Turbulent transport in hydromagnetic flows
نویسندگان
چکیده
The predictive power of mean-field theory is emphasized by comparing theory with simulations under controlled conditions. The recently developed test-field method is used to extract turbulent transport coefficients both in the kinematic and the nonlinear or quasi-kinematic cases. A striking example of the quasi-kinematic method is provided by magnetic buoyancy-driven flows that produce an α effect and turbulent diffusion. PACS numbers: 91.25.Cw, 92.60.hk, 94.05.Lk, 96.50.Tf, 96.60.qd (Some figures in this article are in colour only in the electronic version.)
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