Tur Davidson 1st Chapter

8/13/2019 Tur Davidson 1st Chapter

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Taylor vortices Wavy Taylor vortices Turbulent Taylor vortices

(a) z r

R d

(b) (c)


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u

u


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Cold ( T = T 0)

Hot ( T = T 0 + T )Low T Bnard cells Turbulent convection

(High

T )

No motion g

d

(a) (b) (c)


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(a)

(b)

(c)

(d)

(e)


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Initiation Formation of turbulent slug Laminar region Turbulent slug


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u

x 0

t

ux (x 0)

Realization 1

Realization 2


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Prominence

(a)

(b) Magneticarcade Magnetic

reconnection

Foot points

Solar wind

Shock wave

Magnetopause

Earth

Mantle

B

Liquid core

Solid inner core


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u


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(a)

(b)


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First instability

Second instability

Third instability

Viscosity

Energy flux


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u

u

High Re

Modest Re


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L B O X


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Tur Davidson 1st Chapter

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