An extended diffusive model for calculating thermal diffusivity from single monopole tokamak heat pulse propagation [electronic resource].
- Published:
- Washington, D.C : United States. Dept. of Energy. Office of Energy Research, 1990.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- Pages: (31 pages) : digital, PDF file
- Additional Creators:
- Lawrence Livermore National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- The problem of deducing χ{sub e} from measurements of the propagation of a monopole heatpulse is considered. An extended diffusive model, which takes into account perturbed sources and sinks is extended to the case of a monopole heat input. χ{sub e} is expressed as a function of two observables, the heat pulse velocity and the radial damping rate. Two simple expressions valid for two different ranges of the radius of the poloidal waist of the beam power profile are given. The expressions are valid in the heat pulse measurement region, extending radially 0.05a beyond the beam power waist to near 0.6a. The inferred χ{sub e} is a local value, not an average value of the radial χ{sub e} profile. 7 refs., 6 figs., 1 tab.
- Report Numbers:
- E 1.99:ucrl-id-103119
ucrl-id-103119 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
02/01/1990.
"ucrl-id-103119"
"DE90007958"
Marinak, M. - Funding Information:
- W-7405-ENG-48
View MARC record | catkey: 14746427