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Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computationalfluid dynamic and reaction kinetic modeling

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1149-1163 doi: 10.1007/s11705-021-2096-0

Abstract: The novelty of this work is the computational fluid dynamic model combined with the novel carbon dioxide

Keywords： carbon dioxide photoreduction     computational fluid dynamic simulation     kinetic model     Langmuir adsorption    

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Computational modeling of fracture in concrete: A review

Luthfi Muhammad Mauludin, Chahmi Oucif

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 586-598 doi: 10.1007/s11709-020-0573-z

Abstract: This paper presents a review of fracture modeling of concrete.comprehensive literature review, there are two main approaches considered to-date of concrete fracture modelingThe purpose of this review is to provide insight comparison from different techniques in modeling ofIn the first section, an overview of fracture modeling in general is highlighted.As heterogeneity of concrete material is major concern in micromechanical-based concrete modeling, one

Keywords： concrete fracture     macroscopic     micromechanical     heterogeneity    

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Revisiting digital twins: Origins, fundamentals, and practices

Frontiers of Engineering Management   Pages 668-676 doi: 10.1007/s42524-022-0216-2

Abstract: This study revisits DT and defines it to be a more advanced system/product/service modeling and simulationThe idea of DT originates from modeling and simulation practices of engineering informatization, includingvirtual manufacturing (VM), model predictive control, and building information modeling (BIM).

Keywords： virtual manufacturing     digital twins     modeling and simulation     digitization     computational engineering    

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An investigation of ballistic response of reinforced and sandwich concrete panels using computational

Mohammad HANIFEHZADEH, Bora GENCTURK

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1120-1137 doi: 10.1007/s11709-019-0540-8

Abstract: Two modeling techniques, smoothed particle hydrodynamics (SPH) and conventional finite element (FE) analysis

Keywords： concrete panels     projectile impact     finite element modeling     smoothed particle hydrodynamics     strain rate    

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The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV

Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 159-167 doi: 10.15302/J-FASE-2018216

Abstract: The downwash flow field of the multi-rotor unmanned aerial vehicle (UAV), formed by propellers during operation, has a significant influence on the deposition, drift and distribution of droplets as well as the spray width of the UAV for plant protection. To study the general characteristics of the distribution of the downwash airflow and simulate the static wind field of multi-rotor UAVs in hovering state, a 3D full-size physical model of JF01-10 six-rotor plant protection UAV was constructed using SolidWorks. The entire flow field surrounding the UAV and the rotation flow fields around the six rotors were established in UG software. The physical model and flow fields were meshed using unstructured tetrahedral elements in ANSYS software. Finally, the downwash flow field of UAV was simulated. With an increased hovering height, the ground effect was reduced and the minimum current velocity increased initially and then decreased. In addition, the spatial proportion of the turbulence occupied decreased. Furthermore, the appropriate operational hovering height for the JF01-10 is considered to be 3 m. These results can be applied to six-rotor plant protection UAVs employed in pesticide spraying and spray width detection.

Keywords： CFD simulation     downwash flow field     numerical analysis     plant protection     six-rotor UAV    

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Stormwater treatment: examples of computational fluid dynamics modeling

Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 638-648 doi: 10.1007/s11783-012-0442-7

Abstract: This study applies the principles of computational fluid dynamics (CFD) to predict the particle and pollutantCFD is arguably the most powerful tool available for our profession since continuous simulation modeling

Keywords： stormwater     unit operations and processes (UOPs)     hydrodynamic separation     filtration     adsorption     computationalfluid dynamics (CFD)     turbulence modeling     discrete phase model     particle separation     detention/retention    

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Computational modeling of fracture in capsule-based self-healing concrete: A 3D study

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1337-1346 doi: 10.1007/s11709-021-0781-1

Abstract: We present a three-dimensional (3D) numerical model to investigate complex fracture behavior using cohesive elements. An efficient packing algorithm is employed to create the mesoscale model of heterogeneous capsule-based self-healing concrete. Spherical aggregates are used and directly generated from specified size distributions with different volume fractions. Spherical capsules are also used and created based on a particular diameter, and wall thickness. Bilinear traction-separation laws of cohesive elements along the boundaries of the mortar matrix, aggregates, capsules, and their interfaces are pre-inserted to simulate crack initiation and propagation. These pre-inserted cohesive elements are also applied into the initial meshes of solid elements to account for fracture in the mortar matrix. Different realizations are carried out and statistically analyzed. The proposed model provides an effective tool for predicting the complex fracture response of capsule-based self-healing concrete at the meso-scale.

Keywords： 3D fracture     self-healing concrete     spherical     cohesive elements     heterogeneous    

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A multiscale material model for heterogeneous liquid droplets in solid soft composites

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1292-1299 doi: 10.1007/s11709-021-0771-3

Abstract: revisits the available models for liquid droplets in solid soft composites and presents a multiscale computationalDifferent micromechanical material models are incorporated into the presented computational framework

Keywords： liquid in solid     soft composite     computational modeling     multiscale model     heterogeneity    

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Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formation

ZHONG Beijing, XI Jun

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 326-332 doi: 10.1007/s11708-008-0047-9

Abstract: A reduced mechanism, which could couple with the multidimensional computational fluid dynamics code forquantitative description of a reacting flow, was developed for chemical kinetic modeling of polycyclic

Keywords： phenanthrene     multidimensional computational     sensitivity analysis     polycyclic     mechanism    

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Structural optimization of filament wound composite pipes

Roham RAFIEE; Reza SHAHZADI; Hossein SPERESP

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1056-1069 doi: 10.1007/s11709-022-0868-3

Abstract: Then, proper computational tools are developed for predicting the structural properties of the compositeThe developed computational tools are validated by relying on experimental analysis.

Keywords： composite pipes     optimization     experimental validation     computational modeling     filament winding    

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Thermal response of steel framing members in open car park fires

Xia YAN; Marion CHARLIER; Thomas GERNAY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9,   Pages 1071-1088 doi: 10.1007/s11709-022-0879-0

Abstract: Steel temperatures are computed by the coupling of computational fluid dynamics and finite element modelingtemperatures in unprotected beams and columns are influenced by the section geometry, car fire scenario, modelingRegarding the different models, CFD-FEM (CFD: computational fluid dynamics, FEM: finite-element method

Keywords： open car park     localized fire     steel frame     numerical modeling     computational fluid dynamics    

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Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods

Zheng-Dong MA

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 442-459 doi: 10.1007/s11465-018-0488-8

Abstract: of suitable homogenization methods was developed that provided an effective means for the multiscale modeling

Keywords： architectured material     cellular materials     multi-scale modeling     homogenization method     effective materialproperties     computational method    

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Research Trends in Fischer--Tropsch Catalysis for Coal to Liquids Technology

Emiel J. M. Hensen,Peng Wang,Wayne Xu

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 321-330 doi: 10.15302/J-FEM-2016051

Abstract: These approaches should be augmented by (1) computational investigations that are increasingly able to

Keywords： Fischer–Tropsch     FTS     CTL     Fe catalyst     iron carbide     computational modeling    

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Simulation of abrasive flow machining process for 2D and 3D mixture models

Rupalika DASH,Kalipada MAITY

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 424-432 doi: 10.1007/s11465-015-0366-6

Abstract: Computational fluid dynamics (CFD) simulation was employed to accurately determine optimum parameters

Keywords： abrasive flow machining (AFM)     computational fluid dynamics (CFD) modeling     mixture model    

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Challenges of high dam construction to computational mechanics

ZHANG Chuhan

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1,   Pages 12-33 doi: 10.1007/s11709-007-0002-6

Abstract: large dams and hydro-power plants, especially those associated with application of state-of-the-art computationalSome examples demonstrating successful utilizations of computational mechanics in high dam engineeringTo make more use of the computational mechanics in high dam engineering, it is pointed out that muchresearch including different computational methods, numerical models and solution schemes, and verifications

Keywords： reservoir     engineering     hydro-power development     state-of-the-art computational     earthquake    

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Title Author Date Type Operation

Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computationalfluid dynamic and reaction kinetic modeling

Journal Article

Computational modeling of fracture in concrete: A review

Luthfi Muhammad Mauludin, Chahmi Oucif

Journal Article

Revisiting digital twins: Origins, fundamentals, and practices

Journal Article

An investigation of ballistic response of reinforced and sandwich concrete panels using computational

Mohammad HANIFEHZADEH, Bora GENCTURK

Journal Article

The computational fluid dynamic modeling of downwash flow field for a six-rotor UAV

Yongjun ZHENG, Shenghui YANG, Xingxing LIU, Jie WANG, Tomas NORTON, Jian CHEN, Yu TAN

Journal Article

Stormwater treatment: examples of computational fluid dynamics modeling

Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA

Journal Article

Computational modeling of fracture in capsule-based self-healing concrete: A 3D study

Journal Article

A multiscale material model for heterogeneous liquid droplets in solid soft composites

Journal Article

Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formation

ZHONG Beijing, XI Jun

Journal Article

Structural optimization of filament wound composite pipes

Roham RAFIEE; Reza SHAHZADI; Hossein SPERESP

Journal Article

Thermal response of steel framing members in open car park fires

Xia YAN; Marion CHARLIER; Thomas GERNAY

Journal Article

Macro-architectured cellular materials: Properties, characteristic modes, and prediction methods

Zheng-Dong MA

Journal Article

Research Trends in Fischer--Tropsch Catalysis for Coal to Liquids Technology

Emiel J. M. Hensen,Peng Wang,Wayne Xu

Journal Article

Simulation of abrasive flow machining process for 2D and 3D mixture models

Rupalika DASH,Kalipada MAITY

Journal Article

Challenges of high dam construction to computational mechanics

ZHANG Chuhan

Journal Article