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Multi-class dynamic network traffic flow propagation model with physical queues

Yanfeng LI, Jun LI

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 399-407 doi: 10.15302/J-FEM-2017041

Abstract: This paper proposes an improved multi-class dynamic network traffic flow propagation model with a considerationEach link is divided into two areas: Free flow area and queue area.link, and the vehicles of the different classes also follow FIFO in the queue area but not in the free flowThis analysis can more realistically capture the traffic flow propagation, such as interactions betweenmulti-class traffic flows, and the dynamic traffic interactions across multiple links.

Keywords： first-in-first-out (FIFO)     multi-class traffic     physical queues     traffic flow modeling    

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Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1301-1316 doi: 10.1007/s11709-021-0765-1

Abstract: An integrated storm surge modeling and traffic analysis were conducted in this study to assess the effectivenessTraffic data were used to analyze the evacuation traffic patterns.In south-east Florida, evacuation traffic started 4 days before the hurricane’s arrival.Over-evacuation caused Evacuation Traffic Index (ETI) to increase to 200% above normal conditionspublic awareness of real-time storm surge and wind as well as integrated storm surge and evacuation modeling

Keywords： storm surge modeling     traffic     evacuation     Hurricane Irma    

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Study on realtime method of traffic flow guidance system

Cui Jianming,Ye Huaizhen

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 64-66

Abstract:

Real-time guidance system of traffic flow is information reconstructIf events occut in short periodic time, these events will inflict the normal traffic guidance.In this paper, a new and simple solution scheme is proposed by analyzing status traffic situation.technology built on the current guidance system, therefore, this conclusion can be widly applied to trafficflow guidance system.

Keywords： traffic flow guidance system     simulation     emergent events     real-time guidance    

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Hierarchical modeling of stochastic manufacturing and service systems

Zhe George ZHANG, Xiaoling YIN

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 295-303 doi: 10.15302/J-FEM-2017047

Abstract: Such a classification unifies stochastic modeling theory.Such models are appropriate for modeling the detailed operations of a manufacturing system with relativelylimit theorem (FCLT) and functional strong law of large numbers (FSLLN), respectively, under heavy-trafficThese high-level models are appropriate for modeling large-scale service systems with many servers, suchThis review will help practitioners select the appropriate level of modeling to enhance their understanding

Keywords： stochastic modeling     QBD process     PH distribution     heavy traffic limits     diffusion process    

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Flow and thermal modeling of liquid metal in expanded microchannel heat sink

Frontiers in Energy   Pages 796-810 doi: 10.1007/s11708-023-0877-5

Abstract: The flow and thermal modeling of expanded microchannel heat sink (E-MCHS) were analyzed by both using

Keywords： liquid metal cooling     heat sink     expanded microchannel     flow and thermal modeling    

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Evaluation of global niobium flow modeling and its market forecasting

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 286-293 doi: 10.1007/s11708-022-0823-y

Abstract: Therefore, this paper will discuss different thoughts in material substitution and the substance flowof Nb throughout a static flow using Nb global data to have a better understanding of the process of

Keywords： niobium (Nb)     sustainability     substance flow analysis     recycling     industrial ecology    

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Study for entrained-flow gasifier modeling and measurement

Zhe WANG, Zheng LI, Fen HE

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 400-403 doi: 10.1007/s11705-010-0510-0

Abstract: The syngas composition change during the measurement process was analyzed using a detailed gas phase reaction mechanism. Results showed that the measurement error induced by the temperature and pressure change in the measurement process cannot be ignored. Based on the results, suggestions were proposed for syngas concentration measurement and temperature measurement.

Keywords： entrained-flow gasifier     syngas composition    

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Framework based on building information modeling, mixed reality, and a cloud platform to support informationflow in facility management

Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 131-141 doi: 10.1007/s42524-019-0071-y

Abstract: The quality of information flow management has a remarkable effect on the entire life cycle of buildingsThe introduction of building information modeling (BIM) in the construction industry can provide a valuable

Keywords： information flow management     BIM     mixed reality     common data environment     facility management    

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Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formationin opposed-flow diffusion flames

ZHONG Beijing, XI Jun

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

Abstract: with the multidimensional computational fluid dynamics code for quantitative description of a reacting flow, was developed for chemical kinetic modeling of polycyclic aromatic hydrocarbon formation in an opposed-flowpolycyclic aromatic hydrocarbon (such as benzene, naphthalene, phenanthrene and pyrene) formation in opposed-flow

Keywords： phenanthrene     multidimensional computational     sensitivity analysis     polycyclic     mechanism    

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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 duringThe entire flow field surrounding the UAV and the rotation flow fields around the six rotors were establishedThe physical model and flow fields were meshed using unstructured tetrahedral elements in ANSYS softwareFinally, the downwash flow field of UAV was simulated.

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

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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: surface finish and material removal has been quite a challenge in a finishing operation such as abrasive flowmaterial removal are media viscosity, extrusion pressure, piston velocity, and particle size in abrasive flowIn the current work, a 2D model was designed, and the flow analysis, force calculation, and materialTwo phases were considered for the flow analysis, and multiphase mixture model was taken into accountThe fluid was considered to be a Newtonian fluid and the flow laminar with no wall slip.

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

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Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 267-275 doi: 10.1007/s11709-010-0035-0

Abstract: Discrete element method (DEM) was developed to simulate the corn-shaped particles flow in the hopper.And the velocity distribution is more uniformity and is closer to the mass flow with the friction coefficient

Keywords： discrete         element          method         (DEM)             non-spherical     voidage     pressure     velocity distribution     hopper    

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Modeling the gas flow in a cyclone separator at different temperature and pressure

Gujun WAN, Guogang SUN, Cuizhi GAO, Ruiqian DONG, Ying ZHENG, Mingxian SHI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 498-505 doi: 10.1007/s11705-010-0502-0

Abstract: The gas flow field in a cyclone separator, operated within a temperature range of 293 K – 1373 K andThe outer downward flow rate increases with a temperature increase, whereas it decreases with a pressureis strong in the region of 0 – 0.25 below the vortex finder entrance, which is named as a short-cut flowcalculate the combined effects of temperature and pressure on the tangential velocity, the downward flowrate in the cyclone and the centripetal radial velocity in the short-cut flow region underneath the

Keywords： cyclone separator     high temperature     high pressure     flow field     numerical simulation    

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Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and theresulting traffic service

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 490-497 doi: 10.15302/J-FEM-2017008

Abstract: Today, large quantities of vehicle data (FCD: floating car data) are widely used by traffic service providersto create and broadcast traffic states in road networks.Various examples illustrate how traffic service quality depends on the number of matched GPS raw data; it will be stated that when 2% of connected vehicles in the total traffic flow are sending their GPSTraffic reconstruction is followed by a translation into traffic information messages, which can be sent

Keywords： floating car data     map matching     three phase traffic theory     traffic reconstruction     traffic service quality    

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Laminar-to-Turbulence Transition Revealed Through a Reynolds Number Equivalence Article

Xiao Dong Chen

Engineering 2019, Volume 5, Issue 3,   Pages 576-579 doi: 10.1016/j.eng.2018.09.013

Abstract:

Flow transition from laminar to turbulent mode (and vice versa)—that is, the initiation of turbulenceEven for pipe flow, predicting the onset of turbulence requires sophisticated instrumentation and/ordirect numerical simulation, based on observing the instantaneous flow structure formation and evolutionFor pipe flow, modeling of turbulence.

Keywords： Local Reynolds number equivalence     Flow transition from laminar to turbulent mode     Universal law of thewall     Pipe flow     Plate flow     Modeling    

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Title Author Date Type Operation

Multi-class dynamic network traffic flow propagation model with physical queues

Yanfeng LI, Jun LI

Journal Article

Integrating storm surge modeling with traffic data analysis to evaluate the effectiveness of hurricane

Journal Article

Study on realtime method of traffic flow guidance system

Cui Jianming,Ye Huaizhen

Journal Article

Hierarchical modeling of stochastic manufacturing and service systems

Zhe George ZHANG, Xiaoling YIN

Journal Article

Flow and thermal modeling of liquid metal in expanded microchannel heat sink

Journal Article

Evaluation of global niobium flow modeling and its market forecasting

Journal Article

Study for entrained-flow gasifier modeling and measurement

Zhe WANG, Zheng LI, Fen HE

Journal Article

Framework based on building information modeling, mixed reality, and a cloud platform to support informationflow in facility management

Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI

Journal Article

Reduced kinetic mechanism of -heptane oxidation in modeling polycyclic aromatic hydrocarbon formationin opposed-flow diffusion flames

ZHONG Beijing, XI Jun

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

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

Rupalika DASH,Kalipada MAITY

Journal Article

Discrete element method modeling of corn-shaped particle flow in rectangular hopper

He TAO, Baosheng JIN, Wenqi ZHONG, Xiaofang WANG,

Journal Article

Modeling the gas flow in a cyclone separator at different temperature and pressure

Gujun WAN, Guogang SUN, Cuizhi GAO, Ruiqian DONG, Ying ZHENG, Mingxian SHI

Journal Article

Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and theresulting traffic service

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

Journal Article

Laminar-to-Turbulence Transition Revealed Through a Reynolds Number Equivalence

Xiao Dong Chen

Journal Article