TRANSP 2297


Run Information

Run Time: t=0.14-1.0s
ICRF Module: TORIC (New nl Controls)
ICRF Power: 3MW @80MHz (Simulated)
ICRF Duration: 0.14-1.0s
LH Module: LSC
LH Power: 2.0MW @n0=2.75,4.0
LH Duration: 0.15-1.0s
Density Profile: Artificial H-mode r/a=0.5, d=5cm
Chi Modification: Yes, NKEMOD=0,-1 and TKEMOD=0.15

Noteworthy Switches: NZONES=20, LEVGEO=6(VMEC6),
QLIM0=15.0, NBOOSM=2, NJSMBOOT=2, NJSMLH=2,
NRAYSLH=50,hLH=0.002,DTMAXG=0.002
*Duplicate of 2277 with reload and newer namelist*
* Duplicate of 2279 testing lh smoothing*


Comments:

A duplicate of 2279, testing the effect of LH smoothing. It seems the poloidal diffusion equation is hard wired and this is the means to control the spreading of the profile in TRANSP. The diffusion equation usually spreads the current 'more than 4/20 zones' so this seems reasonable. This is another reason why an improved LH module is needed. For more information about the run see the input namelist.


The image below plots the total current vs time.

Integrated Current with Central Density
Legend:
Total Current: 		White
Lower Hybrid: 		Red
Ohmic Current: 		Green
Bootstrap Current: 	Blue

The figure below shows the actual power spectrum from the TRANSP output.
Power Spectrum