WPI: Workshop 2016

Wolfgang Pauli Institute, Vienna

9th Plasma Kinetics Working Group Meeting
July 25-Aug 5, 2016

Responsible Organisers: A. Schekochihin, M. Barnes, F. Parra (Oxford), M. Kunz (Princeton), N. Loureiro (MIT)

PROJECTS:

High-beta plasma dynamics
Kinetic MRI
Kinetic reconnection
Microinstabilities/transport
Phase mixing
Plasma dynamo

Edge/SOL
GK for stellarators
Intrinsic rotation
Transport optimisation
Turbulence (in tokamaks)

If you know exactly what you are going to do, what is the point of doing it? Pablo Picasso

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. Job's a good'un. Ian Abel
Let us not jump in front of the bandwagon! Anonymous
It's not the triviality, it's the emptiness of it that bothers me. Bryan Taylor

It is better to be roughly right than precisely wrong. Maynard Keynes

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
For the sake of fairness, let me mention that some people have objections to this, none of which are particularly valid. Chris Chen
Yes, Steve, you have always known what we have only just figured out. Alfred Mallet
This is more or less right. Perhaps less. Alfred Mallet
You go ahead with your argument. I'll think. Steve Cowley
Too simple? At the end of my talk, you will beg for simplicity! Andrey Beresnyak
The point is not the point! Anonymous
This is why I am presenting this here and nowhere else: nothing is solved! Ian Abel
This calculation is not intellectual masturbation: there's no orgasm. Anonymous
There are many big Buts here... I like big Buts. Anonymous
Previous studies of this problem have been either unsatisfactory or limited in scope.---What is the difference between these?---This means either wrong or irrelevant.
Anatoly Spitkovsky, Michael Meddvedev and Steve Cowley (in conversation)
I don't give a damn about astrophysics, explain to me what is going on. Anatoly Spitkovsky

Invited Participants

Name	Affiliation	Wk 1 Fusion	Wk 2 Astro	Projects	Seminar Title	Background Reading	Download
Ian Abel	Princeton	23-29*		Edge Transport optimisation Turbulence	Sensitivity (to input parameters) calculations in gyrokinetics	---	pdf
Toby Adkins	Oxford	arr 24	lv 5	Phase mixing	see Schekochihin-2	---	---
Arturo Alonso	CIEMAT	24-29		GK for stellarators	---	---	---
Justin Ball	Oxford --->EPFL	24-30		Intrinsic rotation Transport optimisation	Up-down asymmetric tokamaks	arXiv:1607.06387 +copy of DPhil thesis on request	pdf
Michael Barnes	Oxford	24-29		GK for stellarators Intrinsic rotation Transport optimisation Turbulence	---	---	---
William Bethune	Grenoble		31-5	Kinetic MRI	Non-ideal MRI in protoplanetary disks (20 min)		pdf
Archie Bott	Oxford		31-5	Plasma dynamo	Dynamo on Omega laser and kinetic problems of proton radiography	preprint available soon	pdf
Ivan Calvo	CIEMAT	24-29		GK for stellarators	The effect of tangential drifts on neoclassical transport in stellarators close to omnigeneity (35 min)	arXiv:1610.06016	pdf
Peter Catto	MIT	arr 23	lv 4	Edge GK for stellarators Intrinsic rotation Kinetic MRI	---	---	---
Jonathan Citrin	CEA --->DIFFER	24-30*		Transport optimisation Turbulence	1. Comparison between measured and predicted turbulence frequency spectra in ITG and TEM regimes		pdf
Jonathan Citrin	CEA --->DIFFER	24-30*		Transport optimisation Turbulence	2. Multi-channel flux-driven quasilinear turbulent transport prediction over many confinement times		pdf
Steve Cowley	U.K.A.E.A. --->Oxford		30-3	High-beta dynamics Microinstabilities/transport Phase mixing Plasma dynamo	Stability of the Chapman-Enskog solution in a weakly collisional plasma	---	pdf on request
Paul Dellar	Oxford	arr 28	lv 7	Phase mixing	---	---	---
Alessandro Geraldini	Oxford	24-30		Edge/SOL	Kinetic theory of ions in the magnetic presheath (30 min)	PoP 5, 808 (1998) PoP 1, 552 (1994)	pdf
Greg Hammett	Princeton	arr 24	lv 2	High-beta dynamics Edge/SOL Phase mixing Transport optimisation	5D turbulence simulations with Gkeyll, in the presence of open field lines and sheath boundary conditions, in a Torpex/helimak helical model of a SOL		pdf on request
Edmund Highcock	Oxford --->Chalmers	24-31		Phase mixing Transport optimisation Turbulence	Optimistically optimising optimisation: the story so far… (and results!)	---	pdf on request
Rogerio Jorge	IST Lisbon & EPFL	24-29		Edge/SOL	see Ricci	---	---
Sergey Komarov	MPA Garching --->Princeton		30-7	Microinstabilities/transport	Cosmic ray diffusion in mirror fluctuations	MNRAS 460, 467 (2016)	pptx
Matt Kunz	Princeton	arr 27	lv 5	High-beta dynamics Kinetic MRI Kinetic reconnection Microinstabilities/transport Plasma dynamo	1. Kinetic MRI turbulence 2. Kinetic solar-wind turbulence	---	pdf on request (maybe)
Geoffroy Lesur	Grenoble		30-5	Kinetic MRI	The stability of magnetised vortices in protoplanetary discs		pdf
Nuno Loureiro	MIT	arr 26	lv 4	Kinetic reconnection Phase mixing Turbulence	The onset of magnetic reconnection	PRL 116, 105003 (2016)	pdf
Michael Medvedev	Kansas		31-6	Microinstabilities/transport	Thermal conductivity and effective collisionality of astrophysical plasmas	JPP 82, 905820207 (2016) JPP 82, 305820201 (2016)	pdf on request
Romain Meyrand	Berkeley	arr 29	lv 5	Phase mixing	---	---	---
Felix Parra Diaz	Oxford	24-29		Edge/SOL GK for stellarators Intrinsic rotation Transport optimisation Turbulence	see Geraldini & Ball	---	---
Istvan Pusztai	Chalmers	22-30*		Edge Transport optimisation Turbulence	1. Neoclassical transport in the pedestal in the presence of non-trace impurities	arXiv:1603.00688	pdf
					[2. Turbulent transport of ICRH heated minorities vs. alpha particles]	arXiv:1602.06826	---
					3. Momentum transport due to neutrals in the edge (15 min)	arXiv:1604.08028	pdf
Paolo Ricci	EPFL	25-29*		Edge/SOL	SOL physics at EPFL	JCP 315, 388 (2016) NF 55, 123014 (2015) PoP 20, 010702 (2013) JPP 81, 435810202 (2015) EPFL reprints	pdf pptx (with movies)
Francois Rincon	Toulouse		1-6	Kinetic MRI Microinstabilities/transport Plasma dynamo	---	---	---
Gareth Roberg-Clark	Maryland		31-6	Microinstabilities/transport	Suppression of electron thermal conduction in high-beta plasma	arXiv:1606.05261	pdf
Alex Schekochihin	Oxford	arr 24	lv 5	High-beta dynamics Microinstabilities/transport Phase mixing Plasma dynamo Turbulence	1. Some updates on ion- and electron-scale turbulence in MAST	arXiv:1607.06752 arXiv:1607.08173	see preprints
Alex Schekochihin	Oxford	arr 24	lv 5		2. Phase-space turbulence in 5D (followed by update on phase-space turbulence in 2D --- ongoing project with Toby Adkins)	ApJS 182, 310 (2009) (sec 7.12) JPP 82, 905820212 (2016) PoP 23, 070703 (2016)	pdf
Lorenzo Sironi	Harvard --->Columbia		1-6	Kinetic MRI Kinetic reconnection Microinstabilities/transport	Magnetic reconnection in relativistic astrophysical jets (45 min)	arXiv:1605.02071 MNRAS 450, 183 (2015)	pdf
Denis St-Onge	Princeton	arr 24	lv 6	Plasma dynamo Turbulence	1. Dimits shift in one- and two-field models	arXiv:1503.06457	pdf
Denis St-Onge	Princeton	arr 24	lv 6	Plasma dynamo Turbulence	2. Hybrid PIC simulations of plasma dynamo	PNAS 113, 3950 (2016)	---
Anatoly Spitkovsky	Princeton		1-5	Microinstabilities/transport Plasma dynamo	Kinetics of cosmic ray-driven instabilities and winds	MNRAS 434, 2209 (2013)	---
Jonathan Squire	Caltech		30-5	High-beta dynamics Kinetic MRI Plasma dynamo	Amplitude limits on Alfvénic perturbations in weakly magnetized low-collisionality plasmas	arXiv:1605.02759	pdf
Jim Stone	Princeton		1-6*	High-beta dynamics Kinetic MRI	Reconnection in shearing box simulations of the MRI	---	---
Marek Strumik	Oxford		31-6*	High-beta dynamics Plasma dynamo	CGL dynamics and beta limits on pressure anisotropies and fluctuations in the solar wind	arXiv:1607.06637 +another preprint available soon	pdf on request
Jose Luis Velasco	CIEMAT	24-29		GK for stellarators	---	---	---

Timetable

WEEK 1

Monday 25 July	Tuesday 26 July	Wednesday 27 July	Thursday 28 July	Friday 29 July
9:30 Coffee 9:45 Welcome 10:00 Self-introductions JPP Focus on Fusion	9:30 Coffee	9:30 Coffee	9:30 Coffee	9:30 Coffee
EDGE 10:30 Pusztai-3, 1	SOL 10:00 Ricci	STELLARATORS 10:00 Calvo TURBULENCE 11:00 Citrin-1	TURBULENCE 10:00 Schekochihin-1	UP-DOWN ASYMMETRY 10:00 Ball
Lunch/work/play	Lunch/work/play	Lunch/work/play	Lunch/work/play	Lunch/work/play
16:00 Coffee	16:00 Coffee	16:00 Coffee	16:00 Coffee	16:00 Coffee
TRANSPORT OPTIMISATION 16:00 Highcock 17:00 Citrin-2	SOL 16:00 Geraldini 17:00 Hammett	TURBULENCE 17:00 St-Onge-1	TURBULENCE 17:00 Abel	Work/play

WEEK 2

Monday 1 Aug	Tuesday 2 Aug	Wednesday 3 Aug	Thursday 4 Aug	Friday 5 Aug
9:30 Coffee 9:45 Welcome 10:00 Self-introductions JPP Editors' Picks	9:30 Coffee	9:30 Coffee	9:30 Coffee	9:30 Coffee
HIGH-BETA DYNAMICS 10:30 Squire 11:30 Strumik	PLASMA DYNAMO 10:00 Bott TRANSPORT 11:00 Medvedev	NON-IDEAL MRI 10:00 Bethune CR INSTABILITIES 11:00 Spitkovsky	CR DIFFUSION 10:00 Komarov	NON-IDEAL MRI/VORTICES 10:00 Lesur PHASE MIXING 11:00 Schekochihin-2
Lunch/work/play	Lunch/work/play	Lunch/work/play	Lunch/work/play	Lunch/work/play
16:00 Coffee	16:00 Coffee	16:00 Coffee	16:00 Coffee	16:00 Coffee
KIN. MRI/TURBULENCE 16:00 Kunz-1,2 PLASMA DYNAMO 17:00 St-Onge-2 (& Kunz)	TRANSPORT & STABILITY 16:00 Roberg-Clark 16:30 Cowley	RECONNECTION 16:00 Sironi 17:00 Loureiro	MRI/TURBULENCE 17:00 Stone (informal discussion)	Work/play

Logistics

The workshop will be held at
Wolfgang Pauli Institute, Faculty of Mathematics, University of Vienna,
Oskar-Morgenstern-Platz 1, 1090 Vienna, Austria
All seminars are in Seminar Room 08.135 (8th floor)
Wi-fi: username: wpauli, pwd: vienna

Hotels: Deutschmeister, Pension Ani-Falstaff
Hotel with AC: Harmonie (comes at a moderate additional expense to you)
Please contact Mr Thomas Eisenhut (thomas.eisenhut at univie dot ac dot at) to arrange accommodation

City-airport train
Vienna information
COFFEE

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