黄茅海水域三维水动力数值模拟

基于k-kl紊流模型,联合第三代海浪模式SWAN,建立了波流共同作用下的三维水动力数值模式,并应用到黄茅海水动力数值模拟研究中.考虑到实际河口和海底地形,通过平面和垂向三维坐标变换,在空间完全交错的网格系统上离散化控制方程组,采用内外模式分裂技术求解.数值模拟结果表明:计算值与实测值符合良好,模型较好的复演了黄茅海水域的三维水动力状况,可用于进一步的研究.

Three-dimensional hydrodynamic numerical simulation of Huangmaohai Sea Waters

The three-dimensional hydrodynamic numerical simulation model under wave current was established and applied to the hydrodynamic numerical simulation of Huangmaohai Sea waters, on the basis of k-kl turbulence model, together with Sea Wave Model III-SWAN. Considering the actual estuary terrain and sea floor relief, the planar and vertical three-dimensional coordinate transformation was adopted;the governing equation set was discretized on the spatially-staggered grid system; and the internal and external model splitting technique was used for solving. The results of numerical simulation show that the calculated values accord with the observed values well; and the model demonstrates the three-dimensional hydrodynamic conditions of Huangmaohai Sea waters, and can apply for further study.