%0 Journal Article
%T MODELING OF FROST GROWTH ON A HORIZONTAL CIRCULAR CYLINDER UNDER NATURAL CONVECTION USING FRACTAL GEOMETRY ANALYSIS
%J Iranian Journal of Science and Technology Transactions of Mechanical Engineering
%I Shiraz University
%Z 2228-6187
%D 2014
%\ 04/01/2014
%V 38
%N M1
%P 1-8
%! MODELING OF FROST GROWTH ON A HORIZONTAL CIRCULAR CYLINDER UNDER NATURAL CONVECTION USING FRACTAL GEOMETRY ANALYSIS
%K Frost growth
%K fractal geometry
%K Von-Koch curves
%K natural convection
%K horizontal cylinder
%R 10.22099/ijstm.2014.1922
%X In the present study fractal geometry is used to model frost growth around a cooledhorizontal circular cylinder having constant surface temperature. Fractal geometries are veryapplicable in this area because phase changes such as melting and solidifications are simulated byconventional methods but frost formation is a most complicated coupled heat and mass transferand conventional mathematical functions cannot capture the effects of all parameters on its growthand development because this process is influenced by many factors and it is a time dependentprocess. Data for fractal analysis and modeling are collected from the experimental measurements.In the present work a fractal geometry based on the Von Koch curve idea is used to model frostgrowth procedure, especially in frost thickness and density. Comparison is performed betweenfractal modeling and experimental measurements. Results show that fractal geometry is capable tomodel frost formation process over a cold horizontal cylinder. According to the obtained resultsand based on the developed model frost formation over cylinders with different diameters aremodeled.
%U https://ijstm.shirazu.ac.ir/article_1922_43ba3f7d07b18b562399a8c9bd163c46.pdf