RT Journal Article ID 649dcbe405993145 A1 Kenjeres, Sasa T1 Hybrid Simulations of Two-Way Coupled Turbulent Magnetohydrodynamic Flows JF International Journal for Multiscale Computational Engineering JO JMC YR 2009 FD 2009-11-10 VO 7 IS 6 SP 545 OP 558 K1 turbulence K1 magnetohydrodynamics K1 electromagnetic fields K1 T-RANS K1 DNS K1 magnetic induction K1 hybrid method K1 two-way coupling K1 magnetic dynamo AB We have applied a hybrid approach that combines the transient Reynolds-averaged Navier-Stokes (T-RANS) method for velocity and hydrodynamical turbulence with a direct numerical solving (DNS) of the magnetic induction equation for two-way coupled turbulent magnetohydrodynamic (MHD) flows. An originally developed electromagnetically extended two-equations (k-) eddy-viscosity-based model was used for the hydrodynamical turbulence closure. The validation of the hybrid approach was performed by simulating the Riga-dynamo experimental setup, which is characterized by an intermediate value of the magnetic Reynolds number (Rem 20) and a very high value of the hydrodynamical Reynolds number (Re 3.5 106). Numerical simulations provided all general features of the magnetic saturation regime with the frequency and amplitude of the generated magnetic field in good agreement with available experiments. PB Begell House LK https://www.dl.begellhouse.com/journals/61fd1b191cf7e96f,042e955841389759,649dcbe405993145.html