动水中气幕围油栏围油性能数值模拟  

Numerical Simulation of Containment Performance of Pneumatic Oil Barriers in Flowing Water

作　　者：谢森森 卢金树[1] 徐振峰[1] 刘学强[1] 

机构地区：[1]浙江海洋学院海运与港航建筑工程学院,浙江舟山316022

出　　处：《中国航海》2015年第4期92-95,共4页Navigation of China

基　　金：国家自然科学基金(51079129);国家级大学生创新创业训练项目(201310340008)

摘　　要：气幕围油栏利用气泡幕在水面形成的表面流和气泡破裂隆起高度实现围油。为对动水中气幕围油栏的围油性能进行研究,采用VOF(Volume Of Fuid)方法追踪油污和水的界面,以变密度单流体的连续性方程和κ-ε方程为控制方程建立动水中气幕围油栏的数学模型。首次引入有效围油距离D,通过监测有效围油距离并结合流场分析,探究围油过程。数值模拟结果与试验结果吻合较好,证明了动水中气幕围油栏围油的可行性。通过数值计算结果对比分析得出了动水中影响气幕围油栏围油性能的主要因素,对气幕围油栏的研发具有重要意义。The pneumatic oil barriers is a new type of oil containment device,which operates on the basis of the surface flow induced by bubble curtain and the height of the bubbles uplift. The numerical simulation of pneumatic oil barriers in flowing water is conducted by means of the variable density single phase fluid model,with the continuity equations and theκ-ε equation as controlling equations. The boundary surface between oil and water is tracked by the Volume Of Fluid（ VOF） method. The performance of oil containment is explored by monitoring the effective containment distance D,a parameter introduced first time,and analyzing flow field. Numerical simulation results are in good agreement with test results.The feasibility of the pneumatic oil barriers in flowing water is demonstrated through the simulation. The main factors affecting the performance of oil containment in flowing water are identified by analyzing the results of numerical calculation,which is of great significance for the development of Pneumatic oil barriers.

关 键 词：船舶工程 气幕围油栏 围油性能 动水 数值模拟 

分 类 号：X55[环境科学与工程—环境工程] U698.7[交通运输工程—港口、海岸及近海工程]