# On the cross-helicity dependence of the energy spectrum in magnetohydrodynamic turbulence

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- Generation of residual energy in the turbulent solar wind. Gogoberidze, G.; Chapman, S. C.; Hnat, B. // Physics of Plasmas;Oct2012, Vol. 19 Issue 10, p102310
In situ observations of the fluctuating solar wind flow show that the energy of magnetic field fluctuations always exceeds that of the kinetic energy, and therefore the difference between the kinetic and magnetic energies, known as the residual energy, is always negative. The same behaviour is...

- Hall effect in a strong magnetic field: Direct comparisons of compressible magnetohydrodynamics and the reduced Hall magnetohydrodynamic equations. Martin, L. N.; Dmitruk, P.; Gomez, D. O. // Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p112304
In this work we numerically test a model of Hall magnetohydrodynamics in the presence of a strong mean magnetic field: the reduced Hall magnetohydrodynamic model (RHMHD) derived by [Gomez et al., Phys. Plasmas 15, 102303 (2008)] with the addition of weak compressible effects. The main advantage...

- Influence of Moving Bottom Outlet Gate on Downpull Force by FLOW3D. Khosrojerdi, Amir; Ghasemi-Panah, Bahman // AIP Conference Proceedings;9/9/2009, Vol. 1168 Issue 1, p609
In the flow around bottom outlet gate with high head in the upstream and free surface flow in down stream pressures on top and lip of gate are not in equilibrium. During moving the gate (toward up and down), flow characteristics such as pressure and downpull force are changed. In other words,...

- The effect of spectral anisotropy of fast magnetosonic turbulence on the plasma heating at the proton kinetic scales. Markovskii, S. A.; Vasquez, Bernard J. // Physics of Plasmas;Nov2010, Vol. 17 Issue 11, p112902
The energy transport associated with the fast magnetosonic turbulence in a low-beta plasma is one of the possible driving forces of the solar wind. Two different kinds of the turbulence spectra are discussed in this paper: a unidirectional spectrum of the fluctuations propagating away from the...

- Kinetic cascade beyond magnetohydrodynamics of solar wind turbulence in two-dimensional hybrid simulations. Verscharen, D.; Marsch, E.; Motschmann, U.; Müller, J. // Physics of Plasmas;Feb2012, Vol. 19 Issue 2, p022305
The nature of solar wind turbulence in the dissipation range at scales much smaller than the large magnetohydrodynamic (MHD) scales remains under debate. Here, a two-dimensional model based on the hybrid code abbreviated as A.I.K.E.F. is presented, which treats massive ions as particles obeying...

- Cross Helicity and Turbulent Magnetic Diffusivity in the Solar Convection Zone. Rüdiger, G.; Kitchatinov, L.; Brandenburg, A. // Solar Physics;Mar2011, Vol. 269 Issue 1, p3
In a density-stratified turbulent medium, the cross helicity ã€ˆ uâ€²â‹… Bâ€²ã€‰ is considered as a result of the interaction of the velocity fluctuations and a large-scale magnetic field. By means of a quasilinear theory and by numerical simulations, we find the cross...

- Magnetic helicity transport in the advective gauge family. Candelaresi, Simon; Hubbard, Alexander; Brandenburg, Axel; Mitra, Dhrubaditya // Physics of Plasmas;Jan2011, Vol. 18 Issue 1, p012903
Magnetic helicity fluxes are investigated in a family of gauges in which the contribution from ideal magnetohydrodynamics takes the form of a purely advective flux. Numerical simulations of magnetohydrodynamic turbulence in this advective gauge family exhibit instabilities triggered by the...

- Reconnection events in two-dimensional Hall magnetohydrodynamic turbulence. Donato, S.; Servidio, S.; Dmitruk, P.; Carbone, V.; Shay, M. A.; Cassak, P. A.; Matthaeus, W. H. // Physics of Plasmas;Sep2012, Vol. 19 Issue 9, p092307
The statistical study of magnetic reconnection events in two-dimensional turbulence has been performed by comparing numerical simulations of magnetohydrodynamics (MHD) and Hall magnetohydrodynamics (HMHD). The analysis reveals that the Hall term plays an important role in turbulence, in which...

- Forcing for statistically stationary compressible isotropic turbulence. Petersen, Mark R.; Livescu, Daniel // Physics of Fluids;Nov2010, Vol. 22 Issue 11, p116101
Linear forcing has been proposed as a useful method for forced isotropic turbulence simulations because it is a physically realistic forcing method with a straightforward implementation in physical-space numerical codes [T. S. Lundgren, 'Linearly forced isotropic turbulence,' Annual Research...