Results 11 to 20 of about 198 (145)
Determination of the temperature distribution in a minichannel using ANSYS CFX and a procedure based on the Trefftz functions [PDF]
EPJ Web of Conferences, 2017 This work discusses the mathematical model for laminar-flow heat transfer in a minichannel. The boundary conditions in the form of temperature distributions on the outer sides of the channel walls were determined from experimental data.
Maciejewska Beata +2 more
doaj +2 more sources
FEM method with the use of Trefftz functions for determination of heat transfer coefficient in a minichannel [PDF]
EPJ Web of Conferences, 2012 The paper presents the FEM method for determination of boiling heat transfer coefficient in cooling liquid flow in a rectangular minichannel with asymmetric heating.
Maciejewska Beata, Piasecka Magdalena
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Bioactive Ion-Confined Ultracapacitive Memristors with Neuromorphic Functions. [PDF]
Angew Chem Int Ed EnglPronounced physisorption of bioactive cations with a hydrophobic alkyl chain by porous carbons with a negative zeta potential results in confined cations, which triggers anion enrichment and depletion under electric polarization and enables rapid differential ionic memresistance behavior for cations with strong and weak interactions with porous carbons.
Li P +6 more
europepmc +3 more sources
The use of Trefftz functions for approximation of measurement data in an inverse problem of flow boiling in a minichannel [PDF]
EPJ Web of Conferences, 2012 The paper is devoted to a computational problem of predicting a local heat transfer coefficient from experimental temperature data. The experimental part refers to boiling flow of a refrigerant in a minichannel.
Hozejowski Leszek, Hozejowska Sylwia
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The flow boiling heat transfer coefficient determination in a minichannel used the FEM combined with Trefftz functions [PDF]
MATEC Web of Conferences, 2018 The method of solving the inverse heat conduction problem, by means of the FEM with Trefftz-type basis functions, during flow boiling in a minichannel was shown.
Piasecka Magdalena +2 more
doaj +2 more sources
The solution of the two-dimensional inverse heat transfer problem with the use of the FEM in combination with Trefftz functions [PDF]
EPJ Web of Conferences, 2012 The aim of this paper is to determine the boiling heat transfer coefficient for the cooling liquid flow in a rectangular minichannel with asymmetric heating. The main part of the test section is made up of a vertical minichannel of 1.0 mm depth.
Maciejewska Beata, Piasecka Magdalena
doaj +2 more sources
Nobody likes to sleep alone: aspiring to kinship futures in post‐Soviet Cuba
Journal of the Royal Anthropological Institute, Volume 29, Issue 4, Page 745-762, December 2023., 2023 Abstract In post‐Soviet Cuba, instead of the political future envisioned by Revolutionary authorities, poor residents of Havana aspire to create kinship futures where there is no need to ‘sleep alone’. Here, the idea of ‘sleeping together’ represents a trustworthy social bond that shelters a person from loneliness over time. For these habaneros, sexual
Heidi Härkönen
wiley +1 more source
Trefftz Displacement Potential Function Method for Solving Elastic Half-Space Problems [PDF]
Civil Engineering and Architecture, 2021 The elastic half-space problem has been solved previously using Boussinesq, Papkovich, Love, and Green and Zerna, potential function methods. In this work, the Trefftz displacement potential function method is used to obtain the stress and displacement fields in an elastic half-space subjected to boundary loads. Point load and various distributed loads
Charles Chinwuba Ike +3 more
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International Journal for Numerical Methods in Engineering, Volume 124, Issue 17, Page 3603-3636, 15 September 2023., 2023 Summary A general technique to develop arbitrary‐sided polygonal elements based on the scaled boundary finite element method is presented. Shape functions are derived from the solution of the Poisson's equation in contrast to the well‐known Laplace shape functions that are only linearly complete.
B Xiao +5 more
wiley +1 more source
A mixed finite element formulation for elastoplasticity
International Journal for Numerical Methods in Engineering, Volume 123, Issue 21, Page 5346-5368, 15 November 2022., 2022 Abstract The present article, provides a novel mixed finite element formulation for elastoplasticity which is suitable for the discretization of thin‐walled structures using highly anisotropic volume elements. We present a thermodynamically consistent framework for the modeling of elastoplastic stress response, where dissipative effects are considered ...
Michaela Nagler +2 more
wiley +1 more source