pdf 3.6 MB
pdf 3.6 MB
pdf 3.6 MB
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Ri<br />
0.001<br />
0.000<br />
�0.001<br />
�0.002<br />
�0.003<br />
Richardson number &<br />
Thermal diffusion time<br />
�0.004<br />
0.1 1.0 10.0 100.0<br />
r[AU]<br />
� therm<br />
12/13/2009 Hubert Klahr - Planet Formation - MPIA<br />
Heidelberg<br />
N 2 = 1<br />
100.0<br />
10.0<br />
1.0<br />
⇤<br />
Ri 2 =<br />
H<br />
R ⇥s⇥p<br />
N 2<br />
3<br />
2<br />
⇥ 2<br />
⇧therm = H 2 / D<br />
The saturated state presents a turbulent flow dominated b<br />
(Mamatsashvili & Chagelishvili 2007 ;Heinemann & Papaloizo<br />
fluctuation of 10% of the speed of sound and producing -valu<br />
10 3. Vortices are forming spontaneously out of the creation o<br />
⌅cv<br />
0.1<br />
0.1 1.0 10.0 100.0<br />
r[AU]<br />
vortices show no sign of decay, yet draw the energy out of the g<br />
providing entropy flux downward the gradient, like in standard<br />
Wednesday, September 5, 12<br />
MRI BI<br />
16<br />
2