GYRO Simulations of Core Momentum Transport in DIII-D and JET Plasmas.

Budny, R. V. ; Waltz, R. E.

Technical Information Center Oak Ridge Tennessee

关键词: Doublet-3 devices;    Plasma confinement;    Simulation;    Computer codes;    Gyrokinetic code;   

RP-ID  :  DE2005841241

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Momentum, energy, and particle transport in DIII-D and JET ELMy H-mode plasmas is simulated with GYRO and compared with measurements analyzed using TRANSP. The simulated transport depends sensitively on the nabla(T(sub)i) turbulence drive and the nabla(E(sub)r) turbulence suppression inputs. With their nominal values indicated by measurements, the simulations over-predict the momentum and energy transport in the DIII-D plasmas, and under-predict in the JET plasmas. Reducing (nabla(T(sub)i)) and increasing (nabla(E(sub)r)) by up to 15% leads to approximate agreement (within a factor of two) for the DIII-D cases. For the JET cases, increasing (nabla(T(sub)i)) or reducing (nabla(E(sub)r)) results in approximate agreement for the energy flow, but the ratio of the simulated energy and momentum flows remains higher than measurements by a factor of 2-4.