较大尺度下潮流物模试验理论可行性的数值研究  

Numerical Study on the Theoretic Feasibility for Physical Simulation of Tidal Process in Large Sea Areas

作　　者：刘学海[1,2] 袁业立[1,2] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]海洋环境科学与数值模拟国家海洋局重点实验室,山东青岛266061

出　　处：《海洋科学进展》2012年第2期163-170,共8页Advances in Marine Science

基　　金：国家海洋局第一海洋研究所基本科研业务费专项--较大海域潮流物模试验的理论可行性及复合模拟技术研究(2007G24);国家海洋局海洋公益性行业科研专项经费项目--胶州湾海湾水动力物理模拟实验研究(200705012);国家海洋局海洋公益性行业科研专项经费项目子课题--海洋监测设备动力环境实验水槽关键技术研究:浪;流;风等现场动力环境研究(201005027-5)

摘　　要：以渤海及其局部海域为例,通过数值模拟量化地转缺失对水动力过程的影响,评价不同空间尺度下实施潮流物理模型试验的理论可行性。结果表明,对整个渤海、辽东湾这么大尺度的海域实施物模试验理论上是不可行的;对90km尺度的渤海湾,地转缺失使模拟结果存在较大偏差;对莱州湾61km尺度的海域可进行物模试验。研究确定60km为实施潮流物模试验一般的理论允许尺度。Taking the Bohai Sea and its several local areas as the study cases, the theoretical feasibility for physical model test of tidal current is evaluated through quantitative analysis of the effects of the absence of Coriolis force on the hydrodynamic processes by means of numerical simulation experiments under the conditions with and without Coriolis force. The results show that it is theoretically unfeasible to make physical model test for such a large scale as the whole Bohai Sea or the Liaodong Bay, and that for the Bohai Bay which has a scale of about 90 km the absence of Coriolis force will give a larger bias to the results from the simulation, while for the Laizhou Bay which has a scale of 61km it could be reasonable to make the physical model test. It is therefore concluded that the spatial scale permitted theoretically for the physical model test of tidal current could be 60 km.

关 键 词：物模试验 潮流 数值模拟 尺度 科氏力 

分 类 号：P731.2[天文地球—海洋科学]