Numerical computation of fluid convection with air enclosed between the annuli of eccentric heated horizontal rotating cylinders.

*(English)*Zbl 0753.76118Summary: Numerical experiments are performed to study the effects of the convective fluid motion of air enclosed between the annuli of eccentric horizontal cylinders. The inner cylinder is assumed to be heated and rotating. The rotational Reynolds number (Re) is considered in the range 0-1120; the Rayleigh number (Ra) is considered in the range \(10^ 3- 10^ 6\). When the inner cylinder rotates, numerical experiments show that the multicellular flow patterns observed in stationary cylindrical annuli subside in a manner dependent on the eccentricity and the rotational Re of the inner cylinder. At higher rotational Re, the flow tends toward a uniform flow. With a fixed Ra, when the inner cylinder is assumed to rotate, the mean Nusselt number decreases throughout the flow.

##### MSC:

76M20 | Finite difference methods applied to problems in fluid mechanics |

76R10 | Free convection |

76U05 | General theory of rotating fluids |

80A20 | Heat and mass transfer, heat flow (MSC2010) |

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##### References:

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