Climate Change Data Portal
| DOI | 10.1016/j.advwatres.2020.103510 |
| 3-D dam break flow simulations in simplified and complex domains | |
| Munoz D.H.; Constantinescu G. | |
| 发表日期 | 2020 |
| ISSN | 0309-1708 |
| 卷号 | 137 |
| 英文摘要 | This paper presents a 3-D, non-hydrostatic, Reynolds-Averaged Navier-Stokes (RANS) model using the volume of fluid (VOF) approach to simulate dam-break flows. Good agreement is observed between the 3-D model predictions and results of dam-break experiments performed in the laboratory. The 3-D model is then applied to predict flood-wave propagation induced by the sudden failure of two flood-protection dams in Iowa, USA. Results are also compared with predictions of 2-D, hydrostatic, depth-averaged models. The 2-D model simulations using the precalibrated values of the Manning's coefficients underpredict the speed of propagation of the flood wave and the area inundated by the flood compared to the 3-D model predictions. A methodology is presented to recalibrate the 2-D model which improves the agreement with the 3-D model predictions. Simulation results also show that strong 3-D effects are generated in regions of strong curvature of the river channel, near sudden constrictions and obstacles, and during the times the mean flow direction varies significantly over the flow depth. Such 3-D effects cannot be captured by the 2-D model even after recalibration, pointing toward the need to use 3-D models for detailed flood mapping. © 2020 |
| 关键词 | Computer simulationDamsFlood controlForecastingHydraulicsNavier Stokes equationsWave propagationDam-break experimentsDam-break flowDepth-averaged modelsFlood mitigationFlood wave propagationManning's coefficientsMean-flow directionsReynolds averaged navier-stokes modelsFloodsdam failureflood controlNavier-Stokes equationsthree-dimensional modelingtwo-dimensional modelingwave propagationIowaUnited States |
| 语种 | 英语 |
| 来源机构 | Advances in Water Resources |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131853 |
| 推荐引用方式 GB/T 7714 | Munoz D.H.,Constantinescu G.. 3-D dam break flow simulations in simplified and complex domains[J]. Advances in Water Resources,2020,137. |
| APA | Munoz D.H.,&Constantinescu G..(2020).3-D dam break flow simulations in simplified and complex domains.,137. |
| MLA | Munoz D.H.,et al."3-D dam break flow simulations in simplified and complex domains".137(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Munoz D.H.]的文章 |
| [Constantinescu G.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Munoz D.H.]的文章 |
| [Constantinescu G.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Munoz D.H.]的文章 |
| [Constantinescu G.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
