Fueling profile sensitivities of trapped particle mode transport to TNS

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A key factor in the plasma thermal behavior is the anticipated existence of dissipative trapped particle modes. A possible scheme for controlling the strength of these modes was found. The scheme involves varying the cold fueling profile. A one dimensional multifluid transport code was used to simulate plasma behavior. A multiregime model for particle and energy transport was incorporated based on pseudoclassical, trapped electron, and trapped ion regimes used elsewhere in simulation of large tokamaks. Fueling profiles peaked toward the plasma edge may provide a means for reducing density-gradient-driven trapped particle modes, thus reducing diffusion and conduction losses. (MHR)

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Pages: 5

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Mense, A.T.; Attenberger, S.E. & Houlberg, W.A. January 1, 1977.

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Description

A key factor in the plasma thermal behavior is the anticipated existence of dissipative trapped particle modes. A possible scheme for controlling the strength of these modes was found. The scheme involves varying the cold fueling profile. A one dimensional multifluid transport code was used to simulate plasma behavior. A multiregime model for particle and energy transport was incorporated based on pseudoclassical, trapped electron, and trapped ion regimes used elsewhere in simulation of large tokamaks. Fueling profiles peaked toward the plasma edge may provide a means for reducing density-gradient-driven trapped particle modes, thus reducing diffusion and conduction losses. (MHR)

Physical Description

Pages: 5

Notes

Dep. NTIS, PC A02/MF A01.

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  • ANS winter meeting, San Francisco, CA, USA, 27 Nov 1977

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  • Report No.: CONF-771109-83
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 5153927
  • Archival Resource Key: ark:/67531/metadc1060373

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1977

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 1, 2018, 6:07 p.m.

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Mense, A.T.; Attenberger, S.E. & Houlberg, W.A. Fueling profile sensitivities of trapped particle mode transport to TNS, article, January 1, 1977; Tennessee. (digital.library.unt.edu/ark:/67531/metadc1060373/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.