Abstract:

The polar region is rich in natural resources, but the climate is harsh. The deck surface of offshore platforms in this region is prone to icing, which is dangerous. To investigate factors affecting the icing of deck structures on polar marine platforms, a combination of the software programs Fluent and FENSAP-ICE was used to analyze the influence of sea surface height and structure length on deck icing under conditions of supercooled fog and rain. The results showed that when Characteristic wind speeds were 5 m·s^–1, 6 m·s^–1 and 7 m·s^–1, average ice thickness on the structure surface increased gradually with height from 2 m to 20 m and the relative growth rate of ice on the structure surface decreased gradually. Additionally, when Characteristic wind speed was 5 m·s^–1 at altitudes of 20 m and 80 m above sea level, the length of the structure increased from 1 m to 30 m, and average ice thickness on the structure surface and degree of reduction decreased.

Key words: polar offshore platform, deck structure, icing, numerical method