Flow phenomenon of micron-sized particles during cold spray additive manufacturing: High-speed optic observation and characterization
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Powder Technology"
DOI: 10.1016/j.apt.2019.12.037
Abstract: Abstract A high-speed laser shadowgraph observation of the particles flow during cold spraying enables a good phenomenological characterization. The particles in-flight behaviour develops a kinematics with two regimes regardless the powder nature. When leaving the… read more here.
Keywords: peek powders; observation; gas velocity; speed ... See more keywords
Hydrodynamic behavior of silicon particles with a wide size distribution in a draft tube spout-fluid bed
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2017.07.071
Abstract: Abstract An experimental study on the hydrodynamic behavior of silicon particles with a wide size distribution in a draft tube spout-fluid bed was performed in a 182 diameter cylindrical column with a flat gas distributor.… read more here.
Keywords: gas velocity; velocity; draft tube;
Experimental limit on the validity of Markstein relation
Sign Up to like & getrecommendations! Published in 2020 at "Experimental Thermal and Fluid Science"
DOI: 10.1016/j.expthermflusci.2020.110129
Abstract: Abstract A PIV-based system has been set-up for the simultaneous measurement of the local propagation velocity and the flame stretch of laminar jet premixed flames. The contributions of the flame front curvature and the strain… read more here.
Keywords: flame; experimental limit; velocity; gas velocity ... See more keywords
Linear instability of viscoelastic planar liquid sheets in the presence of gas velocity oscillations
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Non-Newtonian Fluid Mechanics"
DOI: 10.1016/j.jnnfm.2019.104169
Abstract: Abstract The linear temporal instability of a viscoelastic liquid sheet has been studied here, in the presence of gas velocity oscillations. The Floquet theory was applied to solve this problem. More than one unstable region… read more here.
Keywords: parametric unstable; presence gas; instability viscoelastic; gas velocity ... See more keywords
Mathematical analysis of characteristic pressure fluctuations in a bubbling fluidized bed
Sign Up to like & getrecommendations! Published in 2018 at "Powder Technology"
DOI: 10.1016/j.powtec.2018.04.030
Abstract: Abstract Mathematical analysis methods including statistical, power spectral, and chaos analysis were used to analyze the pressure fluctuations in a bubbling fluidized bed. Different characteristic indicators of pressure fluctuations were calculated such as average pressure,… read more here.
Keywords: gas velocity; fluctuations bubbling; pressure fluctuations; pressure ... See more keywords
Electrical Capacitance Volume Tomography for Characterization of Gas–Solid Slugging Fluidization with Geldart Group D Particles under High Temperatures
Sign Up to like & getrecommendations! Published in 2018 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.7b04733
Abstract: A three-dimensional ECVT sensing technique is applied to imaging complex slugging phenomena of a gas–solid fluidized bed under ambient and elevated temperature conditions. The study indicates that the time interval between rising slugs decreases with… read more here.
Keywords: velocity; gas velocity; gas; fluidized bed ... See more keywords
Two types of distribution of the gas velocity dispersion of MaNGA galaxies
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202040029
Abstract: The distribution of the gas velocity dispersion sigma across the images of 1146 MaNGA galaxies is analyzed. We find that there are two types of distribution of the gas velocity dispersion across the images of… read more here.
Keywords: gas velocity; velocity dispersion; distribution;
Correlation between centre offsets and gas velocity dispersion of galaxy clusters in cosmological simulations
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1222
Abstract: The gas is the dominant component of baryonic matter in most galaxy groups and clusters. The spatial offsets of gas centre from the halo centre could be an indicator of the dynamical state of cluster.… read more here.
Keywords: centre offsets; sigma; offsets gas; gas velocity ... See more keywords