Results 1 to 10 of about 8,639 (236)

Second integral generalization of the Crocco invariant for 3D flows behind detached bow shock wave [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
Stationary flows of an ideal gas behind the detached bow shock are investigated in the general 3D case. The well-known integral invariant (V.N.Golubkin, G.B.Sizykh, 2019), generalizing the axisymmetric invariant of (L.Crocco, 1937) to asymmetric flows ...
Grigory Sizykh
doaj   +1 more source

On Vorticity Dynamics in Turbulent Wake behind Circular Cylinder [PDF]

open access: yesMATEC Web of Conferences, 2022
The circular cylinder turbulent wake is studied experimentally using Particle Image Velocimetry (PIV) method. The vorticity component parallel to the cylinder axis is evaluated from measured velocity field.
Uruba Václav, Procházka Pavel
doaj   +1 more source

Flow Characteristics in Plane S-type Axial Extended Tubular Pump

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 The S-type axial extended tubular pump is a device widely used in various hydraulic engineering projects. The objective of this paper is to analyze the pressure pulsation characteristics and flow stability in the pump under different working ...
QUAN Li, LIU Ying, WU Zehao, YAN Jie
doaj   +1 more source

Ocean Barotropic Vorticity Balances: Theory and Application to Numerical Models

open access: yesJournal of Advances in Modeling Earth Systems, 2023
The barotropic vorticity (BV) balance is fundamental when interpreting the ocean gyre circulation. Here we propose an intercomparison of vorticity equations for the depth‐integrated flow applied to ocean models. We review four distinct variants of the BV
Robin Waldman, Hervé Giordani
doaj   +1 more source

An Analysis of Air Flow in the Baking Chamber of a Tunnel-Type Electric Oven

open access: yesComputation, 2023
The baking process in tunnel ovens can be influenced by many parameters. Among these, the most important can be considered as: the baking time, the volume of dough pieces, the texture and humidity of the dough, the distribution of temperature inside the ...
Gabriel-Alexandru Constantin   +4 more
doaj   +1 more source

Numerical Investigation on the Effect of Section Width on the Performance of Air Ejector with Rectangular Section

open access: yesEntropy, 2023
Due to its simple structure and lack of moving parts, the supersonic air ejector has been widely applied in the fields of machinery, aerospace, and energy-saving. The performance of the ejector is influenced by the flow channel structure and the velocity
Ying Zhang   +5 more
doaj   +1 more source

Right Ventricular Flow Vorticity Relationships With Biventricular Shape in Adult Tetralogy of Fallot

open access: yesFrontiers in Cardiovascular Medicine, 2022
Remodeling in adults with repaired tetralogy of Fallot (rToF) may occur due to chronic pulmonary regurgitation, but may also be related to altered flow patterns, including vortices.
Ayah Elsayed   +12 more
doaj   +1 more source

Analysis of Wind Vorticity and Divergence in the High-latitude Lower Thermosphere: Dependence on the Interplanetary Magnetic Field (IMF) [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2008
To better understand the physical processes that control the high-latitude lower thermospheric dynamics, we analyze the divergence and vorticity of the high-latitude neutral wind field in the lower thermosphere during the southern summertime for ...
Young-Sil Kwak   +5 more
doaj   +1 more source

Swimming mechanics and propulsive efficiency in the chambered nautilus [PDF]

open access: yesRoyal Society Open Science, 2018
The chambered nautilus (Nautilus pompilius) encounters severe environmental hypoxia during diurnal vertical movements in the ocean. The metabolic cost of locomotion (Cmet) and swimming performance depend on how efficiently momentum is imparted to the ...
Thomas R. Neil, Graham N. Askew
doaj   +1 more source

Harnessing oscillatory fluid behaviour to improve debris wash-out in ureteroscopy

open access: yesFrontiers in Urology, 2023
In ureteroscopy, a common method for kidney stone removal, a ureteroscope is inserted into the patient’s kidney, through which working tools such as a laser are inserted.
Harry C. A. Reynolds   +3 more
doaj   +1 more source

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