A5111548435- Nanofluid Flow and Heat Transfer
- Rheology and Fluid Dynamics Studies
- Fluid Dynamics and Thin Films
- High-Velocity Impact and Material Behavior
- Advanced materials and composites
- Metal and Thin Film Mechanics
- Microfluidic and Capillary Electrophoresis Applications
- Microstructure and mechanical properties
- Microfluidic and Bio-sensing Technologies
- nanoparticles nucleation surface interactions
- Advanced ceramic materials synthesis
- Heat Transfer and Boiling Studies
- Glass properties and applications
- Surface Treatment and Residual Stress
- Seismic Imaging and Inversion Techniques
- Copper Interconnects and Reliability
- Metallic Glasses and Amorphous Alloys
- Nanopore and Nanochannel Transport Studies
- Nuclear Engineering Thermal-Hydraulics
- Mineralogy and Gemology Studies
- High-Temperature Coating Behaviors
- Combustion and Detonation Processes
- Fusion materials and technologies
- Hydraulic Fracturing and Reservoir Analysis
- Dust and Plasma Wave Phenomena
Inner Mongolia University
2022-2024
Dalian University of Technology
2024
Baogang Group (China)
2023
University of Science and Technology Beijing
2021
Ordnance Engineering College
2011-2014
China University of Petroleum, Beijing
2014
Complex fluids always possess obvious non-Newtonian properties that facilitate the occurrence and development of vortex instability in porous media, which is critical significance many natural industrial processes. It widely known this flow regulated by both fluid solid structure. However, quantitative understanding how structural characteristics space affect evolution still nascent, especially case with varying rheological properties. Herein, polymer solutions distinct through microcavity...
The mineral composition of copper–cobalt ores is more complex than that copper sulfides, and it also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated ore. In this work, a liberation analyzer (MLA) was employed study characteristics minerals. As significant mineralogical characteristic, degree useful aggregates determined after grinding, correlation established between ore grinding size characteristics. results showed adopted occurred sulfide...
The present study provides analytical and numerical solutions for an electromagnetohydrodynamic (EMHD) flow using a Caputo time-fractional Maxwell model. is typical rectangular channel flow. When the scale of cross-stream much smaller than streamwise spanwise scales, model approximated as two-dimensional slit parallel plate Moreover, influence electric double layer (EDL) at solid-liquid interface also considered. electro-osmotic force generated by interaction between field EDL will induce...
Summary The real geological medium is close to viscoelastic media in which P- and S-wave can be generated. So only coupling wave field contains both obtained when original equation used for numerical simulation. In this paper the first-order velocity-stress of P-and separation deduced based on generalized standard linear solid. And correctness proved mathematically. This wave-field variables pure variables. staggered-grid high-order finite-difference method solve equation. Then got at same...
W f /Zr-based amorphous matrix composite is supposed as a potential penetrator material of armor-piercing projectile because it has both advanced piercing performance and environmentally friendly property, becomes the hot spot science study engineering application. To get deeper understand penetration mechanism influence temperature rise on structure target, target which penetrated by made studied SEM micro-hardness tester. Oxidation back severe, Martensite transformation happens around...
Cu-30wt%Ag alloy nanopowders were prepared by induction plasma system, and the effect of hydrogen content in atmosphere on morphology size distribution was studied. The results show that with increase content, is refined from 213 nm to 151 then 117 nm, however, there no obvious nanopowders. variation should be attributed introduction hydrogen, which leads change energy coupling degree between starting powder plasma.
This study conducts a comprehensive exploration of the elasticity and Marangoni instability exhibited by non-Newtonian polymer film within context an upper-convected Maxwell (UCM) model. The asymptotic solutions are derived utilizing stream function perturbation method based on long-wave assumption. numerical effectively solved at arbitrary wavelengths through implementation Chebyshev spectral collocation technique. results show that presence elastic stress renders more susceptible to...
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
Because of excellent mechanical, physical and chemical property Wf/Zr-based amorphous matrix composite attracts people’s interest becomes the hot spot science study engineering application. In this paper, change regulation hardness target around crater by projectile its mechanism are studied after firing test, it is found that section can be divided into 3 layers: Martensite layer, deformed fine grain layer normal from surface to interior steel thickness increases first then decreases in...
Summary Rayleigh surface wave has been used to research the character of shallow subsurface widely, and real geological medium is close viscoelastic media. This paper models in media with planar free by using staggered-grid finite-difference method based on generalized standard linear body firstly. In simulation process Levenberg-Marquarat algorithm which belonged nonlinear optimization adopted directly compute relaxation time fitting constant Q model. The stress imaging compact finite...
High strength tungsten alloys with different deformation of 20%, 40%, 50% and 60% were prepared by swaging, the impact fracture morphologies tested observed respectively Charpy tester SEM to study influence degree on behavior. The results show that increasing from 20% 60%, toughness reduces 99J 51J, 43J 29J. mode changes intergranular cleavage fracture.
The relations between specific surface area, morphologies and collection rate, feeding rate of Cu-Ag alloy nanopowders prepared by plasma induction system were studied area tester SEM. results show that with the increase powder from 300g/h to 500g/h 800g/h, decreases 59.1% 47.2% 46.1%, respectively, accordingly 9.25m 2 /g 7.17m 5.45m /g.
The penetration characteristics of tungsten fiber reinforced metallic glass matrix composite with different spacing were simulated by LS-DYNA programme. It is indicated that J-C constitutive model for describing deformation behaviour can accurately reflect the process composite. simulation results show has obvious self-sharpening behaviour, and its performance higher than alloy. depends on close-packing fibers separated glass.
Contrast ballistic tests were carried out on 93W alloy and W fiber reinforced Zr-based bulk metallic glass composite. The influence of penetrator material micro-hardness around target crater was studied using microstructure observation test. results show that adiabatic shear band appears in both targets after severe plastic deformation impact. effect composite is greater than alloy, the thickness with high formed by 2.5 times penetrator.
The effect of yield strength and elastic modulus matrix on shear stress in two phases composite reinforced with W fiber under pulse loading was simulated by ANSYS software. results show that the mechanical properties should be taken into consideration designing composite. high low can reduce fiber, is beneficial to keeping integrity during penetration, thus resulting improvement penetration capacity.
The failure mechanism of tungsten matrix composite was studied with microscale numerical simulation. results show that high strength particles are the real loading elements composite, its level embodies whole property to some extent. stress in is much higher than external load, so may take place when load less theoretical particles.
Converter steelmaking process usually involves many complex processes and technical specifications, the knowledge in field of iron steel smelting exists form documents databases, which lacks integration sharing. In order to assist real-time decision-making converter steelmaking, this paper investigates graph-based expert system for steelmaking. design graph, a top-down construction method is adopted, ontology level constructed first, then entities relations are extracted. Where each entity...