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81
Online Projective Integral with Proper Orthogonal Decomposition for Incompressible Flows Past NACA0012 Airfoil
Published 2012-01-01“…The second and the third POD modes assist the first mode by correcting magnitudes and phases of vorticity fields. However, adding the fifth POD mode in the model leads to some incorrect results in phase-shift forms for both drag and lift coefficients. …”
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82
Smoke Simulation with Detail Enhancement in Ship Fires
Published 2025-01-01“…Next, the vortex particles are sampled within the grid, and the loss of vorticity is measured before and after vortex stretching to compensate for the missing smoke details. …”
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83
Scale effect for hydraulic model of a mixed flow nuclear main pump
Published 2025-01-01“…In the range of full flow conditions, the head, hydraulic efficiency, impeller efficiency, guide vane energy loss, internal flow field, and vorticity distribution of PP and MPs are basically consistent with the trend of flow rate variations. …”
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84
Impact of a Diagnostic Pressure Equation Constraint on Tornadic Supercell Thunderstorm Forecasts Initialized Using 3DVAR Radar Data Assimilation
Published 2013-01-01“…It is found that the experiments using DPEC generally predict higher low-level vertical vorticity than the experiments not using DPEC near the time of observed tornadoes. …”
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85
A quasi-lumped model for the peripheral distortion of the arterial pulse
Published 2011-11-01“…We report that close to the heart, convection effects related to the change in the magnitude of the velocity of blood dominate the alteration of the shape of the pressure pulse, while at remote sites of the vascular tree, convection of vorticity, related to the change in the direction of the velocity of blood with respect to a mean axial flow, prevails. …”
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86
Analysis of Pressure Pulsation Induced by Rotor-Stator Interaction in Nuclear Reactor Coolant Pump
Published 2017-01-01“…Besides, the vortex shedding or backflow from the impeller blade exit has the same frequency as pressure pulsation but there are phase differences, and it has been confirmed that the absolute value of phase differences reflects the vorticity intensity.…”
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87
A linear filter regularization for POD-based reduced-order models of the quasi-geostrophic equations
Published 2023-03-01“…Our regularization is based on the so-called BV-$\alpha $ model, which modifies the nonlinear term in the QGE and adds a linear differential filter for the vorticity. To show the effectiveness of the BV-$\alpha $ model for ROM closure, we compare the results computed by a POD-Galerkin ROM with and without regularization for the classical double-gyre wind forcing benchmark. …”
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88
Amplification of Northern Hemisphere winter stationary waves in a warming world
Published 2025-01-01“…The streamfunction budget analysis reveals relative vorticity advection is mainly associated with this process. …”
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89
The Study of the Impact of Temperature and Wind In the Southern Low Pressure Systems
Published 2020-06-01“…The results of wind speed changes showed that the increased (decreased) wind speed simulation caused an increase (decrease) in relative vorticity, thus the southern low pressure was intensified (weakened). …”
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90
Fluid–structure interaction in a follow-up study of arterio-venous fistula maturation
Published 2024-11-01“…The main findings revealed: a) counter-rotating vortices in the anastomosis cross-section affecting local pressure conditions; b) different temporal progression of vorticity, shear strain rate, and turbulent kinetic energy and similarity of the temporal progression of WSS obtained under the assumptions of the rigid-walled and FSI; c) a negligible low-WSS zone in the presented thrombosis-free AVF; d) migration of the zone of maximal temporal wall deformation over time.…”
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91
Aerodynamic Performance of a Passive Pitching Model on Bionic Flapping Wing Micro Air Vehicles
Published 2019-01-01“…This phenomenon can be attributed to a vorticity moment whose component in the lift direction grows at a rapid speed. …”
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92
Hydromagnetic Flow of Two Immiscible Couple Stress Fluids through Porous Medium in a Cylindrical Pipe with Slip Effect
Published 2023-01-01“…Instead of the classical no-slip condition, the slip velocity along with vanishing couple stress boundary conditions is taken on the surface of the rigid cylinder, and continuity conditions of velocity, vorticity, shear stress, and couple stress are imposed at the fluid-fluid interface. …”
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93
Enhancing Micro-Droplet Mixing in Microfluidic Systems Via Electrowetting-Induced Parametric Oscillations
Published 2025-01-01“…The simulations reveal that parametric oscillations significantly increase vorticity magnitude and shear rate around the droplet interface, leading to improved mixing compared to free oscillation. …”
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94
Tropical Atlantic Hurricanes, Easterly Waves, and West African Mesoscale Convective Systems
Published 2010-01-01“…Using the AEW signature in the 700 hPa vorticity, a backward trajectory was performed to the African coast, starting from the date and position of each hurricane, when and where it was catalogued as a tropical depression. …”
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95
A New Dynamical Index for India-Burma Trough
Published 2018-01-01“…What is more, through a correlation analysis on the grid point precipitation field, respectively, with the IIBT and the India-Burma trough indices defined with vorticity and geopotential height, over southern Asia the correlation pattern between the IIBT and the precipitation field is found to nearly be the sum of the correlation patterns of the latter 2 indices with the precipitation. …”
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96
Impact of Parameterization of Physical Processes on Simulation of Track and Intensity of Tropical Cyclone Nargis (2008) with WRF-NMM Model
Published 2012-01-01“…A few more diagnostic fields like vertical velocity, vorticity, and heat fluxes are also evaluated. The results indicate that cumulus convection play an important role in the movement of the cyclone, and PBL has a crucial role in the intensification of the storm. …”
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97
Analysis of the Unsteady Flow Field in a Centrifugal Compressor from Peak Efficiency to Near Stall with Full-Annulus Simulations
Published 2014-01-01“…At near stall operating point, vorticity from the separation is shed into vortex cores which are periodically formed and convected downstream along the suction side.…”
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98
A Survey on the Relationship between Ocean Subsurface Temperature and Tropical Cyclone over the Western North Pacific
Published 2020-01-01“…Specifically, compared with the subsurface warm years, there are larger relative vorticity, higher relative humidity, smaller vertical wind shear, weaker net longwave radiation, and higher ocean mixed layer temperature in the southeastern quadrant during cold years, which are all favorable for genesis and development of TC.…”
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99
Thermal Performance Augmentation of Double-Pipe Heat Exchanger-A Critical Review
Published 2025-11-01“…An additional section on alternating cross-sectional tubes used in double-pipe heat exchangers has been summarized, exhibiting increased vorticity without vortex generator devices. Longitudinal vortices are created throughout the tube's length, leading to a notable improvement in its thermal efficiency. …”
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100
Easterly Wave Disturbances over Northeast Brazil: An Observational Analysis
Published 2015-01-01“…A synoptic analysis shows that between days −2 d and 0 d, the low level winds presented cyclonic relative vorticity and convergence anomalies both in 2006 and 2007. …”
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