w/GA Scott K. 04/99 Ming to

get case to SK for Sherwood
 
 

Nonlinear vac. implemented Scott K. 04/00
 
 

Push particles in NIMROD fields Scott P. 04/00 drift orbits

calculated
 
 

AZTEC version Steve P. 9/99

Complete
 
 

AZTEC into current ver. Steve P. 04/00
 
 

OO/C++ structure Ahmet 11/99

???
 
 

"Sig. progress" on high order eles. Carl S. 11/99

Complete
 
 

"Fully functional" high ord. eles. Carl S. 04/99
 
 

Neo-class. paper submitted Tom G. 12/99
 
 

Begin ST studies (hel. inj.) Carl S. 11/99

Complete
 
 

2-fluid multi-hel. RFP Rick N. 04/00

Numerical problems
 
 

Compete SSPX case Alfonso 04/00

Problems w/triangles
 
 

Flow and high-S in ET J.-N. 04/00

High-S works well, flows don't
 
 

Demo. of nonlinear high-S Dalton 04/00
 
 

Formulate diamag. corrections Chris H./Jim C. 04/00
 
 
 
 
 
 

11:00 am - 11:45 am
 
 

V. Discussion of renewed "SSI" effort
 
 
 
 

11:45 am - 12:00 noon
 
 

VI. Date and location of next team meeting
 
 
 
 

Santa Fe, end of Jan. or beginning of Feb. Rick and Carl to

investigate.
 
 
 
 

VII. Adjourn