海底悬跨石油管道泄漏流场和温度场耦合分析

摘要

对海底悬跨石油管道泄漏后流场与温度场的耦合进行分析，建立二维多相流海底管道模型，给出合理的流体力学和热力学边界条件，利用有限元软件FLUENT进行数值仿真分析。分析结果表明：海底悬跨石油管道泄漏对周围海水的温度场影响明显，高温区域随石油上浮而向上扩展；泄漏介质在管道周围产生绕流运动，离开管道后出现“滴流”现象。%The coupling of flow field and temperature field on spanning submarine oil pipeline are ana-lyzed after leakage ,two-dimensional multiphase flow submarine pipeline model is established ,reasonable boundary conditions of fluid mechanics and thermodynamics are given ,the finite element software FLU-ENT is used to make numerical simulation analysis .The results show that the temperature field of sur-rounding seawater is significantly affected by the leakage of spanning submarine pipeline ,the high-tem-perature effect region upward extends with the oil rising .The flow movement around fluid on leaking medi-um around pipeline is produced ,the phenomenon of trickles after leaving the pipe is appeared .