Upload
earl-boyd
View
217
Download
0
Embed Size (px)
Citation preview
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 ?