High magnetic shear gain in a liquid sodium stable Couette flow experiment: a prelude to an α-Ω dynamo
The Ω phase of the liquid sodium α-Ω dynamo experiment at New Mexico Institute of Mining and Technology in cooperation with Los Alamos National Laboratory has demonstrated a high toroidal field B(ϕ) that is ≃8×B(r), where B(r) is the radial component of an applied poloidal magnetic field. This enhan...
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| Veröffentlicht in: | Physical review letters 2011-04, Vol.106 (17), p.175003-175003, Article 175003 |
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| container_title | Physical review letters |
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| creator | Colgate, Stirling A Beckley, Howard Si, Jiahe Martinic, Joe Westpfahl, David Slutz, James Westrom, Cebastian Klein, Brianna Schendel, Paul Scharle, Cletus McKinney, Travis Ginanni, Rocky Bentley, Ian Mickey, Timothy Ferrel, Regnar Li, Hui Pariev, Vladimir Finn, John |
| description | The Ω phase of the liquid sodium α-Ω dynamo experiment at New Mexico Institute of Mining and Technology in cooperation with Los Alamos National Laboratory has demonstrated a high toroidal field B(ϕ) that is ≃8×B(r), where B(r) is the radial component of an applied poloidal magnetic field. This enhanced toroidal field is produced by the rotational shear in stable Couette flow within liquid sodium at a magnetic Reynolds number Rm≃120. Small turbulence in stable Taylor-Couette flow is caused by Ekman flow at the end walls, which causes an estimated turbulence energy fraction of (δv/v)(2)∼10(-3). |
| doi_str_mv | 10.1103/PhysRevLett.106.175003 |
| format | Article |
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| source | American Physical Society Journals |
| title | High magnetic shear gain in a liquid sodium stable Couette flow experiment: a prelude to an α-Ω dynamo |
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