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Uncertainty quantification of stability and damage detection parameters of coupled hydrodynamic-ground

Nazim Abdul NARIMAN, Tom LAHMER, Peyman KARAMPOUR

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 303-323 doi: 10.1007/s11709-018-0462-x

Abstract: In this paper, models of the global system of the Koyna dam have been created using ABAQUS software considering the dam-reservoir-foundation interaction. Non coupled models and the coupled models were compared regarding the horizontal displacement of the dam crest and the differential settlement of the dam base in clay foundation. Meta models were constructed and uncertainty quantification process was adopted by the support of Sobol’s sensitivity indices considering five uncertain parameters by exploiting Box-Behnken experimental method. The non coupled models results determined overestimated predicted stability and damage detection in the dam. The rational effects of the reservoir height were very sensitive in the variation of the horizontal displacement of the dam crest with a small interaction effect with the beta viscous damping coefficient of the clay foundation. The modulus of elasticity of the clay foundation was the decisive parameter regarding the variation of the differential settlement of the dam base. The XFEM approach has been used for damage detection in relation with both minimum and maximum values of each uncertain parameter. Finally the effects of clay and rock foundations were determined regarding the resistance against the propagation of cracks in the dam, where the rock foundation was the best.

Keywords： massed foundation     hydrodynamic pressure     Box-Behnken method     meta model     Sobol’s sensitivity indices    

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Simplified analytical solution for free vibration characteristics of Hardfill dam

XIAO Wei, HE Yunlong, ZHANG Yanfeng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 219-225 doi: 10.1007/s11709-008-0037-3

Abstract: based on one-dimensional shear wedge theory, in which the influences of the upstream concrete face and hydrodynamicpressure of water on the dams’ natural frequencies and modes are discussed.

Keywords： upstream concrete     hydrodynamic pressure     vibration     one-dimensional     applicability    

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Recent progress in hydrodynamic characteristics research and application of annular centrifugal extractors

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 854-873 doi: 10.1007/s11705-022-2156-0

Abstract: More recently, research on hydrodynamic behavior and structural optimization has received widespreadHence, this paper reviews research progress regarding ACE in terms of hydrodynamic characteristics and

Keywords： annular centrifugal extractor     hydrodynamic characteristics     structure optimization     the latest application    

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Identification of pollution sources in rivers using a hydrodynamic diffusion wave model and improved

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1685-1

Abstract:

● A hydrodynamic-Bayesian inference model was developed for water

Keywords： Identification of pollution sources     Water quality restoration     Bayesian inference     Hydrodynamic model    

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Numerical analysis of hydrodynamic process of circular-translational-moving polishing (CTMP)

ZHAI Wenjie, LIU Changxiong, LIANG Yingchun

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 441-448 doi: 10.1007/s11465-008-0074-6

Abstract: mechanisms of CTMP and determine the optimum process variables in a CTMP process, a three-dimensional hydrodynamicThe instantaneous distribution of fluid pressure is obtained, which shows that a negative pressure existsThe reason for negative pressure in CTMP and its effect on polishing is discussed.

Keywords： numerical analysis     practical CTMP     circular-translational-moving polishing     CTMP     different    

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Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 255-265 doi: 10.1007/s11783-010-0279-x

Abstract: The water quality pollution and ecological deterioration in peri-urban rivers are usually serious under rapid urbanization and economic growth. In the study, a typical peri-urban river, Nansha River, was selected as a case study to discuss the scheme of peri-urban river rehabilitation. Located in the north part of the Beijing central region, the Nansha River watershed has been designated as an ecologically friendly garden-style area with high-tech industry parks and upscale residential zones. However, the Nansha River is currently seriously contaminated by urban and rural pollutants from both nonpoint sources (NPS) and point sources (PS). In this study, the pollutant loads from point sources and nonpoint sources in the Nansha River watershed were first assessed. A coupled model, derived from the Environmental Fluid Dynamics Code and Water Quality Analysis Simulation Program, was developed to simulate the hydrodynamics and water quality in the Nansha River. According to the characteristics of the typical peri-urban river, three different PS and NPS control scenarios were designed and examined by modeling analyses. Based on the results of the scenario analysis, a river rehabilitation scheme was recommended for implementation.

Keywords： peri-urban river     coupled hydrodynamic-water quality modeling     scenario analysis     river rehabilitation    

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Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating

Shanwei Hu, Xinhua Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 579-590 doi: 10.1007/s11705-020-1953-6

Abstract: modeling scheme was implemented by using the EMMS model and/or its extension models to compute the hydrodynamicparameters of the sub-reactors, to achieve the mass conservation and pressure balance in each circulation

Keywords： multi-loop circulating fluidized bed     mathematical modeling     energy minimization multiscale     virtual fluidization     mesoscale structure    

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Recent Developments in Hydrodynamic Cavitation Reactors: Cavitation Mechanism, Reactor Design, and Applications Review

Haoxuan Zheng, Ying Zheng, Jesse Zhu

Engineering 2022, Volume 19, Issue 12,   Pages 180-198 doi: 10.1016/j.eng.2022.04.027

Abstract:

Hydrodynamic cavitation is considered to be a promising technology for process intensification, dueIn the past decade, advancements have been made in the fundamental understanding of hydrodynamic cavitationTwo types of hydrodynamic cavitation reactors—namely, stationary and rotational—are comparedThe design parameters of a hydrodynamic cavitation reactor and reactor performance at the laboratoryThe unique features of hydrodynamic cavitation have been widely applied to various chemical reactions

Keywords： Hydrodynamic cavitation     Cavitation nuclei     Hydroxyl radicals     Stationary/rotational hydrodynamic cavitation    

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Study on hydrodynamic and synthetic water quality model for river networks

Zhang Mingliang,Shen Yongming

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 78-83

Abstract: one-dimensional Saint-Venant equation and the river-junction-river method is applied to resolve the hydrodynamic

Keywords： Preissmann implicit scheme     river networks     hydrodynamic model     water quality model     WASP model    

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Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 86-90 doi: 10.1007/s11465-008-0012-7

Abstract: The curves that illustrate the relationships between the pressure differences of the inlet and outletThe pressure and velocity distributions of the flow field were proposed.The performance parameters of the hydrodynamic torque converter were predicted.The calculation method, and the proposed pressure and velocity distribution of the flow field, have practicalsignificance for the design and improvement of a hydrodynamic torque converter.

Keywords： velocity distribution     calculation     numerical simulation     three-element centrifugal     converter    

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Theory and Practice of Hydrodynamic Reconstruction in Plain River Networks Article

Hongwu Tang, Saiyu Yuan, Hao Cao

Engineering 2023, Volume 24, Issue 5,   Pages 202-212 doi: 10.1016/j.eng.2022.01.015

Abstract: From this, a theory for the hydrodynamic reconstruction of plain river networks is proposed.The optimal temporal and spatial distributions of hydrodynamic patterns is reconstructed in order toOn this basis, a complete theoretical method and technical system for multiscale hydrodynamic reconstruction

Keywords： Plain river network     Water security problems     Hydrodynamic reconstruction     Multi-objective     Integrated    

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antifouling, and permeation properties of polysulfone ultrafiltration membrane: thermodynamic and formation hydrodynamic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1484-1502 doi: 10.1007/s11705-023-2331-y

Abstract: hydrophilic poly(ethylene-co-vinyl alcohol) (EVOH) were used herein to precisely control the structure and hydrodynamicThe PSF/EVOH behavior was changed from immediate to delayed segregation due to a change in the hydrodynamicFinally, from the thermodynamic and hydrodynamic results, valuable insights into the selection of hydrophilic

Keywords： polysulfone     blend modification     ultrafiltration membrane     formation hydrodynamics     poly(ethylene-co-vinyl alcohol) copolymer    

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Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: decision-making approach for the deviation correction trajectory and posture rectification load for an earth pressure

Keywords： additional position change     deviation correction trajectory     earth pressure balance shield     mechanical    

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Combustion instability detection using the wavelet detail of pressure fluctuations

JI Junjie, LUO Yonghao

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 116-120 doi: 10.1007/s11708-008-0019-0

Abstract: A combustion instability detection method that uses the wavelet detail of combustion pressure fluctuationsTo confirm this method, combustion pressure fluctuations in a stoker boiler are recorded at stable andunstable combustion with a pressure transducer.It shows that the wavelet approximation indicates the general pressure change in the furnace, and the

Keywords： comparison     wavelet approximation     pressure transducer     general pressure     consistent    

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A model of

Jingyu WANG,Hongwei FANG,Guojian HE,Lei HUANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 845-853 doi: 10.1007/s11783-014-0708-3

Abstract: The impact on the environment of radionuclide release from nuclear power plants has attracted increased attention, especially after the accident at Fukushima Daiichi Nuclear Power Plant in Japan. Based on the mechanisms of adsorption/desorption at solid/liquid interfaces and a surface micromorphology model of sediments, a theoretical expression of the distribution coefficient is derived. This coefficient has significant effects on the distribution of radionuclide in seawater, suspended sediment and seabed sediment. is then used to simulate Sr transport in the sea near the Daya Bay Nuclear Power Plant. The simulation results are compared with field measurements of tidal level, current velocity, suspended sediment concentration and Sr concentrations in the same period. Overall, the simulated results agree well with the field measured data. Thus, the derived expression for is capable of interpreting realistic adsorption/desorption processes. What’s more, conclusion is drawn that about 40% Sr released by Daya Bay Nuclear Power Plant will be adsorbed by suspended sediment and 20% by seabed sediment, only about 40% Sr will remain in the sea near Daya Bay Nuclear Power Plant in South China Sea.

Keywords： distribution coefficient     Daya Bay     hydrodynamic     sediment transport     radionuclide transport    

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Title Author Date Type Operation

Uncertainty quantification of stability and damage detection parameters of coupled hydrodynamic-ground

Nazim Abdul NARIMAN, Tom LAHMER, Peyman KARAMPOUR

Journal Article

Simplified analytical solution for free vibration characteristics of Hardfill dam

XIAO Wei, HE Yunlong, ZHANG Yanfeng

Journal Article

Recent progress in hydrodynamic characteristics research and application of annular centrifugal extractors

Journal Article

Identification of pollution sources in rivers using a hydrodynamic diffusion wave model and improved

Journal Article

Numerical analysis of hydrodynamic process of circular-translational-moving polishing (CTMP)

ZHAI Wenjie, LIU Changxiong, LIANG Yingchun

Journal Article

Scenario analysis of water pollution control in the typical peri-urban river using a coupled hydrodynamic-water

Haifeng JIA, Shuo WANG, Mingjie WEI, Yansong ZHANG

Journal Article

Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating

Shanwei Hu, Xinhua Liu

Journal Article

Recent Developments in Hydrodynamic Cavitation Reactors: Cavitation Mechanism, Reactor Design, and Applications

Haoxuan Zheng, Ying Zheng, Jesse Zhu

Journal Article

Study on hydrodynamic and synthetic water quality model for river networks

Zhang Mingliang,Shen Yongming

Journal Article

Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Journal Article

Theory and Practice of Hydrodynamic Reconstruction in Plain River Networks

Hongwu Tang, Saiyu Yuan, Hao Cao

Journal Article

antifouling, and permeation properties of polysulfone ultrafiltration membrane: thermodynamic and formation hydrodynamic

Journal Article

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Journal Article

Combustion instability detection using the wavelet detail of pressure fluctuations

JI Junjie, LUO Yonghao

Journal Article

A model of

Jingyu WANG,Hongwei FANG,Guojian HE,Lei HUANG

Journal Article