# TRANSP Tests Of TGLF and Predictions For ITER

## Abstract

Gyro kinetic simulations of turbulence capture some of the features observed in transport, fluctuations, and correlations measured in tokamak plasmas. These codes calculations are CPU intensive, and are not practical for incorporation in present time-dependant transport codes, so reduced models based on these gyro kinetic codes are being used. An example is the TGLF model [1] which is a quasilinear gyrofluid model calibrated to nonlinear results from the GYRO code [2]. Recently TGLF has been incorporated into TRANSP. Analysis of experimental data using TRANSP with such models provides fundamental understanding of turbulent transport. Predictions of ITER performance with various plasma scenarios using such models are useful for optimizing design and for exposing issues that can be addressed in present experiments and theory. For instance, which combinations of heating, torquing, and current drive are optimal. Another application is for nuclear licensing (e.g. system integrity, neutron rates). Others are generating inputs for design of diagnostic systems and for theoretical studies. An example of the later is Alfv´en Eigenmode and AE-induced loss of fast ions. The beam ion distribution can either enhance or reduce the alpha pressure drive of the AE instability. The AE instability can cause dangerous amounts of fast ion losses,more »

- Authors:

- Publication Date:

- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

- Sponsoring Org.:
- USDOE Office of Science (SC)

- OSTI Identifier:
- 1128927

- Report Number(s):
- PPPL-5000

- DOE Contract Number:
- DE-ACO2-09CH11466

- Resource Type:
- Conference

- Resource Relation:
- Conference: EPS Expo, Finland (June 2013)

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ITER, TRANSP

### Citation Formats

```
none,, Budny, Robert, and Yuan, Xingqiu.
```*TRANSP Tests Of TGLF and Predictions For ITER*. United States: N. p., 2014.
Web.

```
none,, Budny, Robert, & Yuan, Xingqiu.
```*TRANSP Tests Of TGLF and Predictions For ITER*. United States.

```
none,, Budny, Robert, and Yuan, Xingqiu. Wed .
"TRANSP Tests Of TGLF and Predictions For ITER". United States. https://www.osti.gov/servlets/purl/1128927.
```

```
@article{osti_1128927,
```

title = {TRANSP Tests Of TGLF and Predictions For ITER},

author = {none, and Budny, Robert and Yuan, Xingqiu},

abstractNote = {Gyro kinetic simulations of turbulence capture some of the features observed in transport, fluctuations, and correlations measured in tokamak plasmas. These codes calculations are CPU intensive, and are not practical for incorporation in present time-dependant transport codes, so reduced models based on these gyro kinetic codes are being used. An example is the TGLF model [1] which is a quasilinear gyrofluid model calibrated to nonlinear results from the GYRO code [2]. Recently TGLF has been incorporated into TRANSP. Analysis of experimental data using TRANSP with such models provides fundamental understanding of turbulent transport. Predictions of ITER performance with various plasma scenarios using such models are useful for optimizing design and for exposing issues that can be addressed in present experiments and theory. For instance, which combinations of heating, torquing, and current drive are optimal. Another application is for nuclear licensing (e.g. system integrity, neutron rates). Others are generating inputs for design of diagnostic systems and for theoretical studies. An example of the later is Alfv´en Eigenmode and AE-induced loss of fast ions. The beam ion distribution can either enhance or reduce the alpha pressure drive of the AE instability. The AE instability can cause dangerous amounts of fast ion losses, as was seen in TFTR.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {2014},

month = {2}

}