CAJ | 학술논문

将黄渤海海域概化为矩形海湾，山东半岛概化为垂直于海岸的巨型丁坝，形成一个带丁坝型半封闭矩形海湾。利用 DELFT3D-FLOW 计算模块在上述海湾中进行了 M2分潮数值模拟，对其无潮点和辐射状潮流场的特性进行了分析。研究发现：考虑科氏力影响和巨型丁坝反射作用，坝前形成了明显的无潮点，但在等水深条件下并未形成辐射状潮流场，而叠加上倾斜海底地形后其得以形成；无潮点和辐射状潮流场顶端位置受水深影响明显，随着平均水深的增大，无潮点将向湾口和湾中轴线方向偏移，而辐射状潮流场顶端则向湾口方向偏移。研究结果有助于加深对带丁坝型半封闭矩形海湾中驻潮波系统形成机制和动力特性的理解和认识。
장황발해해역개화위구형해만，산동반도개화위수직우해안적거형정패，형성일개대정패형반봉폐구형해만。이용 DELFT3D-FLOW 계산모괴재상술해만중진행료 M2분조수치모의，대기무조점화복사상조류장적특성진행료분석。연구발현：고필과씨력영향화거형정패반사작용，패전형성료명현적무조점，단재등수심조건하병미형성복사상조류장，이첩가상경사해저지형후기득이형성；무조점화복사상조류장정단위치수수심영향명현，수착평균수심적증대，무조점장향만구화만중축선방향편이，이복사상조류장정단칙향만구방향편이。연구결과유조우가심대대정패형반봉폐구형해만중주조파계통형성궤제화동력특성적리해화인식。
A model of a semi-enclosed rectangular basin with a coastal barrier is schematized from the Bohai Sea,the Huanghai Sea and Shandong Peninsula.Using the DELFT3D-FLOW numerical model,we have conducted the an-alyses of the tidal characteristics of the M2 constituent ,the formation mechanism of the amphidromic points and the radial tidal current field in the basin.The results show that,due to the Coriolis force and the barrier reflection, there will always present an amphidromic point in front of the coastal barrier.However,the radial tidal field is ab-sent in the case of uniform water depth with an exception of the existence of mild slope in the nearshore topogra-phy.It is found that the locations of the focal point of the radial tidal current field and the amphidromic point are affected by the mean water depth.With the increase of the mean water depth,the location of the amphidromic point will shift to the entrance and the central axis of the basin,while the focal point of the radial tidal current field will move towards the entrance of the basin.The findings in the paper will facilitate the understanding of the for-mation mechanism and dynamic characteristics of stationary tidal wave in this type of the basin.