Results 11 to 20 of about 1,311,010 (300)

Wedge Geometry for Ultrasonic Delay Lines [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1954
Compact ultrasonic delay lines using vitreous silica plates cut in the form of a wedge are described. Shear waves at frequencies in the 10–50 mc/sec range are reflected back and forth between the wedge surfaces, with resulting open beam paths at the sending and receiving transducers, and gradually overlapping paths at the small end of the wedge.
H. J. Mcskimin
semanticscholar   +2 more sources

NON-TRADITIONAL GEOMETRY FOR WEDGE-SPLITTING TEST

open access: green, 2021
The wedge-splitting test is widely used in the testing of fracture mechanical parameters of concrete or concrete-like materials. This test provides a stable crack propagation, which was analysed on a cube specimen. Another interesting application for measuring fracture mechanical properties combines wedge-splitting test with a three-point bending test.
Petr Miarka   +2 more
openalex   +4 more sources

Numerical simulation of heat transport mechanism in chemically influenced ternary hybrid nanofluid flow over a wedge geometry [PDF]

open access: diamondDiscover Applied Sciences
Ternary hybrid nanofluid flow over a wedge surface facilitates optimization, promotes industrial processes such as heat transfer, temperature regulation, material compatibility, energy efficiency and is very useful in equipment design.
Hakim AL Garalleh
openalex   +2 more sources

Statics and dynamics of liquid barrels in wedge geometries [PDF]

open access: greenJournal of Fluid Mechanics, 2018
We present a theoretical study of the statics and dynamics of a partially wetting liquid droplet, of equilibrium contact angle $\unicode[STIX]{x1D703}_{e}$, confined in a solid wedge geometry of opening angle $\unicode[STIX]{x1D6FD}$. We focus on a mostly non-wetting regime, given by the condition $\unicode[STIX]{x1D703}_{e}-\unicode[STIX]{x1D6FD}> ...
Élfego Ruiz-Gutiérrez   +3 more
openalex   +4 more sources

Straight wedge absorber geometry optimization for normal and oblique incidence [PDF]

open access: green2014 Loughborough Antennas and Propagation Conference (LAPC), 2014
—This paper presents a topology for improving the performance of straight wedge absorbing materials at oblique angles of incidence. The optimization process is based on a genetic algorithm and allows one to obtain a low reflection coefficient within a wide band of frequencies.
Laura Pometcu   +3 more
openalex   +3 more sources

Image method solutions for free-particle wave packets in wedge geometries [PDF]

open access: greenEuropean Journal of Physics, 2006
Using analogues of familiar image methods in electrostatics and optics, we show how to construct closed-form wave packet solutions of the two-dimensional free-particle Schrodinger equation in geometries restricted by two infinite wall barriers separated by an angle ΘN = π/N.
R. W. Robinett
openalex   +3 more sources

The Sensitivity of Salt Wedge Estuaries to Channel Geometry

open access: yesJournal of Physical Oceanography, 2015
AbstractThe authors develop a two-layer hydraulic model to determine the saline intrusion length in sloped and converging salt wedge estuaries. They find that the nondimensional intrusion length = CiL/hS depends significantly on the channel bottom slope and the rate and magnitude of landward width convergence, in addition to the freshwater Froude ...
A. Poggioli, A. Horner‐Devine
semanticscholar   +2 more sources

Role of corner flow separation in unsteady dynamics of hypersonic flow over a double wedge geometry [PDF]

open access: yesThe Physics of Fluids, 2021
This study investigates the origin and sustenance of self-induced oscillations of shock structures in a hypersonic flow over a double wedge configuration.
G. Kumar, A. De
semanticscholar   +1 more source

Effects of Non-Linear Thermal Radiation and Chemical Reaction ‎on Time Dependent Flow of Williamson Nanofluid With Combine ‎Electrical MHD and Activation Energy [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
The current article will present the impact of the heat and mass transfer of combine electrical MHD flow of time dependent Williamson fluid with nanoparticles by the incorporating the influences of non-linear thermal radiation and the chemical reaction ...
Gulzar Ahmad Danish   +6 more
doaj   +1 more source

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