基于CFD的油品泄漏扩散过程的数值模拟

构建油品泄漏扩散过程的三维计算流体力学（CFD）模型，研究地面粗糙度、泄漏口直径、泄漏速度和油品物性等因素对液池面积的影响；并根据液池扩展理论结合模拟结果拟合得到计算液池面积的经验关联式，可用来预估不同泄漏情况下液池的面积。结果表明液池面积随时间呈线性增加，随地面粗糙高度增大而减小，随泄漏速度、泄漏口直径增大而增大；地面粗糙常数、油品的密度和黏度对液池面积的影响较小。该研究结果可望为确定泄漏事故的影响范围及采取相应的防护措施提供理论基础和技术指导。

Numerical simulation of oil leakage and spreading processes based on CFD

A three-dimensional CFD model has been established to simulate the process of forming a liquid pool, and the influence of varying the surface roughness, leaking hole diameter, leakage velocity and oil properties on the liquid pool area were studied. According to the liquid pool expansion theory and simulation results, a formula for calculating the pool area was obtained. The results show that the pool area increases linearly with time, the area decreases with roughness height, but increases with leakage velocity and leaking-hole diameter, while roughness constant, oil density and viscosity have little effect on the pool area. The results obtained provide a theoretical basis and technical guidance for implementing appropriate accident remediation measures.