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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 usingthe 3-dimensional (3D) numerical simulation and the 1-dimensional (1D) thermal resistance model.The fin efficiency of E-MCHS was derived to improve the accuracy of the 1D thermal resistance model.and the heat convection between the top surface of fins and the liquid metal could reduce the total thermalThe maximum thermal resistance reduction in the example of this paper reached 36.0%.

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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Simulation of flow excursion and thermal siphon under natural circulation condition with lower pressure

WANG Jianjun, YANG Xingtuan, JIANG Shengyao

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 169-173 doi: 10.1007/s11708-008-0044-z

Abstract: The simulation of flow excursion was conducted under HRTL-5 condition.The mechanism analysis and the simulation of thermal siphon process were also performed.can be used to simulate the static instability of a natural circulation system and the simulation of flow

Keywords： HRTL-5     experiment     circulation     simulation     thermal    

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Microdamage study of granite under thermomechanical coupling based on the particle flow code

Frontiers of Structural and Civil Engineering   Pages 1413-1427 doi: 10.1007/s11709-023-0953-2

Abstract: improved temperature-dependent linear parallel bond model is introduced under the framework of a particle flowthe thermodynamic response and underlying cracking behavior of a deep-buried tunnel under different thermal

Keywords： thermomechanical coupling effect     granite     improved linear parallel bond model     thermal property     particleflow code    

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Modeling process-structure-property relationships for additive manufacturing

Wentao YAN, Stephen LIN, Orion L. KAFKA, Cheng YU, Zeliang LIU, Yanping LIAN, Sarah WOLFF, Jian CAO, Gregory J. WAGNER, Wing Kam LIU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 482-492 doi: 10.1007/s11465-018-0505-y

Abstract:

This paper presents our latest work on comprehensive modeling of process-structure-property relationshipsTo illustrate the process-structure relationship, the multi-scale multi-physics process modeling starts

Keywords： additive manufacturing     thermal fluid flow     data mining     material modeling    

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Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 643-651 doi: 10.1007/s11709-021-0709-9

Abstract: This study presents the results of the 3D microstructure, thermal conductivity, and heat flow in cement-basedMoreover, a difference of 5% was noticed between the experimentally measured thermal conductivity andmodel showed that heat flows through the cement paste solids and with an increase in porosity this flow

Keywords： 3D pore volume distribution     X-ray tomography     3D shape factor     heat flow    

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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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Thermal-hydraulic performance of novel louvered fin using flat tube cross-flow heat exchanger

DONG Junqi, CHEN Jiangping, CHEN Zhijiu

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 99-106 doi: 10.1007/s11708-008-0010-9

Abstract: conducted for 9 heat exchangers with different fin space and fin length, at a constant tube-side water flowThe air side thermal performance data were analyzed using the effectiveness-NTU method.Finally, the area optimization factor was used to evaluate the thermal hydraulic performance of the louveredwith the decrease of the fin space and fin length, and the fin space has more obvious effect on the thermal

Keywords： obvious effect     different     thermal hydraulic     constant tube-side     Colburn    

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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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Key point selection in large-scale FBG temperature sensors for thermal error modeling of heavy-duty CNC

Jianmin HU, Zude ZHOU, Quan LIU, Ping LOU, Junwei YAN, Ruiya LI

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 442-451 doi: 10.1007/s11465-019-0543-0

Abstract: Thermal error is one of the main factors that influence the machining accuracy of computer numericalIt is usually reduced by thermal error compensation.error modeling and compensation for CNC machine tools.error modeling.error modeling.

Keywords： thermal error     heavy-duty CNC machine tools     FBG     key TMPs     prediction model    

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Optimal operation of integrated energy system including power thermal and gas subsystems

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 105-120 doi: 10.1007/s11708-022-0814-z

Abstract: multi-energy systems, the integrated energy system contains different forms of energy such as power, thermalmainly on model building and optimal operation of the integrated energy system, in this paper, the dist-flowmethod is applied to quickly calculate the power flow and the gas system model is built by the analogyIn addition, the piecewise linearization method is applied to solve the quadratic Weymouth gas flow equation, a Belgian 20 node natural gas system, and a six node thermal system.

Keywords： integrated energy system     power-to-gas     dist-flow     piecewise linearization     alternating direction method    

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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 between

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

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Hydrogen production from co-gasification of coal and biomass in supercritical water by continuous flowthermal-catalytic reaction system

YAN Qiuhui, GUO Liejin, LIANG Xing, ZHANG Ximin

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 327-330 doi: 10.1007/s11708-007-0048-0

Abstract: Hydrogen is a clean energy carrier. Converting abundant coal sources and green biomass energy into hydrogen effectively and without any pollution promotes environmental protection. The co-gasification performance of coal and a model compound of biomass, carboxymethylcellulose (CMC) in supercritical water (SCW), were investigated experimentally. The influences of temperature, pressure and concentration on hydrogen production from co-gasification of coal and CMC in SCW under the given conditions (20–25 MPa, 650vH, 15–30 s) are discussed in detail. The experimental results show that H, CO and CH are the main gas products, and the molar fraction of hydrogen reaches in excess of 60%. The higher pressure and higher CMC content facilitate hydrogen production; production is decreased remarkably given a longer residence time.

Keywords： carboxymethylcellulose     temperature     co-gasification performance     Hydrogen     residence    

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Title Author Date Type Operation

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

Simulation of flow excursion and thermal siphon under natural circulation condition with lower pressure

WANG Jianjun, YANG Xingtuan, JIANG Shengyao

Journal Article

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Journal Article

Modeling process-structure-property relationships for additive manufacturing

Wentao YAN, Stephen LIN, Orion L. KAFKA, Cheng YU, Zeliang LIU, Yanping LIAN, Sarah WOLFF, Jian CAO, Gregory J. WAGNER, Wing Kam LIU

Journal Article

Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using

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

Thermal-hydraulic performance of novel louvered fin using flat tube cross-flow heat exchanger

DONG Junqi, CHEN Jiangping, CHEN Zhijiu

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

Key point selection in large-scale FBG temperature sensors for thermal error modeling of heavy-duty CNC

Jianmin HU, Zude ZHOU, Quan LIU, Ping LOU, Junwei YAN, Ruiya LI

Journal Article

Optimal operation of integrated energy system including power thermal and gas subsystems

Journal Article

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

Yanfeng LI, Jun LI

Journal Article

Hydrogen production from co-gasification of coal and biomass in supercritical water by continuous flowthermal-catalytic reaction system

YAN Qiuhui, GUO Liejin, LIANG Xing, ZHANG Ximin

Journal Article