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Highly Porous Superconductors: Synthesis, Research, and Prospects

D. M. Gokhfeld, M. R. Koblischka, A. Koblischka-Veneva
2020 Physics of metals and metallography  
Methods for the synthesis of the main groups of porous superconductors are described.  ...  The pores in such su-perconducting materials provide refrigerant penetration, efficient heat dissipation and stable operation.  ...  The account for the fractal dimension of structural elements was made in a number of works [32-35] to describe the flow of fluids through porous media.  ... 
doi:10.1134/s0031918x20100051 fatcat:5bc2n3erpbbopiugaeihyjfcw4

Experimental and Simulation Research on the Preparation of Carbon Nano-Materials by Chemical Vapor Deposition

Bo Yang, Lanxing Gao, Miaoxuan Xue, Haihe Wang, Yanqing Hou, Yingchun Luo, Han Xiao, Hailiang Hu, Can Cui, Huanjiang Wang, Jianhui Zhang, Yu-Feng Li (+3 others)
2021 Materials  
Therefore, the development and research status of computational fluid dynamics (CFD) for CVD are summarized, as is the potential of combining experimental studies and numerical simulations to achieve and  ...  A major factor affecting the material structure is its preparation link.  ...  Their simulation results show that computational fluid dynamics has the potential to optimize process operating conditions and that carbon nanofibers can be grown uniformly on a large scale in a vertical  ... 
doi:10.3390/ma14237356 pmid:34885507 fatcat:bi554cjpkreafbnqunr6nayoty

A Computational Dynamic Fluid Analysis of Compressible Flow in PorousMedia

Gawusu S, Zhang X, Kolog P. Solomon, Abdul-Wadud A
2017 Innovative Energy & Research  
The study further confirmed that reservoir simulation describing a radial flow of a compressible fluid in porous media may be adequately performed using ordinary laptop computers.  ...  The study is a computational dynamic analysis which investigated the dynamics of fluid flow patterns in a homogeneous oil reservoir using the Radial Diffusivity Equation (RDE).  ...  Acknowledgement The authors wish to thank the Chinese Scholarship Council (CSC) for their tremendous support.  ... 
doi:10.4172/2576-1463.1000152 fatcat:zgf77zzjofh7ncrn2e7pxyukqi

Research Progress in Computational Fluid Dynamics Simulations of Membrane Distillation Processes: A Review

Long Chen, Binxin Wu
2021 Membranes  
Recently, computational fluid dynamics (CFD) simulation has been widely used in MD process analysis, such as MD mechanism and characteristics analysis, membrane module development, preparing novel membranes  ...  These projects should be combined with mass transfer, heat transfer and momentum transfer for more comprehensive and in-depth research.  ...  other fields, showing that it has a very broad application prospect.  ... 
doi:10.3390/membranes11070513 fatcat:ya7d3mrgjzgpzht6bo76bcxfyy

Research Status, Critical Technologies, and Development Trends of Hydraulic Pressure Pulsation Attenuator

Yan Wang, Tongsheng Shen, Chunsen Tan, Jian Fu, Shengrong Guo
2021 Chinese Journal of Mechanical Engineering  
Finally, the development trend of pulsation attenuators is prospected. This paper provides a reference for the research and application of pressure pulsation attenuators.  ...  AbstractHydraulic pumps are a positive displacement pump whose working principle causes inherent output flow pulsation. Flow pulsation produces pressure pulsation when encountering liquid resistance.  ...  The damping material type shown in Figure 8 (a) uses damping materials with a large attenuation coefficient, such as asbestos and rubber.  ... 
doi:10.1186/s10033-021-00532-z fatcat:tgmni2x4ejdntnnmbyvtb7ene4

Three-Dimensional Mineral Potential Mapping for Reducing Multiplicity and Uncertainty: Kaerqueka Polymetallic Deposit, QingHai Province, China

Yang Wang, Jianping Chen, Donghui Jia
2019 Natural Resources Research  
This research introduces a new method for predicting and evaluating the locations of concealed orebodies by reducing multiplicity and uncertainty.  ...  The simulation of oreforming processes for concealed mineralization requires the assessment of a regionÕs structural geology, ages of lithological units, degree of metamorphism, and role of magmatism in  ...  porous media, and a coupling equation for force-heat flow.  ... 
doi:10.1007/s11053-019-09539-9 fatcat:x6jjnizrxjb75ac6f553hmopty

Recapitulation and Prospect of Research on Flow Field in Coal Mine Gob

Rui Zhang, Jianwei Cheng, Zui Wang, Zhenlu Shao, Pengfei Wang
2021 Shock and Vibration  
A good understanding of the flow field in a sealed coal mine area is crucial in preventing and minimizing accidents associated with mine combustible gases and also for planning and implementing a mine  ...  This paper synthesizes the research results of flow field in gob in recent 40 years, covering the permeability of quarried areas, the airflow simulation in quarried areas, and the influence of ventilation  ...  formed with the development of computational fluid dynamics and computer technology.  ... 
doi:10.1155/2021/3730606 fatcat:tcrceq4gejc3llpyqnuisqicpq

Macromolecules at surfaces: Research challenges and opportunities from tribology to biology

Steve Granick, Sanat K. Kumar, Eric J. Amis, Markus Antonietti, Anna C. Balazs, Arup K. Chakraborty, Gary S. Grest, Craig Hawker, Paul Janmey, Edward J. Kramer, Ralph Nuzzo, Thomas P. Russell (+1 others)
2003 Journal of Polymer Science Part B: Polymer Physics  
The flow of confined fluids is very much like granular materials such as sand, powder, and colloidal particles.  ...  Benchmark computer simulations for a single adsorbed chain on a corrugated surface with and without hydrodynamic interactions would also be very valuable.  ... 
doi:10.1002/polb.10669 fatcat:75g5ks7gufg23lxppejcwil3sq

Closing the performance gap through better building physics

Simon J Rees
2017 Building Services Engineering Research & Technology  
More than thirty years of development of building energy simulation have seen the implementation of sophisticated tools that are now well integrated in the design process.  ...  However, a good deal of frustration remains over the discrepancies often found between predicted and measured performancethe so called 'performance gap'.  ...  The Institution's support for a journal of this type is foundational to the promotion of the science that underpins building services engineering practice.  ... 
doi:10.1177/0143624417693711 fatcat:xf7rflqee5bupj7nroesmz2jcm

Issues and future direction of thermal-hydraulics research and development in nuclear power reactors

P. Saha, N. Aksan, J. Andersen, J. Yan, J.P. Simoneau, L. Leung, F. Bertrand, K. Aoto, H. Kamide
2013 Nuclear Engineering and Design  
Further thermal-hydraulics research and development is continuing in both experimental and computational areas for operating reactors, reactors under construction or ready for near-term deployment, and  ...  As the computing power increases, the fine-scale multi-physics computational models, coupled with the systems analysis code, are expected to provide answers to many challenging problems in both operating  ...  Acknowledgements The authors appreciate the permission of their respective organizations for publication of this comprehensive paper covering many types of nuclear reactors, some operating and some in  ... 
doi:10.1016/j.nucengdes.2012.07.023 fatcat:byxe466vdvgftom7t73r45h6my

AEROACOUSTICS RESEARCH IN EUROPE: THE CEAS-ASC REPORT ON 1997 HIGHLIGHTS

S.W. Rienstra
1998 Journal of Sound and Vibration  
It was the first of a planned series of dedicated ASC-Workshops.  ...  The 3rd joint AIAA/CEAS Aeroacoustics Conference took place in Atlanta, GA (USA), May 12-14, 1997.  ...  (Daniel Berge) BEM/FEM method for fluid-structure coupling In collaboration with the research project of CASA Space Division on acoustic loads on very lightweight antennas, a method has been developed  ... 
doi:10.1006/jsvi.1998.1558 fatcat:macevkekzzb3jcyik5ozg5oi4q

Discussion of Visual Technique for Seepage Experiment Based on Transparent Rock-Soil Material

Jianjun Liu, Yao Wang, Rui Song, Yue Sun
2017 Open Civil Engineering Journal  
Method: A new technique of seepage model experiment based on transparent rock-soil material (TRSM) was introduced in this paper, combined with optical observation method, digital imaging process technology  ...  As one of the important methods in the study of seepage mechanic, seepage experiment has significance in the study of fluid flow.  ...  This kind of material can simulate the fluid flow in different medium based on the different raw material used in the preparation of transparent rock-soil material.  ... 
doi:10.2174/1874149501711010544 fatcat:6k4gcwypf5delmt4c6hgyrn574

Advancing Concrete Durability Research through X-ray Computed Tomography

Takafumi Sugiyama, Michael Angelo B. Promentilla
2021 Journal of advanced concrete technology  
Radiation technology such as X-ray computed tomography (X-ray CT) is a powerful tool for materials research.  ...  Image-based computational simulations provide us to estimate transport parameters such as diffusion tortuosity and water permeability in the digitized pore space.  ...  In addition, the authors express sincere gratitude to their former students and colleagues in the laboratory of Environmental Materials Engineering at Hokkaido University who were involved for their efforts  ... 
doi:10.3151/jact.19.730 fatcat:o5v4qmwvrvfkpkvbayqd7tfava

Adventures in Research: A History of Ames Research Center 1940-1965

John Niven, Edwin P. Hartman
1971 Journal of American History  
In this method a cooling fluid is introduced between the hot boundary layer and the wing surface by forcing the fluid through a porous wing skin.  ...  A possible solution to this problem was the application of suction through a porous surface installed over a portion of the leading edge. A study of porous materials suitable for Dr. Dean R.  ...  The use of such materials and structures in spacecraft as best to resist the impact of meteoroids had become a problem for research, as had also the erosion of spacecraft surface materials by the steady  ... 
doi:10.2307/1917664 fatcat:6xqqviqbwnflbpy3dummbe7fiq

Research on the application of molecular simulation technology in enhanced oil-gas recovery engineering

Jianping Xu, Yuanda Yuan, Qing Xie, Xuegang Wei, L. Zhang, S. Defilla, W. Chu
2021 E3S Web of Conferences  
Computer molecular simulation reveals the seepage mechanism of a certain oil displacement at the microscopic scale, and enriches the specific oil displacement flow theory system.  ...  In recent years, molecular simulations have received extensive attention in the study of reservoir fluid and rock properties, interactions, and related phenomena at the atomistic scale.  ...  simulation can be used to study a large number of fluid and rock properties, interactions and related concepts.  ... 
doi:10.1051/e3sconf/202123301124 fatcat:jk2ean7grzfchkwdld3qwbe6hq
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