• Complex
  • Title
  • Author
  • Keyword
  • Abstract
  • Scholars
Search
High Impact Results & Cited Count Trend for Year Keyword Cloud and Partner Relationship

Query:

学者姓名:唐桂华

Refining:

Source

Submit Unfold

Language

Submit

Clean All

Export Sort by:
Default
  • Default
  • Title
  • Year
  • WOS Cited Count
  • Impact factor
  • Ascending
  • Descending
< Page ,Total 20 >
An improved phase-field-based lattice Boltzmann model for droplet dynamics with soluble surfactant EI SCIE Scopus
期刊论文 | 2019 , 179 , 508-520 | Computers and Fluids
Abstract&Keyword Cite

Abstract :

We present an improved phase-field model in the lattice Boltzmann scheme to investigate the droplet dynamics in the presence of soluble surfactant. The phase-field model based on the Ginzburg–Landau free energy is developed in which the immiscible binary fluid interfacial profile is independent of the surfactant concentration. The improved model is validated and then employed to study the surfactant effect on single droplet deformation, two droplets interactions and interactions among four droplets in the shear flow. The results show that the increase of surfactant concentration promotes droplet deformation, droplet breakup and more complex droplet-droplet interaction compared to the clean droplet. Moreover, the effects of capillary number, viscosity ratio, as well as peclet number on the behavior of surfactant-covered droplets in the shear flow are investigated. The results indicate that the droplet Taylor deformation parameter increases with the increase of capillary number but the decrease of viscosity ratio. The minimum distance between two interacting droplets enlarges with both capillary number and peclet number. © 2018 Elsevier Ltd

Keyword :

Binary fluids Droplet-droplet interactions Lattice Boltzmann method Lattice boltzmann models Lattice-Boltzmann scheme Phase field models Soluble surfactants Surfactant concentrations

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Shi, Y. , Tang, G.H. , Cheng, L.H. et al. An improved phase-field-based lattice Boltzmann model for droplet dynamics with soluble surfactant [J]. | Computers and Fluids , 2019 , 179 : 508-520 .
MLA Shi, Y. et al. "An improved phase-field-based lattice Boltzmann model for droplet dynamics with soluble surfactant" . | Computers and Fluids 179 (2019) : 508-520 .
APA Shi, Y. , Tang, G.H. , Cheng, L.H. , Shuang, H.Q. . An improved phase-field-based lattice Boltzmann model for droplet dynamics with soluble surfactant . | Computers and Fluids , 2019 , 179 , 508-520 .
Export to NoteExpress RIS BibTex
A theoretical model for gas-contributed thermal conductivity in nanoporous aerogels EI SCIE Scopus
期刊论文 | 2019 , 137 , 64-73 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Abstract&Keyword Cite

Abstract :

A theoretical model for gas-contributed thermal conductivity in aerogel is proposed by considering the coupling effects of both the local solid-gas interaction (heat crossing particles and adjacent gaseous pore) and the thermal-bridge interaction (heat crossing adjacent particles and the gas confined in the gap). The predictions of present model demonstrate a good agreement with experimental data of aerogels with different microstructures and thermophysical properties, exhibiting its good potential of application. The proposed model is then employed to investigate the influence mechanism of the above two solid-gas coupling effects in aerogels. It is shown that the coupling effect of local solid-gas interaction is in a dominant position, while the coupling effect of thermal-bridge interaction becomes noticeable and should not be neglected when the pressure exceeds about 1 atm. The effects of porosity, particle size and thermal conductivity of particles are also examined according to the present model, which could provide guidance for improving heat-insulating capacity of aerogels in engineering. (C) 2019 Elsevier Ltd. All rights reserved.

Keyword :

Aerogel Solid-gas coupling effect Gas-contributed thermal conductivity Porous materials

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Guo, JF , Tang, GH . A theoretical model for gas-contributed thermal conductivity in nanoporous aerogels [J]. | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2019 , 137 : 64-73 .
MLA Guo, JF et al. "A theoretical model for gas-contributed thermal conductivity in nanoporous aerogels" . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 137 (2019) : 64-73 .
APA Guo, JF , Tang, GH . A theoretical model for gas-contributed thermal conductivity in nanoporous aerogels . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2019 , 137 , 64-73 .
Export to NoteExpress RIS BibTex
Hydrogenation: An effective strategy to improve the thermoelectric properties of multilayer silicene SCIE
期刊论文 | 2019 , 99 (23) , 235428 | PHYSICAL REVIEW B
Abstract&Keyword Cite

Abstract :

Low-dimensional materials have an excellent prospect in thermoelectric applications. We have investigated the geometric structure, band structure, and electron transport properties of hydrogenated and pure multilayer silicene using first-principle calculation within density functional theory. The Boltzmann theory for electrons under relaxation time approximation was employed to obtain the Seebeck coefficient and electrical conductivity. The calculations of electron relaxation time were based on the deformation potential theory. Hydrogenation can effectively change the band structure of multilayer silicene. The simulation results reveal a big difference in the relaxation times between pure and hydrogenated structures. And, this difference decreases as the layer number n increases. The anisotropy of hydrogenated structures leads to a high thermoelectric performance along the armchair direction. When the layer number n is larger than 2, hydrogenation can greatly improve the electronic figure of merit ZT(e) of multilayer silicene. The band structure can also be engineered by adjusting the hydrogenation ratio. A band of 0.33 eV can be achieved when the hydrogenation ratio is 66.7%. By combining the adjustment of the hydrogenation ratio with the method of changing the geometric structure, a high thermoelectric performance can be achieved in multilayer silicene. The results provide a viable strategy for thermoelectric optimization in multilayer silicene, and can be potentially extended to the thermoelectric optimization of other two-dimensional materials.

Keyword :

THERMAL-CONDUCTIVITY PERFORMANCE FIGURE MERIT MOBILITY CARBON HOLE

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Li, YF , Tang, GH , Fu, B . Hydrogenation: An effective strategy to improve the thermoelectric properties of multilayer silicene [J]. | PHYSICAL REVIEW B , 2019 , 99 (23) : 235428 .
MLA Li, YF et al. "Hydrogenation: An effective strategy to improve the thermoelectric properties of multilayer silicene" . | PHYSICAL REVIEW B 99 . 23 (2019) : 235428 .
APA Li, YF , Tang, GH , Fu, B . Hydrogenation: An effective strategy to improve the thermoelectric properties of multilayer silicene . | PHYSICAL REVIEW B , 2019 , 99 (23) , 235428 .
Export to NoteExpress RIS BibTex
Inhibition of surface ice nucleation by combination of superhydrophobic coating and alcohol spraying SCIE
期刊论文 | 2019 , 134 , 628-633 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Abstract&Keyword Cite

Abstract :

Delaying and suppressing frost formation is of significance due to its wide application in many fields. In the present study, the characteristics of superhydrophobic surface inhibiting the condensation icing/frost were obtained and the turning point of coverage area was observed, which could be used as the new criterion for the onset of icing on the superhydrophobic surface. It was also found that during the frost accumulation period, the frost shedding occurred at the junction of hydrophilic and superhydrophobic regions when the hybrid surface was inverted. In addition, the results highlighted that the combination of active ethanol spraying and passive superhydrophobic coating could completely avoid the occurrence of condensation icing/frost. (C) 2019 Elsevier Ltd. All rights reserved.

Keyword :

Frost shedding Frost spreading Superhydrophobic surface Ice bridge Anti-frost Ethanol spraying

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Jiang, J. , Lu, G. Y. , Tang, G. H. . Inhibition of surface ice nucleation by combination of superhydrophobic coating and alcohol spraying [J]. | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2019 , 134 : 628-633 .
MLA Jiang, J. et al. "Inhibition of surface ice nucleation by combination of superhydrophobic coating and alcohol spraying" . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 134 (2019) : 628-633 .
APA Jiang, J. , Lu, G. Y. , Tang, G. H. . Inhibition of surface ice nucleation by combination of superhydrophobic coating and alcohol spraying . | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER , 2019 , 134 , 628-633 .
Export to NoteExpress RIS BibTex
Correlation evaluation on circumferentially average heat transfer for supercritical carbon dioxide in non-uniform heating vertical tubes SCIE
期刊论文 | 2019 , 170 , 480-496 | ENERGY
Abstract&Keyword Cite

Abstract :

Supercritical heat transfer mechanisms and heat transfer correlations are firstly reviewed in present paper. The heat transfer characteristics of S-CO2 in circumferentially non-uniform heated vertical upward flow are then numerically studied and the fundamental mechanisms are discussed. The abnormal heat transfer for S-CO2 is believed to be caused by the comprehensive effect of thermophysical property variations. For S-CO2 with non-uniform heating and large mass flow rate, the enhanced heat transfer is mainly related to the large specific heat in the near wall region while the deteriorated heat transfer is dominated by the thickening viscous sublayer induced by the viscosity increase. Besides, the buoyancy effect induced by the density variation is still prominent to axial velocity distribution even in the forced convection. Finally a new correlation with higher accuracy is developed for S-CO2 circumferentially average heat transfer by introducing the correction parameters of viscosity, specific heat, axial flow acceleration and non-uniform heat flux. (C) 2018 Elsevier Ltd. All rights reserved.

Keyword :

Heat transfer Non-uniform heating Supercritical carbon dioxide Correlation

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Fan, Y. H. , Tang, G. H. , Li, X. L. et al. Correlation evaluation on circumferentially average heat transfer for supercritical carbon dioxide in non-uniform heating vertical tubes [J]. | ENERGY , 2019 , 170 : 480-496 .
MLA Fan, Y. H. et al. "Correlation evaluation on circumferentially average heat transfer for supercritical carbon dioxide in non-uniform heating vertical tubes" . | ENERGY 170 (2019) : 480-496 .
APA Fan, Y. H. , Tang, G. H. , Li, X. L. , Yang, D. L. , Wang, S. Q. . Correlation evaluation on circumferentially average heat transfer for supercritical carbon dioxide in non-uniform heating vertical tubes . | ENERGY , 2019 , 170 , 480-496 .
Export to NoteExpress RIS BibTex
Multi-Objective Optimization for China's Power Carbon Emission Reduction by 2035 SCIE
期刊论文 | 2019 , 28 (2) , 184-194 | JOURNAL OF THERMAL SCIENCE
Abstract&Keyword Cite

Abstract :

Low carbon transformation plays an important role in promoting the energy production and consumption revolution. Currently, the power sector of China still faces a series of challenges, such as the overcapacity of coal-fired power, the renewable energy consumption, the new constraints of carbon-emissions, and fragmented power planning. This study develops a multi-objective optimization model to predict the future trend of China power structure by 2035. The key factors such as network, power, load and storage are taken into account. Besides, the technical feasibility, economic rationality and social acceptable constraints are also fully considered. Through planning and optimization, the premise of low carbon transformation is to ensure the continuity of existing policies for removing inefficient assets, and the core is to develop and utilize non-fossil energy on a large scale. Specifically, the capacity of coal-fired power will be attained in the peak in 2025, and the factor will also transfer from main power supplier to main power and energy supplier. Before 2025, the clean replacement of incremental power installation will be completed. In 2035, 92% of new investment comes from non-fossil energy. The economy and competitiveness of wind power and PV (Photovoltaic) power generation are continuously increasing. By 2020, the coal-fired power and the wind power in eastern of China will be parity firstly. In 2025, the cost of PV and wind power will be the same. Furthermore, the evaluation dimension of modern power system with clean, low-carbon, safety and high efficiency are innovatively constructed, and the index system target of 2035 is quantitatively analyzed and prospected.

Keyword :

carbon emission reduction optimization comprehensive evaluation power sector energy outlook

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wu Jianjun , Tang Guihua , Wang Run et al. Multi-Objective Optimization for China's Power Carbon Emission Reduction by 2035 [J]. | JOURNAL OF THERMAL SCIENCE , 2019 , 28 (2) : 184-194 .
MLA Wu Jianjun et al. "Multi-Objective Optimization for China's Power Carbon Emission Reduction by 2035" . | JOURNAL OF THERMAL SCIENCE 28 . 2 (2019) : 184-194 .
APA Wu Jianjun , Tang Guihua , Wang Run , Sun Yanwei . Multi-Objective Optimization for China's Power Carbon Emission Reduction by 2035 . | JOURNAL OF THERMAL SCIENCE , 2019 , 28 (2) , 184-194 .
Export to NoteExpress RIS BibTex
Finite element analysis of anti-erosion characteristics of material with patterned surface impacted by particles EI Scopus SCIE
期刊论文 | 2019 , 342 , 193-203 | Powder Technology
SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

Inspired by the dorsal patterns of living beings in the windy desert, we study the anti-erosion behavior of materials with surface patterns impacted by particles using Finite Element Method (FEM). Using Ti-6Al-4V alloy as the target material and alumina particles as the impact particles, we systematically examine the effects of the impact angle and velocity of particles and target surface with varying surface feature sizes on the erosion mechanism and ant-erosion performance. The simulation results show that the erosion rates against the effective impact angle for our designed surface structures are quite different from those for the flat surface, also suggesting that the effective impact angle concept is insufficient to describe the erosion behavior for curved surfaces. Interestingly, a patterned surface may increase or decrease the erosion rate in comparison with the flat surface. In particular, certain patterned surface structures, which are able to effectively absorb plastic dissipation and thus reduce the damage dissipation, are able to greatly reduce the erosion rate, suggesting that surface pattern can be optimally designed to maximize the anti-erosion performance. © 2018 Elsevier B.V.

Keyword :

Alumina particles Damage dissipation Erosion characteristics Erosion mechanisms Particle erosion Patterned surface Plastic dissipation Velocity of particles

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Zhao, Xuebin , Tang, G.H. , Liu, Zhigang et al. Finite element analysis of anti-erosion characteristics of material with patterned surface impacted by particles [J]. | Powder Technology , 2019 , 342 : 193-203 .
MLA Zhao, Xuebin et al. "Finite element analysis of anti-erosion characteristics of material with patterned surface impacted by particles" . | Powder Technology 342 (2019) : 193-203 .
APA Zhao, Xuebin , Tang, G.H. , Liu, Zhigang , Zhang, Yong-Wei . Finite element analysis of anti-erosion characteristics of material with patterned surface impacted by particles . | Powder Technology , 2019 , 342 , 193-203 .
Export to NoteExpress RIS BibTex
Steady and transient operation of an organic Rankine cycle power system EI Scopus SCIE
期刊论文 | 2019 , 133 , 284-294 | Renewable Energy
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

© 2018 Elsevier Ltd The Organic Rankine Cycle (ORC) driven by low-grade energy can operate in off-grid mode. Here, we report the steady and transient characteristics of an ORC system. A single screw expander and a synchronous generator convert mechanical power to electricity. A lamp array simulates the variable external loads. The quality parameters including electric frequency, electric power and effective voltage are measured by a power meter. We show that at setting frequency of 50 Hz, the maximum system efficiency can be reached when the external load is not larger than the ORC power capacity. The expander isentropic efficiency is above 80% for the vapor superheating of 5–10 K at expander inlet. A control strategy is proposed to achieve better system performance under varied heat source and environment conditions. By use of residual frequency and adjusting pumping frequency, the vapor pressure at expander inlet can be automatically adjusted to reach the optimal value. Transient tests indicate that the electric quality is insensitive to the step change of external loads and heat/cold sources parameters. The thermohydraulic parameters are self-adapted to the change of external parameters. This work provides a self-adapting strategy for ORC operation at varied heat/cold source parameters.

Keyword :

Electric energy quality Organic Rankine cycle Single screw expander Steady state Transient operation

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Cao, Shuang , Xu, Jinliang , Miao, Zheng et al. Steady and transient operation of an organic Rankine cycle power system [J]. | Renewable Energy , 2019 , 133 : 284-294 .
MLA Cao, Shuang et al. "Steady and transient operation of an organic Rankine cycle power system" . | Renewable Energy 133 (2019) : 284-294 .
APA Cao, Shuang , Xu, Jinliang , Miao, Zheng , Liu, Xiulong , Zhang, Ming , Xie, Xuewang et al. Steady and transient operation of an organic Rankine cycle power system . | Renewable Energy , 2019 , 133 , 284-294 .
Export to NoteExpress RIS BibTex
Dynamics of droplet and liquid layer penetration in three-dimensional porous media: A lattice Boltzmann study EI SCIE Scopus
期刊论文 | 2019 , 31 (4) , 042106 | PHYSICS OF FLUIDS
SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

Liquid penetration analyses for porous media are of great importance in a wide range of industrial applications including, but not limited to, water infiltration in complex soil, hydrocarbon recovery, and liquid seepage through sediments. Depicting the details of two-phase flow in porous media is challenging due to the complex fluid-solid interaction in porous structure. In the present work, we use the three-dimensional multiphase lattice Boltzmann model with a large density ratio to investigate the droplet and liquid layer penetration in complex porous media. It is found that lower porosity leads to larger interactions at the liquid-solid interface and causes stronger drag force acting on the droplet. Both hydrophobic and hydrophilic substrates tend to facilitate droplet migration from the outside to the inside of the porous media. Decreasing the interfacial tension enhances liquid deformation and results in more liquid breakup. Due to the large total momentum dissipation, an increased viscosity ratio causes a reduction of the penetration rate. Even with identical porosity, the pores in parallel to the gravitational force, compared with the perpendicular structure, make the drag force relatively smaller, leading to a faster penetration and stretching interfaces. Overall, this work not only demonstrates the capacity of the multiphase lattice Boltzmann method but also sheds some light on the mechanism of droplet and liquid layer penetration through the porous media. Published under license by AIP Publishing

Keyword :

CONTACT EVAPORATION FLOW IMBIBITION IMPACT SURFACE VISCOUS-LIQUID WATER SEEPAGE

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Shi, Y , Tang, GH , Lin, HF et al. Dynamics of droplet and liquid layer penetration in three-dimensional porous media: A lattice Boltzmann study [J]. | PHYSICS OF FLUIDS , 2019 , 31 (4) : 042106 .
MLA Shi, Y et al. "Dynamics of droplet and liquid layer penetration in three-dimensional porous media: A lattice Boltzmann study" . | PHYSICS OF FLUIDS 31 . 4 (2019) : 042106 .
APA Shi, Y , Tang, GH , Lin, HF , Zhao, PX , Cheng, LH . Dynamics of droplet and liquid layer penetration in three-dimensional porous media: A lattice Boltzmann study . | PHYSICS OF FLUIDS , 2019 , 31 (4) , 042106 .
Export to NoteExpress RIS BibTex
Thermal-hydraulic-structural Analysis and Design Optimization for Micron-sized Printed Circuit Heat Exchanger EI Scopus CSCD SCIE
期刊论文 | 2019 , 28 (2) , 252-261 | Journal of Thermal Science
SCOPUS Cited Count: 1
Abstract&Keyword Cite

Abstract :

The Printed Circuit Heat Exchanger (PCHE) is one of the most promising heat exchangers for Synergetic Air-breathing and Rocket Engine (SABRE). To reduce pressure drop and improve compactness, the micron-sized PCHE made up of rectangular channels of tens of microns in size, is used in SABRE. In present work, we focus on thermal-hydraulic-structural characteristics of micron-sized PCHE by conducting three-dimensional (3-D) numerical simulation. Helium and hydrogen are employed as the working fluids and the Stainless Steel 316 (SS316) as the solid substrate. The thermal-hydraulic performance of the micron-sized PCHE is discussed by using the commercial Computational Fluid Dynamics (CFD) software of Fluent. ANSYS-Mechanical is also employed to simulate stress field of representative PCHE channels. The mechanical stress induced by pressure loading and the thermal stress induced by temperature gradient are found to be equally important sources of stress. To improve comprehensive performances of micron-sized PCHE, two types of channel arrangements and different channel aspect ratios are studied. The double banking is of higher thermal-hydraulic performance compared to the single banking while the stress performance is identical for the two modes. Meanwhile, the effect of channel aspect ratio is investigated by comparing thermal-hydraulic characteristics and structural stress of the model. The rectangular channel with w/h=2 achieves the most balanced stress characteristic and higher thermal-hydraulic performance. © 2018, Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature.

Keyword :

channel arrangement Channel aspect ratios Printed circuit heat exchangers Structural analysis and designs Structural characteristics Structural performance Synergetic air-breathing and rocket engines Thermal-hydraulic performance

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Hou, Yaqiong , Tang, Guihua . Thermal-hydraulic-structural Analysis and Design Optimization for Micron-sized Printed Circuit Heat Exchanger [J]. | Journal of Thermal Science , 2019 , 28 (2) : 252-261 .
MLA Hou, Yaqiong et al. "Thermal-hydraulic-structural Analysis and Design Optimization for Micron-sized Printed Circuit Heat Exchanger" . | Journal of Thermal Science 28 . 2 (2019) : 252-261 .
APA Hou, Yaqiong , Tang, Guihua . Thermal-hydraulic-structural Analysis and Design Optimization for Micron-sized Printed Circuit Heat Exchanger . | Journal of Thermal Science , 2019 , 28 (2) , 252-261 .
Export to NoteExpress RIS BibTex
10| 20| 50 per page
< Page ,Total 20 >

Export

Results:

Selected

to

Format:
FAQ| About| Online/Total:2651/65829287
Address:XI'AN JIAOTONG UNIVERSITY LIBRARY(No.28, Xianning West Road, Xi'an, Shaanxi Post Code:710049) Contact Us:029-82667865
Copyright:XI'AN JIAOTONG UNIVERSITY LIBRARY Technical Support:Beijing Aegean Software Co., Ltd.