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Found 5 entries in the Bibliography.
Showing entries from 1 through 5
Strategies for Determining the Cascade Rate in MHD Turbulence: Isotropy, Anisotropy, and Spacecraft Sampling
Exact laws for evaluating cascade rates, tracing back to the Kolmogorov 4/5 law, have been extended to many systems of interest including magnetohydrodynamics (MHD), and compressible flows of the magnetofluid and ordinary fluid types. It is understood that implementations may be limited by the quantity of available data and by the lack of turbulence symmetry. Assessment of the accuracy and feasibility of such third-order (or Yaglom) relations is most effectively accomplished by examining the von K\ arm\ an-Howarth equati ...
Wang, Yanwen; Chhiber, Rohit; Adhikari, Subash; Yang, Yan; Bandyopadhyay, Riddhi; Shay, Michael; Oughton, Sean; Matthaeus, William; Cuesta, Manuel;
Published by: \apj Published on: oct
YEAR: 2022   DOI: 10.3847/1538-4357/ac8f90
Parker Data Used; interplanetary turbulence; Space plasmas; Plasma physics; Magnetohydrodynamics; Magnetohydrodynamical simulations; 830; 1544; 2089; 1964; 1966; Physics - Space Physics; Physics - Fluid Dynamics; Physics - Plasma Physics
On the Conservation of Turbulence Energy in Turbulence Transport Models
Zank et al. developed models describing the transport of low-frequency incompressible and nearly incompressible turbulence in inhomogeneous flows. The formalism was based on expressing the fluctuating variables in terms of the Elsässar variables and then taking moments subject to various closure hypotheses. The turbulence transport models are different according to whether the plasma beta regime is large, of order unity, or small. Here, we show explicitly that the three sets of turbulence transport models admit a conser ...
Wang, B.; Zank, G.~P.; Adhikari, L.; Zhao, L.;
Published by: \apj Published on: apr
YEAR: 2022   DOI: 10.3847/1538-4357/ac596e
Parker Data Used; Magnetohydrodynamics; interplanetary turbulence; 1964; 830; Physics - Plasma Physics; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Solar and Stellar Astrophysics; Physics - Fluid Dynamics
General Exact Law of Compressible Isentropic Magnetohydrodynamic Flows: Theory and Spacecraft Observations in the Solar Wind
Various forms of exact laws governing magnetohydrodynamic (MHD) turbulence have been derived either in the incompressibility limit, or for isothermal compressible flows. Here we propose a more general method that allows us to obtain such laws for any turbulent isentropic flow (i.e., constant entropy). We demonstrate that the known MHD exact laws (incompressible and isothermal) and the new (polytropic) one can be obtained as specific cases of the general law when the corresponding closure equation is stated. We also recover a ...
Published by: \apj Published on: jul
YEAR: 2021   DOI: 10.3847/1538-4357/ac0337
Solar wind; Solar Physics; Parker Data Used; Magnetohydrodynamics; Plasma astrophysics; Plasma physics; interplanetary turbulence; 1534; 1476; 1964; 1261; 2089; 830; Physics - Plasma Physics; Physics - Fluid Dynamics
Finite Dissipation in Anisotropic Magnetohydrodynamic Turbulence
Bandyopadhyay, Riddhi; Oughton, S.; Wan, M.; Matthaeus, W.~H.; Chhiber, R.; Parashar, T.~N.;
Published by: Physical Review X Published on: 10/2018
YEAR: 2018   DOI: 10.1103/PhysRevX.8.041052
Parker Data Used; Physics - Plasma Physics; Physics - Fluid Dynamics; Physics - Space Physics
Magnetic field reversals and long-time memory in conducting flows
Dmitruk, P.; Mininni, P.~D.; Pouquet, A.; Servidio, S.; Matthaeus, W.~H.;
Published by: \pre Published on: 10/2014
YEAR: 2014   DOI: 10.1103/PhysRevE.90.043010
Parker Data Used; 47.65.-d; 47.27.E-; 47.35.Tv; 91.25.Mf; Magnetohydrodynamics and electrohydrodynamics; Turbulence simulation and modeling; Magnetohydrodynamic waves; Magnetic field reversals: process and timescale; Physics - Fluid Dynamics; Astrophysics - Earth and Planetary Astrophysics; Physics - Geophysics; Physics - Plasma Physics