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槽道流使用fluent数值模拟,2d模型,基于标准k-ε湍流模型,考虑使用增强壁面函数,选择速度边界条件,想咨询一下各位大神,速度入口边界条件这里对应的湍流强度和长度尺度应该怎么设置?使用增强壁面函数对应处理近壁面,这里选择是否合理呢,对于槽道流,壁面函数这样选择是否合理?
来源:fluent help Turbulence Intensity I≡u′uavg=0.16(ReDH)−1/8
Turbulence Length Scale ℓ=0.07LCμ3/4
Turbulent Kinetic Energy k=32(uavgI)2
Turbulent Dissipation Rate ε=k3/2l
@veen 谢谢,我学习一下
2/3
2020年9月6日 08:28