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    Convection Correlations at High Re Numbers for Cavities of Cylindrical Roller Bearings

    S. Guenoun1, A. Baïri1, N. Laraqi1,2, J.M. García de María3, J.G. Bauzin1, A. Hocine1

    FDMP-Fluid Dynamics & Materials Processing, Vol.8, No.2, pp. 197-214, 2012, DOI:10.3970/fdmp.2012.008.197

    Abstract Roller bearings are used in mechanical setups to reduce rubbing. In some applications, the thermal dissipation involved mostly due to friction between rollers and rings is important. Correct operation of the roller is possible only if local thermal phenomena are controlled. In this work, the resulting dynamical and thermal fields within the enclosures limited by rollers and rings in cylindrical bearings are obtained through numerical modelling. Convective heat transfer is quantified by Nu-Re-Pr correlations for various dynamical and thermal configurations of the bearing. Two specific shape factors of the cavity and common fluids of engineering More >

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