海洋学报(中文版)
海洋學報(中文版)
해양학보(중문판)
ACTA OCEANOLOGICA SINICA
2014年
1期
126-130
,共5页
姚炎明%彭辉%杜雅杰%刘莲
姚炎明%彭輝%杜雅傑%劉蓮
요염명%팽휘%두아걸%류련
象山港%水交换%矩阵%delft3 D
象山港%水交換%矩陣%delft3 D
상산항%수교환%구진%delft3 D
Xiangshan Harbour%water exchange%matrix%delft3D
在验证良好的三维斜压潮流数学模型的基础上,将象山港划分成7个海区,以7种不同的溶解态保守性物质为示踪剂,建立对流-扩散型的海湾水交换数值模型,采用关联矩阵法来描述各区之间以及各区与外海之间的水交换特性。通过不同示踪剂的浓度分布,计算了15、30、45、60和80 d的水交换矩阵。由各时刻水交换矩阵可知,在象山港的7个子区中与湾外水的水交换速度最快的为Ⅰ区,最慢的为Ⅶ区。Ⅲ区(西沪港)、Ⅵ区(黄墩港)和Ⅶ区(铁港)内水体与湾外海水之间的水交换速度缓慢,但与区域外水体之间的交换速度要明显快于其他几个海区。从水交换矩阵可以看出西沪港、黄墩港和3个内港之间相互交换的海水量很小。
在驗證良好的三維斜壓潮流數學模型的基礎上,將象山港劃分成7箇海區,以7種不同的溶解態保守性物質為示蹤劑,建立對流-擴散型的海灣水交換數值模型,採用關聯矩陣法來描述各區之間以及各區與外海之間的水交換特性。通過不同示蹤劑的濃度分佈,計算瞭15、30、45、60和80 d的水交換矩陣。由各時刻水交換矩陣可知,在象山港的7箇子區中與灣外水的水交換速度最快的為Ⅰ區,最慢的為Ⅶ區。Ⅲ區(西滬港)、Ⅵ區(黃墩港)和Ⅶ區(鐵港)內水體與灣外海水之間的水交換速度緩慢,但與區域外水體之間的交換速度要明顯快于其他幾箇海區。從水交換矩陣可以看齣西滬港、黃墩港和3箇內港之間相互交換的海水量很小。
재험증량호적삼유사압조류수학모형적기출상,장상산항화분성7개해구,이7충불동적용해태보수성물질위시종제,건립대류-확산형적해만수교환수치모형,채용관련구진법래묘술각구지간이급각구여외해지간적수교환특성。통과불동시종제적농도분포,계산료15、30、45、60화80 d적수교환구진。유각시각수교환구진가지,재상산항적7개자구중여만외수적수교환속도최쾌적위Ⅰ구,최만적위Ⅶ구。Ⅲ구(서호항)、Ⅵ구(황돈항)화Ⅶ구(철항)내수체여만외해수지간적수교환속도완만,단여구역외수체지간적교환속도요명현쾌우기타궤개해구。종수교환구진가이간출서호항、황돈항화3개내항지간상호교환적해수량흔소。
Based on a well-verified three-dimensional tidal flow mathematical model,the Xiangshan Harbour is di-vieled into seven areas,seven different dissolved conservative materials are used as tracers,an advection-diffusion water exchange numerical model is established,and an associated matrix method is applied to describing water ex-change characteristics between districts,and between these districts and the sea.The concentration distribution of different tracers,is used to calculate water exchange matrixes of the 15th,30th,45th,60th and 80th day.According to the water exchange matrix in each moment,among the seven regions of the Xiangshan Harbour,exchanging with the outside water in Region I is the fastest,which has an exchange rate of 85%in 15 d,while the slowest RegionⅦonly reaches about 10% after the same duration.In RegionⅢ(the Xihu Inlet),RegionⅥ(the Huangdun Inlet) and RegionⅦ (the Tiegang Inlet)the water exchange speed is slow between these regions and the outside water, but is still significantly faster than other regions.The fastest is in RegionⅥ,in which the original water accounts for 1. 5% on the 15th day,and 0. 3%on the 60th day.And the slowest is in Huangdun InletⅣ,in which the o-riginal water accounts for 22. 7% on the 15th day,and 4. 4%on the 60th day.Furthermore,the matrix suggests that water exchanges between the Xihu Inlet and the Huangdun Inlet and three inner inlets are very weak.