Study of the flow around a heated cylinder in mixed convection regime

S. Rolfo*, K. Kopsidas, S. A. Rahman, C. Moulinec, D. R. Emerson

*Corresponding author for this work

    Research output: Chapter in Book/Conference proceedingChapterpeer-review

    Abstract

    Overhead Lines (OHL) are a key component to transmit and distribute electrical energy. The aero-thermal design of OHL is generally carried out considering the cable as a perfect heated cylinder immersed in a uniform cross flow (IEEE standard for calculating the current-temperature relationship of bare overhead conductors, 2013, [1]). Moreover, The design also assumes that only two regimes can occur, depending on the Reynolds number (based on the line diameter and the incoming velocity): (a) natural convection for low velocities, e.g. below a wind speed of 0.6 m/s which roughly corresponds to a Reynolds number of 850; (b) forced convection at higher Reynolds numbers. In both of these cases analytical correlations exist to compute the Nusselt number.

    Original languageEnglish
    Title of host publicationERCOFTAC Series
    PublisherSpringer Nature
    Pages277-283
    Number of pages7
    DOIs
    Publication statusPublished - 1 Jan 2019

    Publication series

    NameERCOFTAC Series
    Volume25
    ISSN (Print)1382-4309
    ISSN (Electronic)2215-1826

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