-
181
Modelling the Movement of Concentrate Particles in a Flash Furnace
Published 2024-12-01“…The particles moved in the form of one stream extending along the reaction shaft, accumulating on the side walls of the shaft and settler. Vortices were formed in the region of the settler tub containing particles to the upper spaces of the reaction shaft. …”
Get full text
Article -
182
The Lift Enhancement Effect of a New Fluidic Oscillator on High-Lift Wings
Published 2025-01-01“…It was observed that, at low frequencies, the fluidic oscillator effectively controls the shedding of separation vortices, ensuring that the frequency of vortex shedding aligns with the oscillation frequency of the fluidic oscillator. …”
Get full text
Article -
183
Engineering Application of an Identification Method to Shock-Induced Vortex Stability in the Transonic Axial Fan Rotor
Published 2021-01-01“…It is found that three vortical structures such as tip leakage vortex (TLV), shock-induced vortex (SIV), tip separation vortex (TSV) in addition the tip leakage vortex-induced vortex (TLV-IV, which only occurs when the TLV strength increases to a certain extent) frequently exist near the blade tip and then abstracted as a tip vortex model. …”
Get full text
Article -
184
Influence and optimization of building opening configurations on the performance of enhanced roof ventilation units (ERU): a numerical and orthogonal study
Published 2025-02-01“…The findings reveal that: (1) For volume flow rate, the influence ranking is O > C > B > D > G > A, while for outlet average air age and volume air age, the rankings are O > G > A > D > C > B and O > A > G > C > D > B; (2) The indoor combinatorial ventilation efficiency under optimal configuration is 9.75 %, the flow purification rate and air exchange efficiency are 20.21 % and 48.27 %; (3) The percentage dissatisfied (PDT and PDD) under optimal configuration are 0.31 %; (4) Local vortices can lead to poor ventilation performance, but indoor circulation can bring the air exchange efficiency approaching the ideal 50 %. (5) The opening configurations focus on building orientation and dominant wind direction. (6) Appropriate opening configurations are more conducive to ventilation than increasing the area openings. …”
Get full text
Article -
185
Catastrophic and violent tornadoes: a detailed review of physical-mathematical models
Published 2024-11-01“…As an alternative, the authors also proposed a model for the emergence of a tornado from a thundercloud filled with highly rotating mesoscale vortices. In this case, the theory of mesoscale turbulence is used, which allows for the phenomenon of the red turbulent cascade: the energy transfer from smaller turbulent eddies to the region of large scales. …”
Get full text
Article -
186
Experimental Investigations of Self-adjusting Bionic Flaps on Low-aspect Ratio Wings
Published 2025-02-01“…However, the aerodynamic characteristics of a high AR wing are completely different from the lower one due to wingtip vortices. Therefore, in the present work, this flap is tested on a S5010 profiled wing of two different low ARs, 2.0 and 1.0, in the Re range of MAVs application. …”
Get full text
Article -
187
Study on Flow Structure Characteristics Along the Latticework Duct Subchannels and Classification Boundary Prediction
Published 2024-12-01“…The longitudinal vortex was mainly formed by one turning vortex and two detached vortices. The narrowing of the turning channel will cause the turning vortex to induce a secondary longitudinal vortex. …”
Get full text
Article -
188
Simulation Study of Carbon Extraction from Coal Gasification Fine Slag by Airflow Classification Based on CFD-DEM
Published 2025-01-01“…The tangential air inlet leads to the generation of secondary vortices in the grading zone and elution zone that interfere with each other, affecting the separation efficiency of carbon and ash particles. …”
Get full text
Article -
189
Numerical simulation and theoretical study on the impact of wind-sand flow of high-speed trains in long tunnel space
Published 2024-06-01“…Secondly, both flows show asymmetric intrusion into the cabin due to the asymmetrical tunnel arrangement, but the sand particles in the wind-sand flow are affected by the vortices and tunnel walls, resulting in more asymmetric flow and some particles being trapped in the grids or filters, leading to outflow ρ Q < inflow ρ Q . …”
Get full text
Article -
190
Thermocapillary convection in superimposed fluids confined within superhydrophobic surfaces of a microchannel
Published 2025-02-01“…In particular, it is shown that thermo-capillarity generates convective currents with nominally a pair of counter-rotating vortices in each fluid, which is sometimes increased and accompanied by a change in their sense of rotation and the magnitude of the peak velocities by variations in the dimensionless slip coefficient. …”
Get full text
Article -
191
A multi‐tagged SAR ocean image dataset identifying atmospheric boundary layer structure in winter tradewind conditions
Published 2025-01-01“…Twelve tags define roll vortices, convective cells, mixed rolls and convective cells, fronts, rain cells, cold pools and low winds. …”
Get full text
Article -
192
Control of giant orbital angular momentum bursts of structured Laguerre-Gaussian beams in a medium with general astigmatism
Published 2024-02-01“…Since degenerate ring dislocations are formed by optical vortices with opposite topological charges, but with equal weights, their destruction is accompanied by appearing of vortex pairs in the form of topological dipoles (their number is equal to the radial number n). …”
Get full text
Article -
193
Assessment of RANS Models for Milli-Channel Turbulent Flow in Drip Irrigation Emitter
Published 2024-12-01“…The SST and BSL models, which employ IYPT, captured induced vortices at channel corners; however, they underestimated emitter flow rates. …”
Get full text
Article -
194
Tropical Cyclone Size Prediction and Development of An Error Correction Method
Published 2025-01-01“…The analysis indicates that, despite the accurate initial center position and intensity, CMA-TYM model's initial vortices display substantial errors in both inner-core and outer-core sizes. …”
Get full text
Article -
195
Effects of Low Reynolds Number on Wake-Generated Unsteady Flow of an Axial-Flow Turbine Rotor
Published 2005-01-01“…The regions of high turbulence intensity due to the wake and the secondary vortices were increased dramatically with the decreasing Reynolds number. …”
Get full text
Article