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P Sharma - Physics

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α-model (a la mixing<br />

length theory)<br />

H<br />

H<br />

R<br />

turbulent stress due to eddies of size H<br />

ν=αcsH: turbulent diffusivity<br />

WrΦ=Σν(dΩ/dlnR)<br />

observations can be explained if α~0.1-0.0001

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