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首页> 外文期刊>Journal of Hydroinformatics >Modelling floods in urban areas and representation of buildings with a method based on adjusted conveyance and storage characteristics
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Modelling floods in urban areas and representation of buildings with a method based on adjusted conveyance and storage characteristics

机译：使用基于调整后的运输和存储特性的方法对城市洪水和建筑物表示进行建模

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摘要

The present paper reviews several approaches that can be used in capturing urban features in coarse resolution two-dimensional (2D) models and it demonstrates the effectiveness of a new approach against the straightforward 2D modelling approach on a hypothetical and a real-life case study work. The case study work addresses the use of coarse grid resolutions in 2D non-inertia models. The 2D non-inertia model used solves continuity and momentum equations over the cells of the coarse model while taking the minimum elevation as a surface level. The volume stored in every cell is calculated as a volume-depth relationship. In order to replicate restriction in conveyances in x-y directions of fine resolution models due to building blocks, the friction values of the coarse-resolution model are adjusted to match the results of the high-resolution model. The work presented in this paper shows the possibility of applying a 2D non-inertia model more effectively in urban flood modelling applications whilst still making use of the high resolution of topographic data that can nowadays be easily acquired.
机译：本文概述了可用于在粗糙分辨率的二维（2D）模型中捕获城市特征的几种方法，并论证了在假设的和实际的案例研究工作中，这种新方法相对于简单的2D建模方法的有效性。 。案例研究工作解决了在2D非惯性模型中使用粗网格分辨率的问题。所使用的2D非惯性模型以最小仰角为表面水准，求解了粗略模型的单元上的连续性和动量方程。计算存储在每个单元格中的体积作为体积深度关系。为了复制由于构造块导致的精细分辨率模型在x-y方向上的传输限制，调整了粗分辨率模型的摩擦值以匹配高分辨率模型的结果。本文介绍的工作表明，在城市洪水建模应用中更有效地应用2D非惯性模型的可能性，同时仍然利用当今可以轻松获取的高分辨率地形数据。

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  • 来源
    《Journal of Hydroinformatics》 |2013年第4期|1150-1168|共19页
  • 作者

    Zoran Vojinovic; Solomon Seyoum; Mwanaisha H. Salum; Roland K. Price; Ahmad K. Fikri; Yared Abebe;

  • 作者单位

    Department for Hydroinformatics and Knowledge Management, UNESCO-IHE, Westvest 7, 2601 DA Delft, The Netherlands;

    Department for Hydroinformatics and Knowledge Management, UNESCO-IHE, Westvest 7, 2601 DA Delft, The Netherlands;

    Department for Hydroinformatics and Knowledge Management, UNESCO-IHE, Westvest 7, 2601 DA Delft, The Netherlands;

    Department for Hydroinformatics and Knowledge Management, UNESCO-IHE, Westvest 7, 2601 DA Delft, The Netherlands;

    Department for Hydroinformatics and Knowledge Management, UNESCO-IHE, Westvest 7, 2601 DA Delft, The Netherlands;

    Department for Hydroinformatics and Knowledge Management, UNESCO-IHE, Westvest 7, 2601 DA Delft, The Netherlands;

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

    2D models; flood modelling; spatial resolution; topography; urban areas;

    机译：2D模型;洪水建模;空间分辨率地形;城市地区;

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