It has long been suspected that
turbulent motions in the lower solar atmosphere are propagated outward as waves in some form, which ultimately shock the thin atmosphere above the surface (the photosphere).
«With CH +, we learn that energy is stored within vast galaxy - sized winds and ends up as
turbulent motions in previously unseen reservoirs of cold gas surrounding the galaxy,» said Falgarone, who is lead author of the new paper.
Not exact matches
Wouter Bos at the École Centrale de Lyon
in France and his colleagues have now tracked a
turbulent fluid's
motion by picking one point and following it as the fluid tosses it about.
«The high resolution allowed us, for the first time, to ensure that small - scale
turbulent disk
motions are accurately captured
in our models,» Tchekhovskoy said.
«
In turbulent systems, kinetic energy always dissipates from the motion of vortices, but up to now everyone had thought that when vortices are in laminar motion the dissipation of energy is zero at zero temperatur
In turbulent systems, kinetic energy always dissipates from the
motion of vortices, but up to now everyone had thought that when vortices are
in laminar motion the dissipation of energy is zero at zero temperatur
in laminar
motion the dissipation of energy is zero at zero temperature.
It is generated by
turbulent motions of liquid iron
in Earth's core.
Using further 3 - D dynamo simulations, which model the generation of magnetic field by
turbulent fluid
motions, Driscoll looked more carefully at the expected changes
in the magnetic field over this period.
Figure 02: The «Moment 1» panel shows the change of velocity across the galaxy, indicating a smooth rotation, while «Moment 2» gives the spectral line's width, here showing a broad line toward the
turbulent star - forming nuclear bar and more ordered
motion in the arms themselves.
Since CH + forms exclusively
in small areas where
turbulent motions of gas dissipates, its detection
in essence traces energy on a galactic scale.
«The VLTI is the only facility that can directly measure the gas
motions in the extended atmosphere of Antares — a crucial step towards clarifying this problem.The next challenge is to identify what's driving the
turbulent motions.»
Professor Giles Harrison, who led an international research team including scientists from the University of Reading's Meteorology department, the Met Office and the European Centre for Medium Range Weather Forecasting, said: «The sky is often full of clues to weather changes, and asperitas provides distinctive visualisation of complex and
turbulent air
motions in the lower atmosphere.»
«This (non-isothermal isentropic profile) indeed brings us to the broader framework discussed by Maxwell,
in the sense that convective
turbulent motions are now taken into account, albeit implicitly....
Yet making progress is challenging,
in part because their dynamics involve three - dimensional,
turbulent fluid
motions on the scale of a few meters, the nonlinear interaction of turbulence with the formation of cloud droplets, and the interaction of these cloud droplets with radiation (e.g. Wood (2012)-RRB-.
The narratives decribing parameterizations
in papers discussing climate models themselves don't seem to suggest LES like parameterization, as the parameterization does not depend on the computational grid size of the length scale of the
turbulent like
motions.