Effective simulation of flow in a moderately curved bend with a single short branch to support the design optimization of river-branch–plant configurations

Song, Xiaolong; Huang, Hai Ming; Chen, Youjun; Xu, Haijue; Bai, Yuchuan

doi:10.1080/19942060.2022.2093276

Cited by 14 publications

(3 citation statements)

References 48 publications

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“…According to subject frontiers, at some great value states of mean annual width-depth ratio (B/H), meanders may turn into the multi-thread river pattern within the smooth external edges of the river floodplain in the mode of "introverted development" under the weakly resistant environments (Eaton et al, 2010) or evolve forward into the systematic out-branching river pattern in the mode of "extroverted development" under the strongly resistant environments (Song et al, 2022b;Song et al, 2022a), when the ratio of curvature radius to width (r/B) approximates the critical value of 3.0. If actual conditions are right to keep away from these two extremely branching trends, meanders can maintain stability in the following two temporal changing patterns in the planform: "meander straightening" or "meander developing", as Nagata et al (2000) classified.…”

Section: Discussionmentioning

confidence: 99%

Long-term evolution of meandering channel planforms in response to the mean annual flow and width–depth ratio

Song,

Xu,

Bai

2023

International Journal of Sediment Research

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Section: Discussionmentioning

confidence: 99%

Long-term evolution of meandering channel planforms in response to the mean annual flow and width–depth ratio

Song,

Xu,

Bai

2023

International Journal of Sediment Research

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“…Among them, Ningxia had the highest per capita WF with 760.8 m 3 and 762.4 m 3 in 2012 and 2017, respectively. In addition, Qinghai Province, which is located in Northwest China, had the lowest WF but also a high per capita WF because of the vastness of the region and its sparse population (Li et al 2021, Song et al 2022b. Henan and Shandong, provinces with large populations in China, had the lowest per capita WF of 180.9 m 3 and 193.1 m 3 in 2012 and 2017, respectively, with less than onethird of Ningxia's per capita WF.…”

Section: Spatial-temporal Distribution Of Wf In the Yrbmentioning

confidence: 99%

Revealing the changes in water footprint at the provincial level and their drivers in the Yellow River Basin, China

Xia,

Tian,

et al. 2023

Environ. Res. Commun.

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Water scarcity has become the most significant limiting factor for sustainable economic and social development in the Yellow River Basin (YRB). Despite this, most current studies on water resources in the YRB from a water footprint (WF) perspective have focused on WF measurements and have explored the influencing factors of WF changes in certain industries, while the impact mechanisms driving regional WF changes remain unclear. To bridge this research gap, the WF of nine provinces in the YRB for 2012 and 2017 were quantified using an environmentally extended multi-regional input-output model (EE-MRIO), and the driving forces of regional WF changes were explored via structural decomposition analysis (SDA). The results showed that the WF of the YRB increased by 3.8% to 113.64 billion m3 between 2012 and 2017. With rapid economic development and enhanced inter-regional trade links, the external WF has played an important role in meeting local water demand. Technological advances and production structure adjustments contribute to the reduction of the WF, thus promoting the sustainable use and management of the YRB's water resources. Both consumption patterns and final demand per capita have dominated the YRB's WF growth, particularly in the economically developed middle and lower reaches, where urban household consumption drove the largest WF, accounting for over 40%. Therefore, in the future, continuous optimization of the consumption structure and guidance of green consumption awareness are expected to contribute more to the reduction in WF. The findings of this study reveal the primary causes of WF changes in the YRB and offer a theoretical justification for the formulation of water conservation and sustainable utilization policies.

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“…Although specific information of the 2D flow field is not explicitly resolved, the overall accuracy of 1D models is sufficient when a high‐quality topographic surface model is provided (Vozinaki et al, 2017). Three‐dimensional (3D) models are capable of providing a higher level of detail compared to 1D and 2D models, but high‐fidelity 3D models are typically reserved for localized investigations (Song et al, 2022) due to their complexity and computational expense. The computational efficiency of 1D hydraulic models also lends well to the evaluation of numerous alternative scenarios such as those involved with uncertainty analysis.…”

Section: Introductionmentioning

confidence: 99%

Managed diversion lead time effects on flood response in a tidal freshwater river

Miller

2023

J Flood Risk Management

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River diversions are a commonly used water management tool throughout the world. Low‐gradient coastal rivers exhibit complex floodplain interactions and are subject to multiple uncertain drivers of future flood risk. The interacting factors make quantification of downstream diversion effects on ambient flood hazards in coastal riverine ecosystems challenging. This article analyzes the effects of a managed ecological diversion (MED) on downstream flood hazards in the flood‐prone tidal freshwater Vermilion River system situated within the Atchafalaya Basin region of Louisiana, USA. A flexible and efficient hydraulic and hydrologic (H&H) modeling setup and counterfactual approach is utilized to develop and analyze 60 simulation scenarios aimed at quantifying the effects of an existing baseflow augmentation program on downstream flood hazards under uncertain future conditions. The analysis demonstrated the significance of preemptive diversion closure on the downstream flood levels in downstream rivers. The role of wetland topography and residual floodplain storage on MED‐induced flood response was also highlighted. A variety of uncertain parameter/forcing scenarios were also evaluated to establish robustness of the findings and to extend the results to more general settings. The study provides insights on downstream flood response induced by MEDs, which are expected to become more prevalent in the future.

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Effective simulation of flow in a moderately curved bend with a single short branch to support the design optimization of river-branch–plant configurations

Cited by 14 publications

References 48 publications

Long-term evolution of meandering channel planforms in response to the mean annual flow and width–depth ratio

Long-term evolution of meandering channel planforms in response to the mean annual flow and width–depth ratio

Revealing the changes in water footprint at the provincial level and their drivers in the Yellow River Basin, China

Managed diversion lead time effects on flood response in a tidal freshwater river

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