Results 1 to 10 of about 433,649 (262)

Numerical simulation of supersonic gap flow. [PDF]

open access: yesPLoS ONE, 2015
Various gaps in the surface of the supersonic aircraft have a significant effect on airflows. In order to predict the effects of attack angle, Mach number and width-to-depth ratio of gap on the local aerodynamic heating environment of supersonic flow ...
Xu Jing   +3 more
doaj   +5 more sources

Effect of Gap Flow on the Characteristics of Flow-Around and Flow-Induced Vibration for Two Circular Cylinders with Roughness Strips

open access: yesApplied Sciences, 2019
In order to understand the gap flow between two cylinders, the characteristics of flow around two stationary cylinders and the flow-induced vibration of two staggered cylinders with roughness strips are numerically studied. The lift−drag responses,
Zuo-Mei Yang   +4 more
doaj   +3 more sources

Flux Flow Resistivity in Two-Gap Superconductor [PDF]

open access: yesJournal of the Physical Society of Japan, 2005
Summary: We investigate the flux flow state in a two-gap superconductor in which two \(s\)-wave gaps with different amplitudes exist on two separate Fermi surfaces. The flux flow resistivity is obtained on the basis of the Bardeen-Stephen relation and the result agrees well with the anomalous field dependence of the flow resistivity recently observed ...
Hiroshi Matsukawa, Jun Goryo
exaly   +2 more sources

Transitional vortices in wide-gap spherical annulus flow [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We develop a semianalytic formulation suitable for solving the Navier‐Stokes equations governing the induced steady, axially symmetric motion of an incompressible viscous fluid confined in a wide gap between two differentially rotating concentric spheres.
E. O. Ifidon
doaj   +2 more sources

Flow equation and fermion gap in the holographic superconductors

open access: yesJournal of High Energy Physics, 2023
We reconsider the fermion spectral function in the presence of the Cooper pair condensation and identified the interaction type of complex scalar and fermion, which gives consistent results with the expected s-wave superconductor for the first time.
Taewon Yuk, Sang-Jin Sin
doaj   +4 more sources

Experimental study of controlling tip clearance flow in a pump-jet propulsor

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveThis paper aims to suppress the adverse effects of tip clearance flow on the hydrodynamic performance and unsteady excitation force of a pump-jet propulsor. MethodAs for the pre-swirl stator pump-jet propulsor, an annular flexible seal structure
Ruilin HAN   +5 more
doaj   +1 more source

A climatology of wintertime low-level jets in Nares Strait

open access: yesPolar Research, 2021
Intense, southward low-level winds are common in Nares Strait, between Ellesmere Island and northern Greenland. The steep topography along Nares Strait leads to channelling effects, resulting in an along-strait flow.
Svenja H.E. Kohnemann   +1 more
doaj   +1 more source

Influences of Gap Flow on Air Resistance Acting on a Large Container Ship

open access: yesJournal of Marine Science and Engineering, 2023
In terms of speed lost and fuel consumed, wind loads are considered one of the main factors for large ship design, especially for container ships. Alongside water resistance, air resistance in strong wind conditions has a significant impact on the fuel ...
Van Trieu Nguyen   +4 more
doaj   +1 more source

Unstable inner cylinder whirl of concentric double rotating cylinder system

open access: yesMechanical Engineering Journal, 2022
This research investigated unstable inner cylinder whirl in a double rotating cylinder system in which the axis of the inner cylinder is supported elastically in the radial direction and the axis of the outer cylinder is fixed.
Fumitaka YOSHIZUMI, Masanori IRITANI
doaj   +1 more source

Hydrodynamic performance of a rim-driven thruster improved with gap geometry adjustment

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
The hubless rim-driven thruster (RDT) has become increasingly interesting for ship propulsion. Gap flow has been proven as the main feature of RDT that cannot be simply neglected.
Jianfeng Lin   +4 more
doaj   +1 more source

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