A new scheme to obtain pollution-free solution for plane waves and to generate a continuous Petrov–Galerkin method for the Helmholtz problem
Sign Up to like & getrecommendations! Published in 2020 at "Computer Methods in Applied Mechanics and Engineering"
DOI: 10.1016/j.cma.2019.112674
Abstract: Abstract In this paper, we propose a new scheme to solve the Helmholtz problem. The proposed scheme has the ability to obtain a pollution-free solution and with good accuracy, when the exact solution is a… read more here.
Keywords: plane waves; helmholtz; obtain pollution; pollution free ... See more keywords
A meshless generalized finite difference method for inverse Cauchy problems associated with three-dimensional inhomogeneous Helmholtz-type equations
Sign Up to like & getrecommendations! Published in 2017 at "Engineering Analysis With Boundary Elements"
DOI: 10.1016/j.enganabound.2017.06.005
Abstract: Abstract The generalized finite difference method (GFDM) is a relatively new domain-type meshless method for the numerical solution of certain boundary value problems. The method involves a coupling between the Taylor series expansions and weighted… read more here.
Keywords: generalized finite; method; type; finite difference ... See more keywords
The use of the conservation of living force before Helmholtz.
Sign Up to like & getrecommendations! Published in 2023 at "Annals of science"
DOI: 10.1080/00033790.2023.2205429
Abstract: In his recent authoritative Helmholtz and the Conservation of Energy, Kenneth Caneva has claimed that earlier authors had invoked the principle of conservation of living force only in cases of a system returning to an… read more here.
Keywords: conservation living; conservation; helmholtz; living force ... See more keywords
Helmholtz in the kitchen: a frying pan as a volume resonator
Sign Up to like & getrecommendations! Published in 2020 at "European Journal of Physics"
DOI: 10.1088/1361-6404/ab6fba
Abstract: Helmholtz resonators are an interesting, widespread phenomenon, which can spark students interest in acoustics, and more generally in applying physics to phenomena of everyday life. Using a smartphone as an experimental tool to measure and… read more here.
Keywords: frying pan; physics; helmholtz kitchen; resonator ... See more keywords
Computation of internal optical forces using the Helmholtz tensor
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DOI: 10.1103/physreva.104.013508
Abstract: The computation of the internal optical force density inside a metamaterial is a controversial subject. Various stress tensors have been proposed; however, each yields a different result. Here, by adopting the Helmholtz stress tensor and… read more here.
Keywords: tensor; internal optical; computation internal; optical forces ... See more keywords
Helmholtz-resonator quartz-enhanced photoacoustic spectroscopy.
Sign Up to like & getrecommendations! Published in 2023 at "Optics letters"
DOI: 10.1364/ol.481457
Abstract: In this work, Helmholtz-resonator quartz-enhanced photoacoustic spectroscopy (HR-QEPAS) was developed for trace gas sensing. A pair of Helmholtz resonators with high-order resonance frequency was designed and coupled with a quartz tuning fork (QTF). Detailed theoretical… read more here.
Keywords: spectroscopy; helmholtz; resonator quartz; quartz enhanced ... See more keywords