Simulation of the scrape-off layer plasma during a disruption
Conference
·
OSTI ID:372662
- Lawrence Livermore National Lab., CA (United States)
- General Atomics, San Diego, CA (United States)
The evolution of the scrape-off layer (SOL) during a disruption in the DIII-D tokamak is modeled using the 2-D UEDGE transport code. The focus is on the thermal quench phase when most of the energy content of the discharge is rapidly transported across the magnetic separatrix where it then flows to material surfaces or is radiated. Comparisons between the simulation and an experiment on the DIII-D tokamak are made with the heat flux to the divertor plate, and temperature and density profiles at the SOL midplane. The temporal response of the separate electron and ion heat-flux components to the divertor plate is calculated. The sensitivity of the solution to assumptions of electron heat-flux models and impurity radiation is investigated.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States); General Atomics, San Diego, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48; AC03-89ER51114
- OSTI ID:
- 372662
- Report Number(s):
- UCRL-JC--122529; CONF-960569--10; ON: DE96050357
- Country of Publication:
- United States
- Language:
- English
Similar Records
UEDGE and DEGAS modeling of the DIII-D scrape-off layer plasma
Scrape-off layer modeling of radiative divertor and high heat flux experiments on D III-D
Scrape-off layer modeling of radiative divertor and high heat flux experiments on D III-D
Conference
·
Sun May 01 00:00:00 EDT 1994
·
OSTI ID:10196607
Scrape-off layer modeling of radiative divertor and high heat flux experiments on D III-D
Conference
·
Wed Jul 01 00:00:00 EDT 1992
·
OSTI ID:10149109
Scrape-off layer modeling of radiative divertor and high heat flux experiments on D III-D
Conference
·
Tue Dec 31 23:00:00 EST 1991
·
OSTI ID:5187378