Pauli

Wolfgang Pauli Institute, Vienna

Thematic Programme
FUSION and TURBULENCE

6th Gyrokinetics Working Group Meeting

  18-29 March 2013

Responsible Organiser: A. Schekochihin (Oxford)
SOC: M. Barnes, P. Catto, F. Parra (MIT),
S. Cowley (Culham), W. Dorland (Maryland), G. Hammett (Princeton), F. Jenko (IPP Garching), N. Loureiro (IST Lisbon)



Lady with dog
INTEREST
AREAS

  1. IT: Ion-scale turbulence Barnes, Citrin & Highcock
  2. ET: Electron-scale turbulence Colyer & Told
  3. AT: Alpha particles Abel, Loureiro & Wilkie
  4. EM: Electromagnetic turbulence Hatch, Loureiro, & Zocco
  5. RT: Rotation Ball & Rodrigues
  6. TT: Transport Barnes, Goerler & Highcock
  7. AG: AstroGK Kanekar & Mallet
  8. ST: Stellarators Plunk & Hatch
  9. EG: Edge Landreman & Told
  10. NM: Numerical Methods Hatch, Landreman & Parker
Dog with lady


If you know exactly what you are going to do, what is the point of doing it?
Pablo Picasso
It is better to be roughly right than precisely wrong.
Maynard Keynes
Every line in your calculations ends with "=0". You are not making much progress!
Kate Hammett
We don't do the calculation because we don't know the answer, we do it because we have a conscience.
Bryan Taylor
Let's change the resolution on the Unknown.
Gabe Plunk
Let me put it differently: suppose we had a reactor...
Per Helander
Working together takes more than one person.
Bill Dorland
We can't do ultraviolence to that square bracket.
Ian Abel
Field lines are forever.
Bryan Taylor
This is not really an ill-posed problem, this is not a problem at all.
Paul Dellar
   I am just doing mathematics at the moment, but it is mathematics that has some point.
Bryan Taylor
The equivalent of God in MAST is MHD, which is global and all powerful.
Anthony Field
I've got a fishbone coming up.
Tim Horbury
We have crossed all the i's and dotted all the t's.
Ian Abel
Let's not jump in front of the bandwagon!
Anonymous
It's not the triviality, it's the emptiness of it that bothers me.
Bryan Taylor
This is a very inefficient way of achieving nothing.
François Rincon
We Hankel all the way in and then Hankel all the way out.
Joseph Parker
Friends come and go, enemies accumulate.
Peter Catto


Invited Participants


Name Affiliation IT
ET
AT
EM
RT
TT
AG
ST
EG
NM
Wk 1
Wk 2
Seminar Title
Background
Reading

Download
1
Greg Colyer Culham
x
x

x
x
x
x



17-23

ETG turbulence and transport in MAST

slides
from speaker
on request
2
Jack Connor
Culham



x

x

x


arr22
lv29
The slab ion temperature gradient mode and stochastic magnetic field transport
PRL 40, 38 (1978)
PPCF 54, 035003 (2012)
+preprint on request
from A. Zocco
pdf (1.6Mb)
3
Steve Cowley Culham
x


x

x
x



19-24

Nonlinear ballooning
see slides
slides
from speaker
on request
4
Anthony Field
Culham
x



x
x





23-29
1. Characteristics of ion-scale turbulence in the presence of a strongly sheared equilibrium flow in MAST
arXiv:1208.5970
arXiv:1211.2883

2. Numerical comparisons between BES data and NEMORB simulations


5
Alessandro Zocco Culham

x

x

x
x



arr17
25,
27-29
see Connor


6
Jonathan Citrin
DIFFER x

x
x
x
x



x
17-25

1. GK simulations of profile stiffness on JET
arXiv:1303.2217
pdf (2.7Mb)
2. Quenching linear ITG instabilities by flow
shear
preprint on request
from author
7
Tobias Goerler
IPP Garching
x
x



x



x
17-22

Issues in local and nonlocal gyrokinetic transport modeling
PoP 16, 052301 (2009)
PoP 20, 032510 (2013)
Shortfall website
slides
from speaker
on request
8
Frank Jenko IPP Garching x
x
x
x

x

x
x
x
arr20
lv28
Capitalising on a better understanding of plasma turbulence
see slides
pdf (3.8Mb)
9
Daniel Told
IPP Garching x
x



x


x

17-22

Gyrokinetic transport barrier studies using GENE
D. Told's thesis
JCP 230, 7053 (2011)
slides
from speaker
on request
10
Tom Bird
IPP Greifswald x
x

x



x


arr17
lv30
Workshop summary (with Wilkie)


1. The effect of 3D magnetic perturbations on tokamak turbulence
Nucl Fusion 53 013004 (2013)
pdf (13.8Mb)
movies
from
speaker
on request
2. Full surface gyrokinetics in stellarators
PPCF 54, 124009 (2012)
slides
from speaker
on request
11
Gabriel Plunk IPP Greifswald x
x



x
x
x



24-29
Stellarator in a box
pdf (6.8Mb)
12
Nuno Loureiro IST Lisbon
x
x
x
x





x

24-29
Alpha modelling (strategy session, with Abel)

13
Paulo Rodrigues
IST Lisbon




x






24-29
Conditions for up-down asymmetry in the core of tokamak equilibria
PoP 16, 062501 (2009)
PRL 105, 135003 (2010)

14
Ivan Calvo CIEMAT Madrid
x



x
x

x



24-30
Violation of ambipolarity due to a small deviation from quasisymmetry
PPCF 54, 115007 (2012)
slides
from speaker
on request
15
Anjor Kanekar
Maryland


x


x



arr17
lv29
Progress on the slow mode problem
ApJS 182, 310 (2009)
slides
from speaker
on request
16
George Wilkie
Maryland x
x
x
x

x



x
arr17
lv29
Discovery, characterization, and mitigation of a numerical instability associated with delta-f particle-in-cell algorithms
PoF 13, 2115 (1970)
PoP 1, 822 (1994)
Broemstrup's
thesis

pdf (530Mb)
17
Justin Ball
MIT
x
x


x
x




arr21
lv29
Intrinsic rotation in up-down asymmetric tokamaks
PoP 18, 062501 (2011)
pdf (5.9Mb)
18
Michael Barnes MIT x



x
x



x
arr20
lv29
Sign reversal of the momentum transport by non-Maxwellian equilibria
see slides
pdf (1Mb)
19
Peter Catto MIT x


x
x
x


x

arr17
lv27



20
Matt Landreman
MIT
x
x


x
x

x
x
x

24-30
Computation of pedestal and stellarator neoclassical effects using a new spectral energy grid
arXiv:1210.5289
PPCF 54, 115006 (2012)
pdf (560kb)
21
Jungpyo Lee
MIT
x
x
x
x
x
x




arr20
lv29
Turbulent momentum pinch of diamagnetic flows
arXiv:1301.4260
pdf (3.2Mb)
22
Felix Parra MIT x



x
x


x

arr20
lv29
[Cattofest lecture] Peter Catto: "Did I do that?"
see slides
pdf (940kb)
23
Istvan Pusztai
MIT
x


x

x


x

17-23

Poloidally varying equilibrium potentials and their effect on impurity peaking
arXiv:1210.3001
pdf (1.1Mb)
24
Ian Abel
Oxford
x

x
x

x




arr17  lv30
Alpha modelling (strategy session, with Loureiro)
 
25
Paul Dellar Oxford


x





x
arr16
lv29
What is known about zonal flows in GFD (summary-review)
JFM 719 165 (2013)
JAS 69 1633 (2012)

26
Michael Fox
Oxford  x
x

x
x
x




arr16
lv30
see Field-1


27
Edmund Highcock Oxford x
x



x



x
arr15
lv29
Transport modelling (strategy session)


28
Alfred Mallet
Oxford





x




24-29
Anisotropy, alignment and intermittency in RMHD turbulence
MNRAS 415, 3219 (2011)
ApJ 758, 120 (2012)
PRL 110, 025003 (2013)
slides
from speaker
on request
29
Joseph Parker
Oxford








x
17-23

Fully spectral AstroGK
JFM 664, 407 (2010)
slides
from speaker
on request
30
Alex Schekochihin Oxford x
x

x

x
x



arr17
lv29



31
Ferdinand van Wyk
Oxford
x
x

x

x



x
arr16
lv30



32
Greg Hammett Princeton


x
x
x

x
x
x
arr21
lv27
Stellarators with GS2
PoP 20, 022305 (2013)
see
reading
33
Martin Rieke
RU Bochum









x
18-21

Adaptive physics refinement in a Vlasov-Maxwell code on GPUs
R. Grauer's lecture
in Les Houches-2013

pdf (900kb)
34
David Hatch
IFS Texas
x
x

x

x

x

x
17-23

1. Electromagnetic effects on turbulent transport --- an overview of recent GENE results
PoP 20, 012307 (2013)
PRL 108, 235002 (2012)
PoP 19, 055907 (2012)
pdf (4.9Mb)
2. Results from and plans for a Hermite-based gyrokinetic DNA code PoP 20, 022108 (2013) pdf (6.7Mb)

Vegetarian

Timetable

WEEK 1

Monday 18 March
Tuesday 19 March
Wednesday 20 March
Thursday 21 March
Friday 22 March
Saturday 23 March
9:30 Coffee 9:30 Coffee 9:30 Coffee 9:30 Coffee 9:30 Coffee
10:00 Welcome
TRANSPORT/I. SCALES
[chair: Schekochihin]
10:15 Citrin-1,2
ELECTROMAGNETICS
[chair: Zocco]
10:00 Hatch-1
ELECTROMAGNETICS
[chair: Hatch]
10:00 Bird-1

TRANSPORT
11:00 Pusztai
TURBULENCE/NUMERICS
[chair: Barnes]
10:00 Jenko

TRANSPORT
11:00 Goerler
ELECTROMAGNETICS
[chair: Abel]
10:00 Cowley

12:30 Lunch
12:30 Lunch 12:30 Lunch 12:30 Lunch 12:30 Lunch
NB: Seminar room must
be evacuated for a U of Vienna
class

TRANSPORT/E. SCALES
[chair: Highcock]
14:00 Told
followed by Colyer
NUMERICS
[chair: Cowley]
14:00 Rieke
NUMERICS
[chair: Jenko]
14:00 Parker
followed by Hatch-2
14:30 U of Vienna seminar:
Norbert Mauser
(WPI Director)
QUANTUM FLUID
DYNAMICS
(all welcome!)
ROTATION
[chair: Connor]
14:00 Lee
followed by Barnes

CATTOFEST
15:30 Parra
Peter


CATTOFEST

19:30 Peter Catto's
70th
birthday dinner
at Stomach (Seegasse 26)
16:00 Coffee
16:00 Coffee 16:00 Coffee 16:00 Coffee 16:30 Coffee


TRANSPORT
16:30 Transport modelling
strategy session
(Highcock)
NUMERICS
[chair: Hammett]
16:15 Wilkie


WEEK 2

Sunday 24 March
Monday 25 March
Tuesday 26 March
Wednesday 27 March
Thursday 28 March
Friday 29 March

9:30 Coffee 9:30 Coffee 9:30 Coffee 9:30 Coffee 9:30 Coffee

ELECTROMAGNETICS
[chair: Loureiro]
10:00 Connor
I. SCALES/TRANSPORT
[chair: Schekochihin]
10:00 Field-1
TURBULENCE
[chair: Jenko]
10:00 Dellar
ASTRO
[chair: Barnes]
10:00 Mallet
followed by Kanekar
10:00 Final discussion
(involving whoever
is still there)


12:30 Lunch 12:30 Lunch 12:30 Lunch 12:30 Lunch 12:30 Lunch

ROTATION
[chair: Parra]
14:00 Ball
followed by Rodrigues
STELLARATORS
[chair: Landreman]
14:00 Plunk
followed by Hammett
STELLARATORS
[chair: Plunk]
14:00 Bird-2
followed by Calvo
I. SCALES/TRANSPORT
[chair: Parra]
14:00 Field-2

15:00: Workshop summary
(Bird & Wilkie)


16:00 Coffee 16:00 Coffee 16:00 Coffee 16:00 Coffee

NUMERICS
[chair: Hammett]
16:15 Landreman
ALPHAS
16:15 Alpha modelling
strategy session
(Abel & Loureiro)

 

Logistics

The workshop will be held in Nodrbergstr. 15 (follow directions to WPI)
Please contact Ms Sabrina Seidl (sabrina.seidl at univie dot ac dot at) to arrange accommodation
City-airport train
Vienna information
COFFEE

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