Results 21 to 30 of about 230,861 (348)

Antennas on circular cylinders [PDF]

open access: yesIRE Transactions on Antennas and Propagation, 1959
On the basis of the results obtained by Silver and Saunders [4] for the field radiated from an arbitrary slot in a perfectly conducting circular cylinder, expressions have been derived for the field radiated by a narrow helical slot, with an arbitrary aperture field distribution, in a circular cylinder.
openaire   +1 more source

Vortex flow around a pair of in-line forced oscillating tandem arranged circular cylinder

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this study, the flow features of vortex shedding from a pair of tandem arranged circular cylinders oscillating along the direction of the flow were observed by visualizing water flow experiment at the ranges of the frequency ratio f/fK=0~6.2 (28 steps)
Yoshifumi YOKOI
doaj   +1 more source

Resonance Scattering by a Circular Dielectric Cylinder [PDF]

open access: yesRadio Science, 2021
AbstractA unified approach is developed for the analysis of singularities of the scattered field and vanishing of scattering harmonics. Rigorous proofs are presented of the existence of complex resonance singularities of the solution to the problem of the plane wave scattering by a circular homogeneous dielectric cylinder.
openaire   +3 more sources

The Investigation of Mutual Interference Vortex Flow around Two Circular Cylinders by Flow Visualization and Pressure Measurement [PDF]

open access: yesMATEC Web of Conferences, 2019
In order to understand the aspect of the mutual interference flow from two circular cylinders, the visual observation experiment and the pressure measurement experiment were performed by use a water flow apparatus.
Yokoi Yoshifumi, Vitkovičová Rut
doaj   +1 more source

Numerical Modeling and Simulation of Wave Impact of a Circular Cylinder during the Submergence Process

open access: yesModelling and Simulation in Engineering, 2017
Wave slamming loads on a circular cylinder during water entry and the subsequence submergence process are predicted based on a numerical wave load model.
Xiaozhou Hu, Yiyao Jiang, Daojun Cai
doaj   +1 more source

Numerical Computation of Low Reynolds Number Viscous Flow Past Bluff Bodies

open access: yesInternational Journal of Applied Mechanics and Engineering, 2020
This article presents a two-dimensional steady viscous flow simulation past circular and square cylinders at low Reynolds numbers (based on the diameter) by the finite volume method with a non-orthogonal body-fitted grid. Diffusive fluxes are discretized
Md. Shahjada Tarafder, Miad Al Mursaline
doaj   +1 more source

Analytical calculation of the solid angle defined by a cylindrical detector and a point cosine source with orthogonal axes

open access: yes, 2003
We derive analytical expressions for the solid angle subtended by a right circular cylinder at a point source with cosine angular distribution in the case where the source and the cylinder axes are mutually orthogonal.Comment: 19 pages, 13 figures, Latex.
Gardner   +10 more
core   +2 more sources

Reducing Drag of Body by Adding a Plate

open access: yesMATEC Web of Conferences, 2018
This paper focuses on theoretical investigations of the location of a separation point laminar boundary layer on the surface of a circular cylinder. The investigations were carried out by CFD software FlowSimulation.
Vladimir A. Frolov, Anna S. Kozlova
doaj   +1 more source

Surface-wave damping in a brimful circular cylinder [PDF]

open access: yes, 1998
The natural frequencies and damping rates of surface waves in a circular cylinder with pinned-end boundary conditions are calculated in terms of the gravitational Reynolds and Bond numbers, C[minus sign]1 and B, and the slenderness of the cylinder ...
Martel, Carlos, Nicolás, José A.
core   +2 more sources

Interaction of a Solitary Wave with Vertical Fully/Partially Submerged Circular Cylinders with/without a Hollow Zone

open access: yesJournal of Marine Science and Engineering, 2020
In this article, a three-dimensional, fully nonlinear potential wave model is applied based on a curvilinear grid system. This model calculates the wave action on a fully/partially submerged vertical cylinder with or without a hollow zone.
Chih-Hua Chang
doaj   +1 more source

Home - About - Disclaimer - Privacy