Who said that with Taylor-Couette and LDV you cannot get a publication in Nature?

Hydrodynamic turbulence cannot transport angular momentum effectively in astrophysical disks

Hantao Ji1,
Michael Burin1,2,
Ethan Schartman1
and
Jeremy Goodman


A rotating fluid (water or a water/glycerol mixture) of height h = 27.86 cm is confined between two concentric cylinders of radii r1 = 7.06 cm and r2 = 20.30 cm, which rotate at rates of Omega1 and Omega2,
respectively. Two novel features distinguish this apparatus from
conventional Taylor–Couette experiments. First, secondary circulation
is controlled by dividing each endcap into two independently driven
rings. Opposing rings at top and bottom are driven at the same
selectable angular velocity Omega3 (inner rings) and Omega4 (outer rings). Traditionally, a large aspect ratio Gamma equivalent to h/(r2 – r1) is used to reduce the secondary circulation. However, at Unfortunately we are unable to provide accessible alternative text for this. If you require assistance to access this image, or to obtain a text description, please contact npg@nature.com by Richard7 and even at Unfortunately we are unable to provide accessible alternative text for this. If you require assistance to access this image, or to obtain a text description, please contact npg@nature.com by Taylor18,
end effects were reported to be significant when the endcaps co-rotated
with one of the cylinders. Even when the endcaps were divided into two
rings, but with each affixed to one cylinder7, 17, residual secondary circulation may have facilitated the observed turbulent transition15, 19. When Omega3 and Omega4 are appropriately chosen, secondary circulation is minimized and ideal Couette profiles are well approximated21.
A second novel feature is access to rotation profiles on both sides of
marginal linear stability at Reynolds numbers as large as 106 (see also Fig. 2). When the specific angular momentum, |r2Omega|, decreases with increasing r, the Rayleigh stability criterion30 is violated, and thus the flow is linearly unstable when the Reynolds number exceeds a critical value16. When part|r2Omega|/partr > 0 but part|Omega|/partr < 0 (as in disks, where Omega proportional to r-3/2),
the flow is quasi-keplerian and known to be linearly stable to
axisymmetric disturbances. All major components of the apparatus were
precisely machined and balanced, and except for the inner cylinder and
rotating shafts, are made of clear acrylic to facilitate visual and
laser diagnostics.

Read more in http://www.nature.com/nature/journal/v444/n7117/full/nature05323.html

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