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Burning Plasma Projections Using Drift Wave Transport Models and Scalings for the H-Mode Pedestal.

DE2004821825

Publication Date	2002
Personal Author	Kinsey, J. E.; Onjun, T.; Bateman, G.; Kirtz, A.; Pankin, A.
Page Count	16
Abstract	OAK-B135 The GLF23 and Multi-Mode (MM95) transport models are used along with a model for the H-mode pedestal to predict the fusion performance for the ITER, FIRE, and IGNITOR tokamak designs. The drift-wave predictive transport models reproduce the core profiles in a wide variety of tokamak discharges, yet they differ significantly in their response to temperature gradient (stiffness). Recent gyro-kinetic simulations of ITG/TEM and ETG modes motivate the renormalization of the GLF23 model. The normalizing coefficients for the ITG/TEM modes are reduced by a factor of 3.7 while the ETG mode coefficient is increased by a factor of 4.8 in comparison with the original model. A pedestal temperature model is developed for type I ELMy H-mode plasmas based on ballooning mode stability and a theory-motivated scaling for the pedestal width. In this pedestal model, the pedestal density is proportional to the line-averaged density and the pedestal temperature is inversely related to the pedestal density.
Keywords	Thermonuclear reactors Models Scalings Flexibility Performance Plasma Renormalization Stability Temperature gradients Drift wave transport H-mode pedestal Burning plasma projections
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	General Atomics, San Diego, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200501

Burning Plasma Projections Using Drift Wave Transport Models and Scalings for the H-Mode Pedestal.

Burning Plasma Projections Using Drift Wave Transport Models and Scalings for the H-Mode Pedestal.
DE2004821825

Publication Date	2002
Personal Author	Kinsey, J. E.; Onjun, T.; Bateman, G.; Kirtz, A.; Pankin, A.
Page Count	16
Abstract	OAK-B135 The GLF23 and Multi-Mode (MM95) transport models are used along with a model for the H-mode pedestal to predict the fusion performance for the ITER, FIRE, and IGNITOR tokamak designs. The drift-wave predictive transport models reproduce the core profiles in a wide variety of tokamak discharges, yet they differ significantly in their response to temperature gradient (stiffness). Recent gyro-kinetic simulations of ITG/TEM and ETG modes motivate the renormalization of the GLF23 model. The normalizing coefficients for the ITG/TEM modes are reduced by a factor of 3.7 while the ETG mode coefficient is increased by a factor of 4.8 in comparison with the original model. A pedestal temperature model is developed for type I ELMy H-mode plasmas based on ballooning mode stability and a theory-motivated scaling for the pedestal width. In this pedestal model, the pedestal density is proportional to the line-averaged density and the pedestal temperature is inversely related to the pedestal density.
Keywords	Thermonuclear reactors Models Scalings Flexibility Performance Plasma Renormalization Stability Temperature gradients Drift wave transport H-mode pedestal Burning plasma projections
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	General Atomics, San Diego, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200501