Poloidal rotation, density asymmetries and momentum confinement in tokamak experiments
Poloidal rotation speeds and density asymmetries are calculated for the deuterium and dominant carbon (oxygen) impurity ions in discharges in ASDEX, DIII, ISX-B, JET, and TFTR for which {upsilon}{sub {phi}} {approximately} {upsilon}{sub th} for the ions. These poloidal rotation speeds and density asymmetries are used to evaluate the neoclassical gyroviscous model for the momentum confinement time. The rather good agreement with experimental momentum confinement times obtained over this wide range of plasma parameters provides a measure of confidence in the calculated density asymmetries and poloidal rotation, as well as arguing for a neoclassical explanation for momentum confinement in tokamaks.
- Research Organization:
- Georgia Inst. of Tech., Atlanta, GA (United States). Fusion Research Center
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG05-87ER51112
- OSTI ID:
- 10191982
- Report Number(s):
- GTFR--103; ON: DE93002319
- Country of Publication:
- United States
- Language:
- English
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