Nonlinear Viscosity in the Interchangeable Module Stellarator
| Autor: | J. L. Shohet, H. Dahi, Joseph Talmadge |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Physics
Range (particle radiation) General Physics and Astronomy Mechanics Plasma law.invention Physics::Fluid Dynamics Viscosity Nonlinear system symbols.namesake Nuclear magnetic resonance Mach number Physics::Plasma Physics law Electric field symbols Astrophysics::Earth and Planetary Astrophysics Current (fluid) Stellarator |
| Zdroj: | Physical Review Letters. 80:3976-3979 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.80.3976 |
| Popis: | The experimental observation of nonlinear parallel viscosity in the Interchangeable Module Stellarator is reported. The damping of plasma flows, by poloidal viscosity and ion-neutral collisions, is determined from the dependence of the radial current on the radial electric field in the plasma. At low neutral density, the radial current drops and a jump in the radial electric field occurs at a poloidal Mach number in the range $\ensuremath{-}10$ to $\ensuremath{-}15$, in reasonable agreement with a model based on nonlinear viscosity. The nonlinearity of viscosity diminishes as the neutral density is increased. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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