Magnetohydrodynamics

The Dynamo Effect of Magnetic Flux Tubes

by Mathieu Ossendrijver

M. Ossendrijver, A&A 359, 1205-1210 (2000)

The alpha-effect of toroidal fluxtubes and its application in a mean-field solar dynamo

by Mathieu Ossendrijver

M. Ossendrijver, in: M. Nunez, A. Ferriz-Mas, Proceedings of the Workshop "Stellar dynamos: nonlinearity and chaotic flows" held at Medina del Campo, Valladolid, Spain, 28-30 September 1998, ASP Conf. Series 178, 127-137 (1999)

Transport Coefficients for Solar and Stellar Dynamos

by Mathieu Ossendrijver

M. Ossendrijver, P.J. Käpylä, in: Solar Activity and its Magnetic Origin, IAU Symposium 233, Cambridge University Press, 3-8 (2006)

Approaching the solar dynamo

by Mathieu Ossendrijver

M. Ossendrijver, Adv. in Space Res. (2005)

The dynamo layer in solar‐type stars

by Mathieu Ossendrijver

M. Ossendrijver, AN 326, 166-169 (2005)

Crisis-induced intermittency due to attractor-widening in a buoyancy-driven solar dynamo

by Mathieu Ossendrijver

M. Ossendrijver, E. Covas, IJBC 13, 2327-2333 (2003)

The solar dynamo: a challenge for theory and observation

by Mathieu Ossendrijver

M. Ossendrijver, ESA SP-506, 797-804 (2002)

Grand Minima in a Buoyancy-Driven Solar Dynamo

by Mathieu Ossendrijver

M. Ossendrijver, A&A 359, 364-372 (2000)

Stochastic and Nonlinear Fluctuations in a Mean Field Dynamo

by Mathieu Ossendrijver

M.A.J.H. Ossendrijver, P. Hoyng, A&A 313, 959-970 (1996)

Identification of Kinetic Alfven Wave Turbulence in the Solar Wind

by Christopher Chen

C. S. Salem, G. G. Howes, D. Sundkvist, S. D. Bale, C. C. Chaston, C. H. K. Chen, F. S. Mozer
Astrophys. J. Lett. 745 L9 (2012)

Anisotropy in Space Plasma Turbulence: Solar Wind Observations

by Christopher Chen

T. S. Horbury, R. T. Wicks, C. H. K. Chen
Space Sci. Rev. (online first), (2011)

Ambipolar Diffusion and Drift in Computational Weakly-Ionized Plasmadynamics

by Bernard Parent

Modeling of ambipolar diffusion and drift taking place within a weakly-ionized fluid can lead to some convergence... more Modeling of ambipolar diffusion and drift taking place within a weakly-ionized fluid can lead to some convergence difficulties when the ion conservation equation and the electric field potential equation are solved consecutively. A novel formulation of the ion flow rate is proposed here that reduces the computing effort to reach convergence by a factor of 10 or more. It is shown that by recasting the ion flow rate in terms of drift and ambipolar diffusion components, the sensitivity to the electric field is reduced hence alleviating the stiffness of the system of equations and permitting significantly faster convergence. What makes the method particularly appealing is that (i) it yields faster convergence without affecting the accuracy of the converged solution and (ii) it is not restricted to specific discretization or relaxation schemes and can hence be readily implemented in existing flow solvers. Because it is developed in general form ({\it i.e.}\ applicable to a multicomponent plasma in the simultaneous presence of electric current and magnetic and electric fields), the method is notably well-suited to simulate ambipolar diffusion within ionized multi-species flow solvers and is recommended for all flowfields as long as the plasma remains weakly-ionized and quasi-neutral.

A parallel solution-adaptive scheme for ideal magnetohydrodynamics

by Quentin F. Stout

Application of homotopy perturbation method to find an analytical solution for magnetohydrodynamic flows of viscoelastic fluids in converging/diverging channels

by Mostafa Safdari Shadloo

Interpreting power anisotropy measurements in plasma turbulence

by Christopher Chen

C. H. K. Chen, R. T. Wicks, T. S. Horbury, A. A. Schekochihin
Astrophys. J. Lett. 711 L79 (2010)

Power and spectral index anisotropy of the entire inertial range of turbulence in fast solar wind

by Christopher Chen

R. T. Wicks, T. S. Horbury, C. H. K. Chen, A. A. Schekochihin
Mon. Not. R. Astron. Soc. 407 L31 (2010)

Anisotropy of Imbalanced Alfvenic Turbulence in Fast Solar Wind

by Christopher Chen

R. T. Wicks, T. S. Horbury, C. H. K. Chen, A. A. Schekochihin
Phys. Rev. Lett. 106 045001 (2011)

Anisotropy of Alfvenic Turbulence in the Solar Wind and Numerical Simulations

by Christopher Chen

C. H. K. Chen, A. Mallet, T. A. Yousef, A. A. Schekochihin, T. S. Horbury
Mon. Not. R. Astron. Soc. 415 3219 (2011)

Frame Dependence of the Electric Field Spectrum of Solar Wind Turbulence

by Christopher Chen

C. H. K. Chen, S. D. Bale, C. Salem, F. S. Mozer
Astrophys. J. Lett. 737 L41 (2011)

Finite difference solutions of MFM square duct flow with heat transfer using matlab program

by napoles d