MATLAB code for Local characteristics of sand wave patterns are governed by underlying sand bank: A linear stability approach

This dataset contains the MATLAB codes needed to compute the basic state flow over a static sand bank topography as well as the perturbed modes containing flow patterns, sea surface elevation and topography following from a linear stability approach.The model is forced with an oscillatory depth-averaged flow, representative of the tidal flow over a sand bank.The solution is obtained by solving the Generalized Eigenvalue Problem posed by the dimensionless momentum, mass balance and Exner equations, and corresponding boundary conditions.

本数据集包含用于计算静态沙坝地形上基本态流动的MATLAB代码，以及基于线性稳定性方法得到的、包含流动形态、海面高程与地形扰动的扰动模态数据。该模型以振荡深度平均流作为强迫项，可表征沙坝上方的潮汐流动。其求解过程通过求解由无量纲化动量方程、质量平衡方程与埃克纳方程（Exner equations）及对应边界条件构成的广义特征值问题完成。