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An Enhanced Physically Based Scour Model for Considering Jet Air Entrainment

Rafael Duarte,António Pinheiro,Anton J. Schleiss

Engineering 2016, Volume 2, Issue 3,   Pages 294-301 doi: 10.1016/J.ENG.2016.03.003

Abstract: plunge pools impacted by high-velocity jets, this study presents adaptations of a physically based scourThe modifications regarding jet aeration are implemented in the Comprehensive Scour Model (CSM), allowingit to reproduce the physical-mechanical processes involved in scour formation concerning the three phasesThe modified model is applied to the case of the observed scour hole at the Kariba Dam, with good agreement

Keywords： Air entrainment     Uplift     Rock scour     Dam safety     High-velocity jets     Block stability     Scour assessment    

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Assessment of novel nature-inspired fuzzy models for predicting long contraction scouring and related

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 665-681 doi: 10.1007/s11709-021-0713-0

Abstract: biogeographical-based optimization, and invasive weed optimization for estimating the long contraction scour

Keywords： long contraction scour     prediction     uncertainty     ANFIS model     meta-heuristic algorithm    

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Particle swarm optimization model to predict scour depth around a bridge pier

Shahaboddin SHAMSHIRBAND, Amir MOSAVI, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 855-866 doi: 10.1007/s11709-020-0619-2

Abstract: Scour depth around bridge piers plays a vital role in the safety and stability of the bridges.The former approaches used in the prediction of scour depth are based on regression models or black boxaims to develop new equations using particle swarm optimization as a metaheuristic approach to predict scourMoreover, sensitivity analysis is conducted to achieve the most effective parameters in the estimation of scourThe derived equations can be used as a suitable proxy to estimate scour depth in both experimental and

Keywords： scour depth     bridge design and construction     particle swarm optimization     computational mechanics     artificial    

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Numerical modeling of current-induced scour around multi-wall foundation using large-eddy simulation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 546-565 doi: 10.1007/s11709-023-0943-4

Abstract: However, research concerning the scour mechanism of multi-wall foundations (MWFs) remains scarce, hinderingfour MWFs with different wall arrangements and inflow angles, including the flow field analysis and scourIt was found that the maximum scour depth of MWFs with an inflow angle of 0° was smaller than that ofMeanwhile, changing the inflow angle significantly affects the scour characteristics of MWFs arranged

Keywords： multi-wall foundation     current-induced scour     bridge foundation     large-eddy simulation     numerical analysis    

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Design and construction of scour protection for deep-water group pile foundation structures of two pylons

He Ping,Guan Yijun,Zhang Xiongwen,Zhang Qun,Zhou Jianhua

Strategic Study of CAE 2009, Volume 11, Issue 3,   Pages 44-50

Abstract: description of deep-water group pile foundation, the paper analyzed impact to the bridge safety introduced by scourand its protection and further presentsed different solutions of scour protection for foundation structures

Keywords： Sutong Bridge     deep-water group piles     scour protection     design and construction    

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Wave Current Force Action and Foundation Scour of Marine Bridges

Li Yongle , Fang Chen , Qiu Fang , Tang Haojun , Hu Yong , Xia Yunfeng , Wei Kai , Wu Lianhuo , Yang Shaolin , Xiang Qiqi

Strategic Study of CAE 2019, Volume 21, Issue 3,   Pages 18-24 doi: 10.15302/J-SSCAE-2019.03.011

Abstract: paper sorts out the major problems faced by marine bridges in terms of wave force action and foundation scourenvironmental prediction and pre-warning systems, research on multi-factor coupling effect of environment, scour

Keywords： marine bridge     wave current force     foundation scour    

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Alluvial channel hydrodynamics around tandem piers with downward seepage

Rutuja CHAVAN, Wenxin HUAI, Bimlesh KUMAR

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1445-1461 doi: 10.1007/s11709-020-0648-x

Abstract: In this paper, we report the turbulent flow structures and the scour geometry around two piers with differentStreamwise velocity was found to be maximum near the bed downstream of the piers and at the edge of the scourThe reduction percentages of scour depth at the rear pier compared with the front one were approximately

Keywords： scour     seepage     Strouhal number     tandem arrangement     turbulent characteristics    

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Structural pavement assessment in Germany

Lutz PINKOFSKY, Dirk JANSEN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2,   Pages 183-191 doi: 10.1007/s11709-017-0412-z

Abstract: motorways and trunk roads encourages the use of innovative, sound and reliable methods for the structural assessmentEssential elements for this are data, which allow a reliable assessment.For a holistic approach to structural pavement assessment performance orientated measurements will beThe paper summarizes the actual assessment procedures in Germany as well as the ongoing work on the development

Keywords： pavement assessment     Germany     structure     system    

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Environmental and human health impact assessment of major interior wall decorative materials

Bingqing ZHANG, Ruochen ZENG, Xiaodong LI

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 406-415 doi: 10.1007/s42524-019-0025-4

Abstract: The environmental impact assessment follows life cycle assessment (LCA) methodology and applies BuildingThe assessment scope, associated emissions, and territorial scope of various emissions are defined toAssessment results reveal that the integrated impact of interior latex is lower than that of non-woven

Keywords： life cycle assessment     human health impact     integrated assessment     interior wall decorative material     green    

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SUSTAINABLE NITROGEN MANAGEMENT INDEX: DEFINITION, GLOBAL ASSESSMENT AND POTENTIAL IMPROVEMENTS

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 356-365 doi: 10.15302/J-FASE-2022458

Abstract:

● A composite N management index is proposed to measure agriculture sustainability.

Keywords： global assessment     indicator     nitrogen management     sustainable agriculture     sustainable development goals    

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Game theoretic analysis of environmental impact assessment system in China

CHENG Hongguang, PU Xiao, GONG Li, QI Ye

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 448-453 doi: 10.1007/s11783-007-0071-8

Abstract: Environmental impact assessment (EIA) system has been established in China since 1973.

Keywords： public     impact assessment     Environmental impact     general    

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Creep life assessment of aero-engine recuperator based on continuum damage mechanics approach

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0702-6

Abstract: The creep life of an aeroengine recuperator is investigated in terms of continuum damage mechanics by using finite element simulations. The effects of the manifold wall thickness and creep properties of brazing filler metal on the operating life of the recuperator are analyzed. Results show that the crack initiates from the brazing filler metal located on the outer surface of the manifold with the wall thickness of 2 mm and propagates throughout the whole region of the brazing filler metal when the creep time reaches 34900 h. The creep life of the recuperator meets the requirement of 40000 h continuous operation when the wall thickness increases to 3.5 mm, but its total weight increases by 15%. Decreasing the minimum creep strain rate with the enhancement of the creep strength of the brazing filler metal presents an obvious effect on the creep life of the recuperator. At the same stress level, the creep rupture time of the recuperator is enhanced by 13 times if the mismatch between the minimum creep rate of the filler and base metal is reduced by 20%.

Keywords： creep     life assessment     brazed joint     continuum damage mechanics     aeroengine recuperator    

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Fate and risk assessment of emerging contaminants in reclaimed water production processes

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-021-1392-8

Abstract:

• PPCPs had the highest removal efficiency in A2O combined with MBR process (86.8%).

Keywords： Trace organic pollution     Antibiotic resistance genes     Reclaimed wastewater     Sludge     Risk assessment    

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Environmental, social, and economic assessment of energy utilization of crop residue in China

Yueling ZHANG, Junjie LI, Huan LIU, Guangling ZHAO, Yajun TIAN, Kechang XIE

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 308-319 doi: 10.1007/s11708-020-0696-x

Abstract: The methodologies employed to achieve this objective are environmental life cycle assessment (E-LCA),life cycle cost (LCC), and social life cycle assessment (S-LCA).

Keywords： crop residue     life cycle assessment     life cycle cost     social life cycle assessment     energy production    

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Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 412-427 doi: 10.1007/s11708-023-0879-3

Abstract: technology has the potential to reduce CO2 emissions, but its carbon footprint and cost assessment

Keywords： carbon capture     utilization and storage (CCUS)     carbon footprint     levelized cost of liquid     lifecycle assessment    

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Title Author Date Type Operation

An Enhanced Physically Based Scour Model for Considering Jet Air Entrainment

Rafael Duarte,António Pinheiro,Anton J. Schleiss

Journal Article

Assessment of novel nature-inspired fuzzy models for predicting long contraction scouring and related

Journal Article

Particle swarm optimization model to predict scour depth around a bridge pier

Shahaboddin SHAMSHIRBAND, Amir MOSAVI, Timon RABCZUK

Journal Article

Numerical modeling of current-induced scour around multi-wall foundation using large-eddy simulation

Journal Article

Design and construction of scour protection for deep-water group pile foundation structures of two pylons

He Ping,Guan Yijun,Zhang Xiongwen,Zhang Qun,Zhou Jianhua

Journal Article

Wave Current Force Action and Foundation Scour of Marine Bridges

Li Yongle , Fang Chen , Qiu Fang , Tang Haojun , Hu Yong , Xia Yunfeng , Wei Kai , Wu Lianhuo , Yang Shaolin , Xiang Qiqi

Journal Article

Alluvial channel hydrodynamics around tandem piers with downward seepage

Rutuja CHAVAN, Wenxin HUAI, Bimlesh KUMAR

Journal Article

Structural pavement assessment in Germany

Lutz PINKOFSKY, Dirk JANSEN

Journal Article

Environmental and human health impact assessment of major interior wall decorative materials

Bingqing ZHANG, Ruochen ZENG, Xiaodong LI

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT INDEX: DEFINITION, GLOBAL ASSESSMENT AND POTENTIAL IMPROVEMENTS

Journal Article

Game theoretic analysis of environmental impact assessment system in China

CHENG Hongguang, PU Xiao, GONG Li, QI Ye

Journal Article

Creep life assessment of aero-engine recuperator based on continuum damage mechanics approach

Journal Article

Fate and risk assessment of emerging contaminants in reclaimed water production processes

Journal Article

Environmental, social, and economic assessment of energy utilization of crop residue in China

Yueling ZHANG, Junjie LI, Huan LIU, Guangling ZHAO, Yajun TIAN, Kechang XIE

Journal Article

Lifecycle carbon footprint and cost assessment for coal-to-liquid coupled with carbon capture, storage

Journal Article