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Application of the viscosity-expansion method to a rotating thin fluid disk bound by central gravity

Koichi Takahashi.

in Progress of Theoretical and Experimental Physics

July 2015; p ublished online July 2015 .

Journal Article. Subjects: Galaxies; Fluid Mechanics. 9639 words.

The 2D rotation of a thin fluid disk with a porous sink around the center is studied within the Navier–Stokes and Euler equations. The viscosity ([math])-expansion method is applied to the...

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Towards a Theory of Entropy Production in the Little and Big Bang

Teiji Kunihiro, Berndt Müller, Akira Ohnishi and Andreas Schäfer.

in Progress of Theoretical Physics

March 2009; p ublished online March 2009 .

Journal Article. Subjects: Cosmology; Classical Mechanics; Nuclear Physics. 0 words.

We propose a broadly applicable formalism for the description of coarse grained entropy production in quantum mechanical processes. Our formalism is based on the Husimi transform of the...

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