Transport Code( Thoughts, actions for

use of, linkage to PDB)

M.Yokoyama

On Use of PDB (by transport codes)

•Compatibility (readability) of 2D Ufiles checked by TASK3D(Sato), IPP (Turkin) and ASTRA (Estrada) (Apr. 09)

• NC database for transport module (specific-physics in helical systems: particularly important for transport analysis) Extension of DCOM/NNW : vacuum to finite beta, lower collisionality

(Wakasa, Yokoyama)

• Equilibrium Data equilibrium information corresponding to registered shots Some examples for W7-AS high-beta shots: 54022, 54023 (Geiger)

• triggering comments/demands/usability investigation ! (boost the discussions)• inputs from LHD high-beta talks (this afternoon)

NC database for NC module

•We should equip NC DB to be applicable to (at least) registered shots

•Moreover, DB covering a wide range of parameters are required

•Certainly not enough at one specific radius

•DCOM/NNW has been one of attempts to deliver NC DB to transport codes　　　　 (A.Wakasa et al., JJAP 46 (2007) 1157.)

•It has been extended to

•Lower collisionality (where Monte-Carlo gets so time-consuming) (M.Yokoyama)

Increased accuracy of NNW (DGN/LHD, ITC18(2008)) to be applicable to low-collisional plasmas (eg., CERC)

•finite beta equilibrium (utilizing the LHD VMEC-DB) (A.Wakasa) <> ~ 1, 2, 3 % of Rax,vac=3.75m, 3.60m NNW wrt <>, covering wide range of values

Extension towards low-collisionality, finite (training data for NNW)

10-5

10-3

10-1

101

103

105

107

10-8 10-6 10-4 10-2 100 102

r375q100b298a8020.rho050

0.00E+001.00E-033.16E-031.00E-023.16E-021.00E-01GSRAKE

D*

*

10-5

10-3

10-1

101

103

105

107

10-8 10-6 10-4 10-2 100 102

r375q100b199a8020.rho050

0.00E+001.00E-033.16E-031.00E-023.16E-021.00E-01GSRAKE

D*

*

10-5

10-3

10-1

101

103

105

107

10-8 10-6 10-4 10-2 100 102

r375q100b100a8020.rho050

0.00E+001.00E-033.16E-031.00E-023.16E-021.00E-01GSRAKE

D*

*

Rax,vac=3.75m, =0.5

b100 (~1%)

b298 (~3%)b199 (~2%)

•D* agrees in this range of •D* agrees in this range of

Extension towards low-collisionality, finite (training data for NNW)

Rax,vac=3.75m, =0.9

b100 (~1%)

b298 (~3%)b199 (~2%)

10-5

10-3

10-1

101

103

105

107

10-8 10-6 10-4 10-2 100 102

r375q100b100a8020.rho090

0.00E+001.00E-03

1.00E-02

1.00E-01GSRAKE

D*

*

10-5

10-3

10-1

101

103

105

107

10-8 10-6 10-4 10-2 100 102

r375q100b199a8020.rho090

0.00E+001.00E-033.16E-031.00E-023.16E-021.00E-01GSRAKE

D*

*

10-5

10-3

10-1

101

103

105

107

10-8 10-6 10-4 10-2 100 102

r375q100b298a8020.rho090

0.00E+001.00E-033.16E-031.00E-023.16E-021.00E-01GSRAKE

D*

*

•D*@Er=0 becomes to differ as is increased (smaller in GSRAKE, limited Bmns)

•However, D* at finite Er agrees well (can be “practically” applicable to experimental analysis)

•D*@Er=0 becomes to differ as is increased (smaller in GSRAKE, limited Bmns)

•However, D* at finite Er agrees well (can be “practically” applicable to experimental analysis)

(Modified) Transport Codes Session (CWGM4, Oct.2008)

TASK/3D (NIFS)

Heating

NC ambEr

Anomalous model

IPP

Heating

NC ambEr

Anomalous model

ASTRA (CIEMAT)

Heating

NC ambEr

Anomalous model

Benchmarking on NC

NC DBIPP (W7-AS,X): DKESNIFS (LHD): DGN/LHDOthers: ???

M.Sato Y.Turkin D.Lopez-Bruna

•Convolution for NC flux estimate•Ambipolar Er determination

PDB•Test bed for physics benchmarking•2D Ufiles

Interface to mutual DB (Sato)

2D Ufiles : accessible

equilibrium•Examples provided•Try them: whether they are enough or not ?

Benchmarking on MHD, GK

ISH-PDB: providing equilibria to codes (users)

Neoclassical transport (ICNTS)DKES, DCOM, MOCA, GSRAKE, NEO(2), VENUS-δf, PENTA,,,Boozer equilibria (.bc, .newboz, etc…)•stored in a common directory•interface fully equipped .bcSPBSC (Boozer)

MHDCAS3D, TERPSICHORE,,,•CAS3D: VMEC•TERPSICHORE: VMEC

Edge physicsEMC3/EIRENE,DEGAS,,,•EIRENE: B on (R,φ,Z): field-line trace, HINT(2)

Energetic particles GNET, DELTA5D,,,•GNET: Boozer (NEWBOZ: NIFS-Kyoto)•DELTA5D: Boozer (XBOZ; Spong) Adapting interface of ICNTS activity Turbulent transport

GKV, GENE, GS2, GOBLIN,,,•GKV: currently picked up from VMEC out (radial derivative required for global flux tube sim., later on)•GS2: VMEC out->TERPSICHORE (Boozer)->VVBAL (geometry in balloon. coor.) -> GS2

Proposal: •Survey of possible users (codes)•requests from users on equilibria•Assurance of accuracy, consensus required•Successful achievement through DB feedback

“defacto standard”

Heating&CDTRAVIS, TRECE,,,•TRAVIS: Boozer•TRECE:

Integrated/Predictive transport codesTASK/3D, IPP, ASTRA,,,•VMEC calu. frequently, or, using equilibrium DB ?

b0=1%

b0=2%b0=3%

Rax=3.60 mr/a = 0.5

Rax=3.60 mr/a = 0.9 b0=1%

b0=2%b0=3%