Boundary Layer under Oscillatory Wave
Boundary Layer under Oscillatory Wave
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DOI：
10.5402/2011/814045
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发表时间：
2011-08
期刊：
影响因子：
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通讯作者：
M. Adityawan;Hitoshi Tanaka
中科院分区：
文献类型：
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作者：
M. Adityawan;Hitoshi Tanaka
由于波浪运动和传播引起的湍流是泥沙运动模拟中一个非常重要的方面。边界层特性对泥沙输移机制有着重要的影响。一维模型方法已被广泛应用于湍流边界层的计算。然而，需要一个更详细的模型导致了更复杂的模型的发展。本文提出了一个二维湍流模式，利用湍流边界层方程组采用有限差分中心格式求解。该模型适用于振荡正弦波和斜波的情况。并与风洞试验资料和一维紊流模型计算结果进行了比较。𝑘
Turbulence due to wave motion and propagation is a very important aspect in sediment transport modeling. The boundary layer characteristic during the process will highly influence the sediment transport mechanism at the bottom. 1D model approach has been widely used to assess the turbulent boundary layer. However, the need for a more detailed model leads to the development of a more sophisticated models. This study presents a 2D turbulent model using 𝑘-𝜔 equation to approach the turbulent boundary layer characteristic in oscillatory wave. The equations are solved using finite-difference center scheme. The model is applied to the case of oscillatory sinusoidal and skew wave. The velocity profile and bed stress were compared to those obtained from wind channel experimental data and 1D 𝑘-𝜔 model from previous study.