LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "helmholtz" as a keyword



Helmholtz-x : Parallelized adjoint open source solver for the thermoacoustic Helmholtz equation

Sign Up to like & get
recommendations! Published in 2025 at "Engineering with Computers"

DOI: 10.1007/s00366-025-02107-1

Abstract: We create and describe an inhomogeneous Helmholtz equation solver, helmholtz-x, written in an open-source framework. The mesh is generated with Gmsh and the solver uses DOLFINx and UFL from FEniCSx. The performance, validity, stability and… read more here.

Keywords: open source; solver; helmholtz; helmholtz equation ... See more keywords

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 & get
recommendations! 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 & get
recommendations! 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 & get
recommendations! 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

A parallel high-order accuracy algorithm for the Helmholtz equations

Sign Up to like & get
recommendations! Published in 2024 at "International Journal of Computer Mathematics"

DOI: 10.1080/00207160.2024.2305143

Abstract: The numerical solution of the Helmholtz equations is challenging to compute when the wave numbers contained in the governing equation are large. In this paper, we present a parallel algorithm for this problem. A class… read more here.

Keywords: helmholtz; parallel high; algorithm; helmholtz equations ... See more keywords
Photo from academic.microsoft.com

Helmholtz in the kitchen: a frying pan as a volume resonator

Sign Up to like & get
recommendations! 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

Sign Up to like & get
recommendations! Published in 2021 at "Physical Review A"

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 & get
recommendations! 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