Heat transfer and icing of a rough cylinder

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66 Citations (Scopus)

Abstract

Heat transfer from a rough ice surface to air is a fundamental factor determining the icing rate and ice shape on an object under conditions where the impinging water flux exceeds the icing rate. In order to examine the effect of the roughness characteristics on icing, a boundary-layer model of heat transfer from a front half of a rough circular cylinder is proposed. The model is based on the integral equations of the boundary layer, and predicts the local heat transfer coefficient along the cylinder surface and, subsequently, the overall heat transfer rate. Comparison between the results of the model and the available experimental data for three different roughnesses in the cylinder Reynolds number range 5 × 104 < Re < 4 × 106 show that the model simulates the heat transfer more precisely than the previous formulations used in icing models.

Original languageEnglish
Pages (from-to)105 - 116
Number of pages12
JournalCold Regions Science and Technology
Volume10
Issue number2
DOIs
Publication statusPublished - 1985
MoE publication typeNot Eligible

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