SEA SPRAY ICING PROFILES ON FIXED OFFSHORE STRUCTURES
While ships create spray by slamming into waves as they push through the wave field, spray impinging on fixed platforms comes primarily from drops generated from wind waves. I determine spray drop profiles over the ocean using a published concentration density function for drops created by bursting bubbles. That function has been extended to very high wind speeds to include drops created by the wind ripping water off the crests of waves. Above the water, in the atmospheric surface layer, the spray concentration profile is assumed to follow a power law, based on friction velocity and drop fall velocities. I use drop concentration profiles based on measured meteorological data to determine the vertical profile of liquid water content, median volume radius, and spray icing rate on components of fixed offshore platforms. I compare simulated icing rates with semiquantitative icing observations in very high winds on the semisubmersible exploration and drilling platform Ocean Bounty.
Kathleen F.Jones
Terrestrial and Cryospheric Sciences Branch, CRREL, Hanover, New Hampshire USA
国际会议
The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)
重庆
英文
36
2011-05-08（万方平台首次上网日期，不代表论文的发表时间）