Showing items with similar title or keywords.

• Comparison of finite element and discrete exterior calculus in computation of time-harmonic wave propagation with controllability 

  Saksa, Tytti (Elsevier, 2025)

  This paper discusses computation of time-harmonic wave problems using a mixed formulation and the controllability method introduced by Roland Glowinski. As an example, a scattering problem (in an exterior domain) is ...

• Generalized wave propagation problems and discrete exterior calculus 

  Räbinä, Jukka; Kettunen, Lauri; Mönkölä, Sanna; Rossi, Tuomo (EDP Sciences, 2018)

  We introduce a general class of second-order boundary value problems unifying application areas such as acoustics, electromagnetism, elastodynamics, quantum mechanics, and so on, into a single framework. This also enables ...

• Time-harmonic electromagnetics with exact controllability and discrete exterior calculus 

  Mönkölä, Sanna; Räbinä, Jukka; Rossi, Tuomo (Academie des Sciences, 2023)

  In this paper, we apply the exact controllability concept for time-harmonic electromagnetic scattering. The problem is presented in terms of the differential forms, and the discrete exterior calculus is utilized for spatial ...

• Discrete exterior calculus and exact controllability for time-harmonic acoustic wave simulation 

  Myyrä, Mikael (2023)

  Diskreetti ulkoinen laskenta (engl, discrete exterior calculus, DEC) on differentiaaliyhtälöiden ratkaisemiseen soveltuva diskretointimenetelmä, joka säilyttää tiettyjä fysikaalisten mallien geometrisia ominaisuuksia ja ...

• Systematic implementation of higher order Whitney forms in methods based on discrete exterior calculus 

  Lohi, Jonni (Springer, 2022)

  We present a systematic way to implement higher order Whitney forms in numerical methods based on discrete exterior calculus. Given a simplicial mesh, we first refine the mesh into smaller simplices which can be used to ...