将数值计算与实验研究相结合，引入湍流运动理论，研究了在3.5%NaCl溶液中湍流状态下碳钢的流体腐蚀。针对旋转圆盘体系中的流体力学，采用壁函数、κ～ε两方程，建立了湍流状态下腐蚀的数学模型，并进行了计算与分析。结果表明：数值模拟计算值与实验结果基本一致，验证了在湍流下碳钢的腐蚀过程中仍然是电化学因素起主要作用，临界流体力学参数对阐明与流体流动有关的腐蚀现象具有重要意义。
Introducing turbulent flow theory,the corrosion of carbon steel in 3.5% NaCl solution under turbulent condition was studied by combination of numerical method with experimental measurement.The mathematical model for flow-induced corrosion in rotating disk apparatus was established by applying wall function and κ～ε equations,and on the basis of the model the numeration and analysis were carried out.The results showed that the numerical corrosion rate was almostly equal to the measured corrosion rate.Thus it was verified that electrochemical action still played an important role in corrosion of carbon steel under trubulent condition.The critical hydrodynamic parameters were very significant in clarifying accurately flow-induced corrosion.
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| [3] | |
| [4] |
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