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Laminar forced convection from a rotating horizontal cylinder in cross flow

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Abstract

The influence of non-dimensional rotational velocity, flow Reynolds number and Prandtl number of the fluid on laminar forced convection from a rotating horizontal cylinder subject to constant heat flux boundary condition is numerically investigated. The numerical simulations have been conducted using commercial Computational Fluid Dynamics package CFX available in ANSYS Workbench 14. Results are presented for the non-dimensional rotational velocity α ranging from 0 to 4, flow Reynolds number from 25 to 40 and Prandtl number of the fluid from 0.7 to 5.4. The rotational effects results in reduction in heat transfer compared to heat transfer from stationary heated cylinder due to thickening of boundary layer as consequence of the rotation of the cylinder. Heat transfer rate increases with increase in Prandtl number of the fluid.

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Authors and Affiliations

  1. Dept of Mechanical Engineering, College of Engineering Trivandrum, Kerala, India

    Prabul Chandran, H. Abdul Jaleel & M. R. Rajkumar

  2. Dept of Mechanical Engineering, Government Engineering CollegeThrissur, Kerala, India

    G. Venugopal

Authors
  1. Prabul Chandran
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  2. G. Venugopal
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  3. H. Abdul Jaleel
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  4. M. R. Rajkumar
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Chandran, P., Venugopal, G., Jaleel, H.A. et al. Laminar forced convection from a rotating horizontal cylinder in cross flow. J. Therm. Sci. 26, 153–159 (2017). https://doi.org/10.1007/s11630-017-0924-9

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  • DOI: https://doi.org/10.1007/s11630-017-0924-9

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