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fluiddyn
fluiddyn_papers
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05b74fae
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05b74fae
authored
2 years ago
by
Pierre Augier
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2022strat_turb_toro: improve notes_after_pres_Vienna.md
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05b74fae
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@@ -2,8 +2,9 @@
See http://www.legi.grenoble-inp.fr/people/Pierre.Augier/presentations-at-euromech-colloquium-619.html
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Insist about open data and availability of spatiotemporal spectra
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Insist about open data and availability of many different types of outputs
and in particular spatiotemporal spectra
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Insist on the large number of simulations (spanning the (Fh, R) space). Show
what is available in the literature.
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@@ -6,23 +7,9 @@
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Insist on the large number of simulations (spanning the (Fh, R) space). Show
what is available in the literature.
-
Strong "negative" result: if we do not change the equation, even by forcing
very gently IGW, we do not obtain a statistically stationnary state
corresponding to a "pure poloidal strongly stratified turbulence".
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Is the buoyancy Reynolds number important for stratified turbulence forced by
waves? Is there a transition for small R? Is there a "viscosity affected
regime" for this forcing? If yes, how is it similar/different than the
"viscosity affected regime" for forcing with vortices?
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forcing by waves: transition between "viscosity affected regime" to a
non-linear regime. No weak turbulence regime. (?)
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Only waves for small k_z can be weakly nonlinear. (?)
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First clear observation of the F_h^-1 scaling (data in Garanaik &
Venayagamoorthy (2019) not very convincing)
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Bottleneck à k_b in E_vort(k_h).
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@@ -24,7 +11,14 @@
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First clear observation of the F_h^-1 scaling (data in Garanaik &
Venayagamoorthy (2019) not very convincing)
-
Bottleneck à k_b in E_vort(k_h).
-
Poloidal forcing: ratio E_vort(k_h) / E_polo(k_h)?
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Weakly NL waves for the toroidal forcing?
## Specific to poloidal forcing
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Is the buoyancy Reynolds number also important for stratified turbulence
forced by waves? Is there a transition for small R? Is there a "viscosity
affected regime" for this forcing? If yes, how is it similar/different than the
"viscosity affected regime" for forcing with vortices?
...
...
@@ -30,2 +24,11 @@
-
Weakly NL waves for the toroidal forcing?
-
transition between "viscosity affected regime" to a non-linear regime. No
weak turbulence regime. (?)
-
Only waves for small k_z can be weakly nonlinear. (?)
-
ratio E_vort(k_h) / E_polo(k_h) ?
-
Strong "negative" result: if we do not change the equation, even by forcing
very gently IGW, we do not obtain a statistically stationnary state
corresponding to a "pure poloidal strongly stratified turbulence".
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