Optical leptons by Lubomir M. Kovachev

“…We obtain optical vortices with classical orbital momentum ℓ=1 and spin j=±1/2 as exact solutions of a system of nonlinear Maxwell equations (NMEs). …”
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Robust control problems of vortex dynamics in superconducting films with Ginzburg-Landau complex systems by Aziz Belmiloudi

“…The objective of such study is to control the motion of vortices in the superconductor films by taking into account the influence of noises in data. …”
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Computational fluid dynamics for naval hydrodynamics by Visonneau, Michel, Deng, Ganbo, Guilmineau, Emmanuel, Leroyer, Alban, Queutey, Patrick, Wackers, Jeroen

“…Turbulence modelling of thick boundary layers and vortical flows requires anisotropic RANS models or hybrid RANS/LES in case of strongly separated flows. …”
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Numerical Simulation of the Static and Dynamic Aerodynamics of a UAV under Wake Flows by Bai-gang Mi, Hao Zhan

“…The results demonstrate that both the steady and unsteady aerodynamics of the fly wing are affected by wake flows: wingtip vortices increase the lift-to-drag ratio and considerably change the dynamic damping; jet flow reduces both the static and dynamic damping; and propeller slipstream leads to slow variations in the dynamic damping and decreases in the lift-to-drag ratio.…”
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Vortex-Induced Vibration Suppression of a Circular Cylinder with Vortex Generators by Shi-bo Tao, Ai-ping Tang, Da-bo Xin, Ke-tong Liu, Hong-fu Zhang

“…By correlation analysis, it can be concluded that the vortex generators can inhibit the communication between the two shear layers and produce streamwise vortices to generate a disturbance in the spanwise direction.…”
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Numerical and experimental investigations on a hybrid vertical axis wind turbine by Budea Sanda, Simionescu Ștefan-Mugur, Copăceanu Valentin

“…CFD modeling and simulation show a slight instability at low velocities, up to entering the nominal working regime of 2-3 m/s, but also the separation of vortices and the fluid-blade interaction at over 9 m/s. …”
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A Vortex Identification Method Based on Extreme Learning Machine by Jun Wang, Lei Guo, Yueqing Wang, Liang Deng, Fang Wang, Tong Li

“…This method transforms the vortex identification problem into a binary classification problem, and can quickly, objectively, and robustly identify vortices from the flow field. A large number of experiments prove the effectiveness of our method, which can improve or supplement the shortcomings of existing methods.…”
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Investigating the effect of cold fluid flow direction used in the outer tube on heat transfer and hot fluid pressure drop in the inner tube by numerical method by Karrar A. Hammoodi, Rassol H. Rasheed, Seyyed Amirreza Abdollahi, Taher Yousefzadeh Adeli, Seyyed Faramarz Ranjbar, Amin Hadidi, Seyed Hossein Hashemimian, Pooya Pasha

“…The tabulator's two outlet ducts collide to form vortices, pulling the spinning flow toward the wall and causing the wall's boundary layer to collapse.…”
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Nano-shaping of chiral photons by Sunaba Yuji, Ide Masaki, Takei Ryo, Sakai Kyosuke, Pin Christophe, Sasaki Keiji

“…Here, we demonstrate the possibility of forming single-nanometer-scale, highly intense fields of optical vortices using designed plasmonic nanostructures. The orbital and spin angular momenta provided by a Laguerre–Gaussian beam are selectively transferred to the localized plasmons of a metal multimer structure and then confined into a nanogap. …”
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Crosswise Wind Shear Represented as a Ramped Velocity Profile Impacting a Forward-Moving Aircraft by Mahmood Khalid

“…While it would be difficult to model an instantaneous velocity gradient in a lateral plane, a vortical flow impinging from the sides which represents a wind shear in a vertical direction is imposed on a forward-moving aircraft to investigate the effect on the aerodynamic performance. …”
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Optimization of Flow Characteristics and Diffusion Angles of Forward Inflow Forebay of Pumping Station by LI Yun, LI Chaochao, LI Mingyang, GU Jingchao

“…The results show that: ① As the diffusion angle increases, the number of vortices in the forebay flow rises from one to two. …”
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Study on the Effect of Air Throttling on Flame Stabilization of an Ethylene Fueled Scramjet Combustor by Ye Tian, Shunhua Yang, Jialing Le

“…Compared with the combustor without air throttling, the flow field with air throttling had a lower velocity and higher pressure, temperature, and vortices intensity. Air throttling was an effective way to achieve flame stabilization; the combustion in the combustor without air throttling was nearly blowout. …”
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Numerical Simulation of a Partly Filled Rectangular Tank with Fuel Oil by Farhan Lafta Rashid, Emad Qasem Hussein, Mudhar A. Al-Obaidi, Awesar A. Hussain

“…The usage of vertical shields allows for around 20% of the greatest contact energy to be deflected, which is attributed to the potential of generating turbulence and vortices by the baffle. …”
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Performance Characteristics of Vortex Wind Turbines with The Computational Fluid Dynamics (CFD) Aided Simulation by Rusianto Toto, Sudarsono, Kristiyana Samuel, Purwanto Yuli

“…The mast column oscillates with the wind, harnessing the von Karman vortices generated as the fluid passes through the column structure. …”
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Receptivity of the Boundary Layer over a Blunt Wedge with Distributed Roughness at Mach 6 by Zhenqing Wang, Mingfang Shi, Xiaojun Tang, Lidan Xu, Xiaokun Sun

“…The location of the dominant mode which is changed to a second-order harmonic mode from the fundamental mode moves upstream. The vortices caused by roughness also impact the evolution of disturbance waves in the boundary layer. …”
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Simulation Analysis of Air Flow and Turbulence Statistics in a Rib Grit Roughened Duct by I. I. Vogiatzis, A. C. Denizopoulou, G. K. Ntinas, V. P. Fragos

“…Different geometries of roughness elements investigated have demonstrated the pivotal role that vortices and associated turbulence have on the heat transfer characteristics of solar air heater ducts by increasing the convective heat transfer coefficient. …”
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The Three-Dimensional Velocity Distribution of Wide Gap Taylor-Couette Flow Modelled by CFD by David Shina Adebayo, Aldo Rona

“…The model flow is above the critical Taylor number at which axisymmetric counterrotating Taylor vortices are formed. The tangential velocity profiles at all axial locations are different from typical journal bearing applications, where the velocity profiles are quasilinear. …”
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Topological Excitations in Quantum Spin Systems by Ranjan Chaudhury, Samir K. Paul

“…Apart from theoretical analysis of the existence and properties of spin vortices and antivortices, the possible experimental consequences and signatures are also highlighted. …”
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An Investigation on the Effect of Endwall Movement on the Tip Clearance Loss Using Annular Turbine Cascade by Hesham M. El-Batsh, Magdy Bassily Hanna

“…The total pressure loss coefficient obtained from the numerical technique was compared with the experimental measurements, and the comparison showed good agreement. Tip clearance vortices were observed in the tip clearance gap. It was found through this study that end-wall movement reduces tip leakage loss through the cascade.…”
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Effect of Solid-to-Gas Ratio on Powder Fuel Mixing in a Cavity-Based Supersonic Combustion Chamber with Induced Shock: A Numerical Study by Zuodong Liang, Ming Jiang, Shaoqing Hu, Kai Ma, Guiyang Xu, Wenjie Wang, Yuezu Miao, Hongyan Li

“…The interaction between powder fuels and the peripheral rotating regions of these vortices significantly improves the mixing efficiency, with the highest average mixing efficiency increased by 30%. …”
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