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首页> 外文期刊>Hydrology research >3D modelling of the flow distribution in the delta of Lake Oyeren, Norway
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3D modelling of the flow distribution in the delta of Lake Oyeren, Norway

机译：挪威Oyeren湖三角洲水流分布的3D建模

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摘要

A 3D numerical model was used to compute the discharge distribution in the channel branches of Lake Oyeren's delta in Norway. The model solved the Navier-Stokes equations with the k-e turbulence model on a 3D unstructured grid. The bathymetry dataset for the modelling had to be combined from different data sources. The results for three different flow situations in 1996 and 1997 showed a relative accuracy of the computed discharges within the range of 0 to ± 20% compared with field measurements taken by an ADCP at 13 cross sections of the distributary channels. The factors introducing the most error in the computed results are believed to be uncertainties concerning the bathymetry. A comparison between the computational results of the older morphology data from 1985-1990 and the model morphology from 1995-2004 indicated that morphological changes in this period had already had consequences for the flow distribution in some channels. Other important error sources were the inevitable use of averaged water level gradients because of unavailable water level measurements within the delta.
机译：使用3D数值模型来计算挪威Oyeren湖三角洲河道分支中的流量分布。该模型在3D非结构化网格上使用k-e湍流模型求解了Navier-Stokes方程。用于建模的测深数据集必须来自不同的数据源。在1996年和1997年的三种不同流量情况下的结果表明，与ADCP在分流通道的13个横截面处进行的现场测量相比，所计算的流量的相对精度在0到±20％的范围内。据信在计算结果中引入最大误差的因素是与测深法有关的不确定性。将1985-1990年的较早形态学数据的计算结果与1995-2004年的模型形态学进行的比较表明，这一时期的形态学变化已经对某些通道的流量分布产生了影响。其他重要的误差来源是由于三角洲内没有可用的水位测量结果而不可避免地使用了平均水位梯度。

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  • 来源
    《Hydrology research》 |2010年第2期|p.92-103|共12页
  • 作者

    Peggy Zinke; Nils Reidar Boe Olsen; Jim Bogen; Nils Ruether;

  • 作者单位

    Department of Hydraulic and Environmental Engineering, Norwegian university of Science and Technology, S. P. Andersens vei 5, N-7491 Trondheim, Norway;

    Department of Hydraulic and Environmental Engineering, Norwegian university of Science and Technology, S. P. Andersens vei 5, N-7491 Trondheim, Norway;

    Norwegian water Resources and Energy Directorate, Drammensveien 211, N-0281 Oslo, Norway;

    Department of Hydraulic and Environmental Engineering, Norwegian university of Science and Technology, S. P. Andersens vei 5, N-7491 Trondheim, Norway;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CFD modelling; delta; flow distribution; oyeren; 3D numerical model;

    机译：CFD建模;三角洲;流量分配;oyeren;3D数值模型;

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