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Application of a weakly compressible smoothed particle hydrodynamics multi-phase model to non-cohesive

Rasoul MEMARZADEH, Gholamabbas BARANI, Mahnaz GHAEINI-HESSAROEYEH

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 412-424 doi: 10.1007/s11709-017-0432-8

Abstract: present study is the application of mesh free Lagrangian two-dimensional non-cohesive sediment transport modelapplied to a two-phase flow over an initially trapezoidal-shaped sediment embankment.To simulate the movement of sediment particles, the model considers a powerful two-part technique; whenthe sediment phase has rigid behavior, only the force term due to shear stress in the Navier-Stokesbetween computational results and experimental data shows that the model generally predicts well the

Keywords: WCSPH method     non-cohesive sediment transport     rheological model     two-part technique     two-phase dam break    

Trajectory optimization with constraints for alpine skiers based on multi-phase nonlinear optimal control

Cong-ying Cai, Xiao-lan Yao,yaoxiaolan@bit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 10,   Pages 1413-1534 doi: 10.1631/FITEE.1900586

Abstract: along the entire course because of the complexity and difficulty in the convergence of the optimization modelIn this study, a model for alpine skiers competing in the Super-G is established based on the theoryThe original problem is converted into a multi-phase nonlinear problem solved with a , and the trajectorySimulation results reveal the effectiveness and rationality of the model.

Fundamental influences of particles on stirred and unstirred venting processes of foaming systems

Henrik LEIMEISTER,Jörg STEINBACH

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 141-148 doi: 10.1007/s11705-014-1423-0

Abstract: and should have been accounted for did ignore their presence; the scenarios were treated like a two-phasefour different layers of influence of the particle have been identified and are presented in a first modelBased on this model recommendations for the development of new and more complex models are given.

Keywords: venting     multi-phase    

Maximum entropy based finite element analysis of porous media

Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 364-379 doi: 10.1007/s11709-018-0470-x

Abstract: The maximum entropy theory has been used in a wide variety of physical, mathematical and engineering applications in the past few years. However, its application in numerical methods, especially in developing new shape functions, has attracted much interest in recent years. These shape functions possess the potential for performing better than the conventional basis functions in problems with randomly generated coarse meshes. In this paper, the maximum entropy theory is adopted to spatially discretize the deformation variable of the governing coupled equations of porous media. This is in line with the well-known fact that higher-order shape functions can provide more stable solutions in porous problems. Some of the benchmark problems in deformable porous media are solved with the developed approach and the results are compared with available references.

Keywords: maximum entropy FEM     fully coupled multi-phase system     porous media    

Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 240-249 doi: 10.1007/s11709-018-0490-6

Abstract: In this study, a hydromechanical model for fluid flow in fractured porous media is presented.Furthermore, the model is extended to includes crack propagation.examples are presented to demonstrate the versatility and efficiency of this two-scale hydromechanical model

Keywords: multi-phase medium     porous     fracture     multi-scale method    

Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Engineering 2024, Volume 32, Issue 1,   Pages 139-152 doi: 10.1016/j.eng.2023.05.014

Abstract: Therefore herein, we systematically review experimental, theoretical and simulation works on single- and multi

Keywords: Transport in nanoporous media     Multi-phase fluid dynamics     Nonlinear flow mechanisms     Nonlinear flow conservation    

Coupled solid-fluid FE-analysis of an embankment dam

Michael PERTL, Matthias HOFMANN, Guenter HOFSTETTER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 53-62 doi: 10.1007/s11709-010-0084-4

Abstract: A coupled solid-fluid FE-model for partially saturated soils, characterized by modeling the soil as athree-phase material consisting of a deformable soil skeleton and the fluid phases water and air, isAs a constitutive model for the soil skeleton, the well-known Barcelona Basic model (BBM) is employedThe coupled FE-model is applied to the coupled transient numerical simulation of the water flow and the

Keywords: multi-phase model     unsaturated soil model     Barcelona Basic model (BBM)     return mapping algorithm     embankment    

High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 406-416 doi: 10.1007/s11709-018-0475-5

Abstract: We approximate the fracture surface energy functional based on phase-field method with smooth local maximumof the meshfree methods such as LME and SME approximants allows to directly solve the fourth-order phase-fieldwill first show that the crack surface functional can be captured more accurately in the fourth-order modelFurthermore, smaller length scale parameter is needed for the fourth-order model to approximate the energyThe proposed meshfree fourth-order phase-field formulation show more stable results for SME compared

Keywords: second-order maximum entropy     local maximum entropy     second- and fourth-order phase-field models     B-spline    

Development of machine learning multi-city model for municipal solid waste generation prediction

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1551-6

Abstract:

● A database of municipal solid waste (MSW) generation in China was established.

Keywords: Municipal solid waste     Machine learning     Multi-cities     Gradient boost regression tree    

A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 877-894 doi: 10.1007/s11709-021-0756-2

Abstract: Many bridge design specifications consider multi-lane factors (MLFs) a critical component of the trafficload model.Measured multi-lane traffic data generally exhibit significant lane disparities in traffic loads overTo address this drawback, a multi-coefficient MLF model was developed based on an improved probabilisticThe proposed MLF model and approach were calibrated and demonstrated through an example site.

Keywords: bridges     multi-lane factor     traffic load     lane load disparity     multi-truck presence     weigh-in-motion    

A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0736-9

Abstract: Given the advantage of obtaining accurate diagnosis results, multi-sensor fusion has long been studiedSecond, the localization for multi-source faults is seldom investigated, although locating the anomalyweaknesses by proposing a global method to recognize fault types and localize fault sources with the help of multi-sensorFirst, an MSR model is developed to learn MSRs automatically and further obtain fault recognition resultsSecond, centrality measures are employed to analyze the MSR graphs learned by the MSR model, and fault

Keywords: fault recognition     fault localization     multi-sensor relations     network analysis     graph neural network    

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 414-423 doi: 10.1007/s11708-010-0108-8

Abstract: In this paper, a multi-zone model is developed to predict the operating range of homogeneous charge compressionsimulating an HCCI engine fueled with iso-octane, the knock and cycle-to-cycle variations predicted by the modeldifferent initial temperatures and equivalence ratios; the operating range was also well reproduced by the modelFurthermore, the model was applied to predict the operating range of the HCCI engine under different

Keywords: homogeneous charge compression ignition (HCCI) engine     multi-zone     operating range    

Multi-timescale optimization scheduling of interconnected data centers based on model predictive control

Frontiers in Energy doi: 10.1007/s11708-023-0912-6

Abstract: In this paper, a multi-timescale optimal scheduling model is established for interconnected data centers(IDCs) based on model predictive control (MPC), including day-ahead optimization, intraday rolling optimizationaims at the lowest power fluctuation, eliminating the impact of prediction errors through coordinated multi-timescale

Keywords: model predictive control     interconnected data center     multi-timescale     optimized scheduling     distributed    

A multi-scale model for CO

G. X. WANG, X. R. WEI, V. RUDOLPH, C. T. WEI, Y. QIN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 1,   Pages 20-25 doi: 10.1007/s11705-009-0138-0

Abstract: This paper presents a multi-scale model to simulate the multicomponent gas diffusion and flow in bulkThe model is developed based on a bi-dispersed structure model by assuming that coal consists of microporousThe bi-disperse diffusion theory and the Maxwell-Stefan approach were incorporated in the model, providingIn the model, the counter diffusion process is numerically coupled with the flow of the mixture gasesThe model was validated by both experimental data from literature and our CO flush tests, and shows

Keywords: multi-scale model     gas transport     coal     coalbed methane     CO2 sequestration    

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linearprogramming model

Frontiers of Engineering Management   Pages 452-461 doi: 10.1007/s42524-022-0209-1

Abstract: This study combines multi-regional input–output (MRIO) model with linear programming (LP) model to exploreThe proposed MRIOLP model considers the inter-relationship among various sectors and

Keywords: CO2 emissions     demand side regulation     multi-regional input–output model     linear programmingmodel    

Title Author Date Type Operation

Application of a weakly compressible smoothed particle hydrodynamics multi-phase model to non-cohesive

Rasoul MEMARZADEH, Gholamabbas BARANI, Mahnaz GHAEINI-HESSAROEYEH

Journal Article

Trajectory optimization with constraints for alpine skiers based on multi-phase nonlinear optimal control

Cong-ying Cai, Xiao-lan Yao,yaoxiaolan@bit.edu.cn

Journal Article

Fundamental influences of particles on stirred and unstirred venting processes of foaming systems

Henrik LEIMEISTER,Jörg STEINBACH

Journal Article

Maximum entropy based finite element analysis of porous media

Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI

Journal Article

Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Journal Article

Transport in Nanoporous Media

Weiyao Zhu,Bin Pan,Zhen Chen,Wengang Bu,Qipeng Ma,Kai Liu,Ming Yue

Journal Article

Coupled solid-fluid FE-analysis of an embankment dam

Michael PERTL, Matthias HOFMANN, Guenter HOFSTETTER

Journal Article

High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Journal Article

Development of machine learning multi-city model for municipal solid waste generation prediction

Journal Article

A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities

Journal Article

A multi-sensor relation model for recognizing and localizing faults of machines based on network analysis

Journal Article

Applying the multi-zone model in predicting the operating range of HCCI engines

Ming JIA, Maozhao XIE, Zhijun PENG,

Journal Article

Multi-timescale optimization scheduling of interconnected data centers based on model predictive control

Journal Article

A multi-scale model for CO

G. X. WANG, X. R. WEI, V. RUDOLPH, C. T. WEI, Y. QIN

Journal Article

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linearprogramming model

Journal Article