Results 1 to 10 of about 22,658 (137)

Nystrom technique analysis of the terahertz and infrared range radar cross section of a circular dielectric cylinder with graphene strips inside. [PDF]

Philos Trans A Math Phys Eng Sci
Kaliberda ME, Pogarsky S.
europepmc   +2 more sources

On 3D structure of a circular cylinder wake [PDF]

EPJ Web of Conferences, 2022
The 3D structure of the wake behind a circular cylinder in a cross-flow is studied experimentally using stereo PIV technique, Reynolds number was around 5 thousands.
Uruba Václav, Procházka Pavel, Skála Vladislav   +2 more
doaj   +1 more source

Dynamics of the Tip Vortices in the Wake Behind a Circular Cylinder of Finite Length [PDF]

MATEC Web of Conferences, 2020
The dynamics of the tip vortices in the wake behind a wall-mounted finite-length circular cylinder of the aspect ratio 2 was studied experimentally using time resolved stereo PIV technique.
Uruba Václav, Procházka Pavel
doaj   +1 more source

Relaxation of residual stresses in a surface-hardened rotating cylinder under creep conditions [PDF]

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022
A technique for calculating the relaxation of residual stresses in a cantilevered rotating cylinder after the procedure of surface plastic deformation under creep conditions has been developed, taking into account the effect of a stepwise change in the ...
Vladimir P. Radchenko, Aleksandr E. Liberman, Oleg L. Blokhin   +2 more
doaj   +1 more source

Mitigation of Vortex-Induced Vibration of Cylinders Using Cactus-Shaped Cross Sections in Subcritical Flow

Journal of Marine Science and Engineering, 2021
Flexible cylinders, such as marine risers, often experience sustained vortex-induced vibrations (VIVs). Installing helical strakes on a riser is the most widely used technique to mitigate VIVs. This study was inspired by the giant Saguaro Cacti which can
Jialu Wang, Fabo Chen, Chen Shi, Jiuzheng Yu   +3 more
doaj   +1 more source

Experimental study of cactus-like body shape on flow-induced vibration mitigation of clustered cylinders

International Journal of Naval Architecture and Ocean Engineering, 2021
Vortex-Induced Vibration (VIV) is a major contributor to the fatigue damage of marine risers which are often arranged in an array configuration. In addition to helical strakes and fairings, studies have been strived in searching for possible VIV ...
Chen Shi, Yang Liu, Jialu Wang, Fabo Chen, Zhihui Liu, Xingxian Bao   +5 more
doaj   +1 more source

The Sonic Resonance Method and the Impulse Excitation Technique: A Comparison Study

Applied Sciences, 2021
In this study, resonant frequencies of flexurally vibrating samples were measured using the sonic resonant method (SRM) and the impulse excitation technique (IET) to assess the equivalency of these two methods.
Tomáš Húlan, Filip Obert, Ján Ondruška, Igor Štubňa, Anton Trník   +4 more
doaj   +1 more source

Effects of periodic suction-blowing excitation on the aerodynamic sound generated by a laminar flow past a square cylinder using the direct numerical simulation approach

AIP Advances, 2022
This paper analyzes the effects of a periodic suction-blowing excitation on the aerodynamic sound generated by a laminar flow past a square cylinder using the direct numerical simulation approach.
Shashi Kumar, Naveen Ganta, Yogesh G. Bhumkar   +2 more
doaj   +1 more source

A Deep-Learning Model for Underwater Position Sensing of a Wake’s Source Using Artificial Seal Whiskers

Sensors, 2020
Various marine animals possess the ability to track their preys and navigate dark aquatic environments using hydrodynamic sensing of the surrounding flow.
Mohamed Elshalakani, Muthukumar Muthuramalingam, Christoph Bruecker   +2 more
doaj   +1 more source

The short term visual, refractive and Topographic outcome of Corneal Collagen Crosslinking in Keratoconus

Asian Journal of Medical Sciences, 2021
Background: Keratoconus is a condition characterized by biomechanical instability of cornea presenting in a progressive asymmetry and bilateral way. Corneal collagen cross-linking with riboflavin and UVA is a technique that has influenced the treatment ...
Renuga Devi Kaliaperumal , Amudha Purushothaman , Thiruvengada Krishnan , Shivananda   +3 more
doaj   +1 more source