Rossby Number
Inertia-less convectively-driven dynamo models in the limit of low Rossby number and large Prandtl number
... Prandtl number, P r, characterizing compositional convection is significantly larger than unity, suggesting that the inertial force may not be important on the small scales of convection as long as the buoyancy ...
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The trajectory of slender curved liquid jets for small Rossby number
... Wallwork et al. (2002) and Decent et al. (2002) developed an asymptotic method for describing the trajectory and instability of slender curved liquid jets. Decent et al. (2018) showed that this method is accurate for ...
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The evolution of surface magnetic fields in young solar-type stars I: the first 250 Myr
... scale magnetic field strength for a single Rossby number at different ages, as illustrated in Fig. 11. Thus, we do not have clear evidence for an evolution in magnetic properties with age distinct from ...
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A Conservative Model for Nonlinear Dynamics in a Stratified, Rotating Fluid
... a Rossby number expansion with second order ...moderate Rossby numbers and a Burger number of order unity; 2) it filters inertia-gravity waves by assuming that the divergence of horizontal ...
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Effect of Prandtl's ration on balance in geophysical turbulence
... small Rossby numbers, ...PV-based Rossby number, the only Rossby number that is invariant in a freely decaying ...PV-based Rossby number in these circumstances appears to ...
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Bending and twisting instabilities of columnar elliptical vortices in a rotating strongly stratified fluid
... the Rossby number is decreased, this picture remains valid for small wavenumber although the unstable region is more and more bent towards positive values of Ω (the reversal of the unstable domain towards ...
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Stellar magnetism and activity : from stellar interiors to orbiting exoplanets
... Böhm-Vitense (2007) also considered the possibility that activity cycle periods may lie on multiple branches. This author studied the stars from Baliunas et al. (1995) with the most reliable chromospheric cycle period ...
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Studying stellar spin-down with Zeeman–Doppler magnetograms
... Magnetic activity and rotation are known to be intimately linked for low-mass stars. Un- derstanding rotation evolution over the stellar lifetime is therefore an important goal within stellar astrophysics. In recent ...
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On the origin of time-dependent behaviour in a barotropically unstable shear layer
... of Rossby number which was changed logarithmically over a time interval of 8 hours from Ro = − ...corresponding Rossby and Reynolds number values at transitions ...
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Inverse cascade and symmetry breaking in rapidly-rotating Boussinesq convection
... Reynolds number of the flow, as defined by equation (11) in Table ...enough Rossby number, typically Ro L < 1, show a growth in the kinetic energy associated with the 2D ...
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The merger of geophysical vortices at finite Rossby and Froude number
... finite Rossby and Froude ...the Rossby number: intense cyclones or intense anticyclones are able to merge from further apart compared to weaker cyclones and ...Froude number is proportional to ...
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Symmetry analysis for three dimensional dissipation Rossby waves
... Nonlinear partial differential equations [8–10] play an important role in the field of Rossby waves. Many models have been derived [11–14], and many methods have been used to solve the nonlinear partial differential ...
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Rossby wave, drift wave and zonal flow turbulence
... of Rossby wave and drift wave - zonal flow turbulence are typical of the coexistence of two distinctly different spatial and time ...Likewise, Rossby waves have a higher frequency than the zonal flows in ...
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NONLINEAR ROSSBY ADJUSTMENT IN A CHANNEL - BEYOND KELVIN WAVES
... Velocity vectors drawn in the fixed coordinate system S for a region far downstream from the initial discontinuity (x = 9.5 to 10.5) illustrate the reversal in relati[r] ...
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Null modes effect in Rossby wave model
... The Hamiltonian approach Eq. (A3) was initially devel- oped in fluid dynamics mainly for pragmatic goals, as a me- thod of solving some concrete hydrodynamical problems. For example, it appears to be very effective in ...
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Rossby-wave turbulence in a rapidly rotating sphere
... few Rossby waves (which may be excited in the way the primary instabilities are) are able to reach the smallest ...and Rossby waves, so that it is no surprise to observe a turbulence domi- nated by these ...
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Linear and nonlinear progressive Rossby waves on a rotating sphere
... scale analysis, 10 series representation, 41 shallow atmosphere compressible, 74 incompressible, 8 shallow atmosphere approximation, 10, 76 shallow atmosphere equations non-dimensional c[r] ...
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The calculation, scattering and stability of topographic rossby waves
... The crucial question concerning all hypothetical models is whether they bear any reference to actual motions in the oceans or atmosphere. The answer to th at lies in the stability of the flow. Helmholtz (1888) recognised ...
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Propagation of Rossby waves in stratified shear flows
... The wave action flux which is the ratio of the wave energy flux to the local relative frequency which is proportional to the angular momentum flux is constant everywhere inside the fluid[r] ...
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Nonlinear excitation of zonal flows by rossby wave turbulence
... coupled Rossby wave-zonal flow fluid turbulence in a two-dimensional rotating ...of Rossby wave turbulence. Short-wavelength Rossby waves are described here as a fluid of quasi-particles, and are ...
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