منابع مشابه
Mixing in manipulated turbulence
A new computational framework for the simulation of turbulent flow through complex objects and along irregular boundaries is presented. This is motivated by the application of metal foams in compact heat-transfer devices, or as catalyst substrates in process-engineering. The flow-consequences of such complicated objects are incorporated by adding explicit multiscale forcing to the Navier–Stokes...
متن کاملMixing, Chaotic Advection, and Turbulence
The establishment of a paradigm for mixing of fluids can substantially affect the development of various branches of physical sciences and technology. Mixing is intimately connected with turbulence, Earth and natural sciences, and various branches of engineering. However, in spite of its universality, there have been surprisingly few attempts to construct a general framework for analysis. An ex...
متن کاملDispersion and mixing in quasigeostrophic turbulence.
The dynamics of passive Lagrangian tracers in three-dimensional quasigeostrophic turbulence is studied numerically and compared with the behavior of two-dimensional barotropic turbulence. Despite the different Eulerian properties of the two flows, the Lagrangian dynamics of passively advected tracers in three-dimensional quasigeostrophic turbulence is very similar to that of barotropic turbulen...
متن کاملTurbulence and Mixing in the Intracluster Medium
The intracluster medium (ICM) is stably stratified in the hydrodynamic sense with the entropy s increasing outwards. However, thermal conduction along magnetic field lines fundamentally changes the stability of the ICM, leading to the “heat-flux buoyancy instability” when dT/dr > 0 and the “magnetothermal instability” when dT/dr < 0. The ICM is thus buoyantly unstable regardless of the signs of...
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ژورنال
عنوان ژورنال: Journal of Turbulence
سال: 2006
ISSN: 1468-5248
DOI: 10.1080/14685240600827534