排烟烟流影响下的海洋平台气流场形态仿真  

Off-shore platform air-wake imulation with effects of smoke plume

作　　者：张文国[1] 陆超[1] 

机构地区：[1]中国舰船研究设计中心,湖北武汉430064

出　　处：《舰船科学技术》2015年第6期65-70,共6页Ship Science and Technology

摘　　要：海洋平台的气流场特性与平台露天作业和直升机起降作业区域安全密切相关。随着现代海洋平台向深水化、大型化发展,海洋平台的气流场及烟流特性应受到充分重视。使用标准k-ε湍流模型对海洋平台周边空气来流和排烟烟流进行多风向角仿真计算,初步考虑烟流随定常空气来流的扩散作用,以45°风向角间隔确定工况展开仿真计算。获得定常来流条件下的海洋平台周边气流场及烟流扩散形态,以及各工况下排烟烟流随来流变化的仿真形态,分析烟流分布的定性特征,初步形成海洋平台气流场形态仿真的可行性流程方法。The off-shore platforms are always been deployed in the open water,which would suffered the environmental air-flow randomly. With consideration of safe operation on deck or helicopter platform,it＇s necessary to study the air-wake of the off-shore platform with random wind-over-deck（ WOD）.Meanwhile,the smoke plume from platform＇s power station would be diffused by WOD,this would have a potential affection to the platform. This paper has experimented an air-wake simulation of off-shore platform with smoke plume,which has the k- ε model adopted. The calculations have been operated form 0°to 180°of WOD. With initial trial of simulation,the initial image of air-wakes have been generated,the off-shore platform air-wake study has been approved.

关 键 词：海洋平台 气流场 烟流 

分 类 号：U674.381[交通运输工程—船舶及航道工程]