Numerical study of natural convection in eccentric annuli filled with the copper-water nanofluid Online publication date: Mon, 10-Sep-2018
by Robert Smusz
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 18, No. 5, 2018
Abstract: The paper presents the results of numerical simulations of natural convective heat transfer processes occurring in concentric and eccentric annular cylindrical buffer layer filled with the nanofluid. The considered buffer layer is used in the special type of coil heat exchanger to prevent the possible leakage of the refrigerant - working medium in the coil. Eccentricity of the layer may affect the heat transfer and thus thermal characteristics of the heat exchanger. The obtained results are presented in the form of dependences effective thermal conductivities vs. Rayleigh numbers. A significant effect of the eccentricity and the nanoparticle concentration on heat transfer process is observed.
Online publication date: Mon, 10-Sep-2018
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