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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