Publication Abstracts

Canuto 1990

Canuto, V.M., 1990: The mixing length parameter α. Astron. Astrophys., 227, 282-284.

The standard mixing length theory, MLT, treats turbulent eddies as if they were isotropic, while the largest eddies that carry most of the flux are highly anisotropic. Recently, an anisotropic MLT was constructed, and the relevant equations derived. In this paper, we shown that these new equations can actually be cast in a form that is formally identical to that of the standard isotropic MLT, provided the mixing length parameter, derived from stellar structure calculations, is interpreted as an intermediate, auxiliary function α(x), where x, the degree of anisotropy, is given as a function of the thermodynamic variables of the problem. The relation between α(x) and the physically relevant α(l = α Hp) is also given. Once the value α is deduced, it is found to be a function of the local thermodynamic quantities, as expected.

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BibTeX Citation

@article{ca07700f,
  author={Canuto, V. M.},
  title={The mixing length parameter α},
  year={1990},
  journal={Astron. Astrophys.},
  volume={227},
  pages={282--284},
}

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RIS Citation

TY  - JOUR
ID  - ca07700f
AU  - Canuto, V. M.
PY  - 1990
TI  - The mixing length parameter α
JA  - Astron. Astrophys.
VL  - 227
SP  - 282
EP  - 284
ER  -

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