DIII-D #155196

Description

This H-mode discharge case was part of a study comparing ITER Baseline Scenario (IBS) discharges with neutral beam (NB) heating alone to otherwise identical discharges in which some of the NB power was replaced with electron cyclotron heating (ECH). Two time slices were chosen. The first time slice at 2.20s includes both NBI and ECH. The second time slice at 3.0s and has NBI only.

The major plasma parameters are Bt=1.7T, Ip=1.3MA, \(\kappa\) =1.8, and \(\delta(u,l)\) =(0.35,0.8). The first time slice at 2200ms has 3.3MW of ECH and 2.6MW of NBI. The second time slice has only 3.5MW of NBI.

Data analysis

TRANSP run E04 by B. Grierson

TRANSP statefiles:

statefile at 2200
statefile at 3000

ONETWO run at 2200ms with 101 radial grid points:

iterdb_2200 file
summary_2200

Plot of power densities from ONETWO analysis

../_images/155196_2200-qplt.png

Reviewplus time traces

../_images/155196-revplus.png

EFIT

Kinetic efits at 2200 and 3000ms:

a-file at 2200
g-file at 2200
a-file at 3000
g-file at 3000

Plot of EFIT at 2200ms

../_images/155196_2200-efit.png

Plot of EFIT at 3000ms

../_images/155196_3000-efit.png

TGYRO

TGYRO runs with TGLF09(SAT0) and EPED1-NN models:

TGYRO at 2200
TGYRO at 3000

CGYRO

Linear runs versus radius, ky=0.30:
Electrostatic, Miller equil., Suguma coll. model, n_species=2, n_theta=24, n_radial=8

Plot of gamma,omega vs rho

../_images/155196-gam,om_vs_rho.png

Publication

Grierson, B., et al, Phys. Plasmas 25, 022509 (2018).

Journal paper hyperlink