| 水下油气溢漏事故污染物输移预测模型 |
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| 引用本文： | 廖国祥,高振会,熊德琪.水下油气溢漏事故污染物输移预测模型[J].大连海事大学学报(自然科学版),2010(4). |
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| 作者姓名： | 廖国祥 高振会 熊德琪 |
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| 作者单位： | 武汉理工大学航运学院;国家深海基地;大连海事大学环境科学与工程学院; |
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| 基金项目： | 国家海洋局海洋溢油鉴别与损害评估技术重点实验室开放基金项目(201022); 中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 为评估海底油气管道泄漏、油气井井喷等水下事故的污染风险及其损害影响,及时制定科学应急反应决策,本文基于拉格朗日积分方法建立水下油气溢漏事故污染物输移预测模型.该模型能够模拟污染物在密度和流速分层的真实水下环境中的水流卷吸、湍流分散、溢油溶解、油气共同输移与分离输移等动态行为.进行了水下环境的浮力射流、气泡羽流以及油气分离输移等实验的数值模拟验证,计算结果与实验数据基本吻合.实际水下溢油试验结果表明,溢油在水下环境中的输移扩散过程的模拟结果与现场监测数据基本符合.
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| 关 键 词： | 水下溢漏事故 油气混合物 输移扩散 气体分离 数值模拟 |
A model for simulating the transport and diffusion of oil and gas released in underwater spill accidents |
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| LIAO Guoxiang,GAO Zhenhui,XIONG Deqi.A model for simulating the transport and diffusion of oil and gas released in underwater spill accidents[J].Journal of Dalian Maritime University,2010(4). |
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| Authors: | LIAO Guoxiang GAO Zhenhui XIONG Deqi |
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| Institution: | LIAO Guoxiang1,GAO Zhenhui2,XIONG Deqi3(1.Navigation College,Wuhan University of Technology,Wuhan 430063,China,2.National Deepwater Base,Qingdao 266061,3.Environmental Science & Engineering College,Dalian Maritime University,Dalian 116026,China) |
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| Abstract: | To evaluate the pollution risks and environment impacts resulting from underwater oil and gas spill accidents,and thereby work out corresponding countermeasures,a three-dimensional numerical model for simulating the behavior of oil and gas released from underwater spill accidents is developed.The model is based on the Lagrangian integral method.The model can simulate the transport of oil in ocean environment with stratified density and following ambient.The model considers the entrainment,turbulent diffusio... |
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| Keywords: | underwater oil spill accident oil and gas mixture transport and diffusion gas separation numerical simulation |
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