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Transport scaling in the collisionless‐detrapping regime in stellarators

 

作者: E. C. Crume,   K. C. Shaing,   S. P. Hirshman,   W. I. van Rij,  

 

期刊: Physics of Fluids(00319171)  (AIP Available online 1988)
卷期: Volume 31, issue 1  

页码: 11-14

 

ISSN:0031-9171

 

年代: 1988

 

DOI:10.1063/1.866559

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Stellarator transport scalings with electric field, geometry, and collision frequency in the reactor‐relevant collisionless‐detrapping regime are determined from numerical solutions of the drift kinetic equation. A new geometrical scaling, proportional to &egr;3/2trather than &egr;t&egr;1/2h, is found, where &egr;tis the inverse aspect ratio and &egr;his the helical ripple. With the new scaling, no reduction in energy confinement time is associated with large helical ripple, which provides design flexibility. Integral expressions for the particle and heat fluxes that are useful for transport simulations are given.

 

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