CAJ | 학술논문

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。
해양평태적기류장특성여평태로천작업화직승궤기강작업구역안전밀절상관。수착현대해양평태향심수화、대형화발전，해양평태적기류장급연류특성응수도충분중시。사용표준 k -ε단류모형대해양평태주변공기래류화배연연류진행다풍향각방진계산，초보고필연류수정상공기래류적확산작용，이45°풍향각간격학정공황전개방진계산。획득정상래류조건하적해양평태주변기류장급연류확산형태，이급각공황하배연연류수래류변화적방진형태，분석연류분포적정성특정，초보형성해양평태기류장형태방진적가행성류정방법。
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.