Notice:

Found 5 entries in the Bibliography.
Showing entries from 1 through 5
2022 
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 thirdorder (or Yaglom) relations is most effectively accomplished by examining the von K\ arm\ anHowarth 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: 10.3847/15384357/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 lowfrequency incompressible and nearly incompressible turbulence in inhomogeneous flows. The formalism was based on expressing the fluctuating variables in terms of the ElsÃ¤ssar 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: 10.3847/15384357/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 
2021 
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: 10.3847/15384357/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 
2018 
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 
2014 
Magnetic field reversals and longtime 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 
1