Sensitivity of the interpretation of the experimental ion thermal diffusivity to the determination of the ion conductive heat flux

Journal Article · Tue Apr 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4873385· OSTI ID:22253030

Stacey, W. M. ^[1]

---

1. Georgia Tech Fusion Research Center, Atlanta, Georgia 30332 (United States)

A moments equation formalism for the interpretation of the experimental ion thermal diffusivity from experimental data is used to determine the radial ion thermal conduction flux that must be used to interpret the measured data. It is shown that the total ion energy flux must be corrected for thermal and rotational energy convection, for the work done by the flowing plasma against the pressure and viscosity, and for ion orbit loss of particles and energy, and expressions are presented for these corrections. Each of these factors is shown to have a significant effect on the interpreted ion thermal diffusivity in a representative DIII-D [J. Luxon, Nucl. Fusion 42, 614 (2002)] discharge.

• OSTI ID: 22253030
• Journal Information: Physics of Plasmas, Vol. 21, Issue 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CONVECTION
CORRECTIONS
DOUBLET-3 DEVICE
EQUATIONS
HEAT FLUX
IONS
PLASMA
SENSITIVITY
THERMAL CONDUCTION
THERMAL DIFFUSIVITY