Rotating visco-polytropic models

Details Rotating visco-polytropic models Rotating visco-polytropic models

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.167...13g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 167, no. 1, May 1990, p. 13-20.

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Rotating Fluids, Stellar Models, Viscous Fluids, Computational Astrophysics, Hydrostatics, Polytropic Processes

Scientific paper

Polytropic stellar models distorted by differential rotation owing to the viscous material of the models are computed. To carry out the calculations, cylindrical symmetry is assumed for both viscosity and differential rotation. A constant rotation decay time over a long time is also assumed. A differential equation representing the coupling of viscosity and differential rotation is thus obtained which can be solved for the differential rotation provided that the viscosity is known. This equation fits well the framework of a 'complex-plane strategy' and of a 'multiple-partition technique' which are numerical techniques implemented in the required computations.

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