Results 41 to 50 of about 250 (167)

Projective Solutions Methods Automatically Satisfying the Stokes, Oseen and Brinkman Equations

open access: yesMathematics
The new projective solutions methods (PSMs) for solving the Stokes, Oseen, and Brinkman flow problems are presented in this paper. They automatically satisfy the governing equations and are therefore Trefftz-type methods.
Chein-Shan Liu   +2 more
doaj   +1 more source

Studies on Quasi‐Static and Fatigue Crack Propagation Behaviours in Friction Stir Welded Joints Using Peridynamic Theory

open access: yesAdvances in Materials Science and Engineering, Volume 2019, Issue 1, 2019., 2019
The friction stir welding (FSW) technology has been widely applied in aircraft structures. The heterogeneity of mechanical properties in weld and the hole in structure will lead the crack to turn. Peridynamics (PD) has inherent advantages in calculating crack turning.
Fei Wang   +4 more
wiley   +1 more source

Trefftz- type FEM for solving orthotropic potential problems

open access: yesLatin American Journal of Solids and Structures
A simple Trefftz-type finite element method (TFEM) is proposed for solving certain potential problems in orthotropic media. The "body force", which is induced by internal sources or sinks, may produce domain integrals in the standard Trefftz finite ...
K.Y. Wang, P.C. Li, D.Z. Wang
doaj   +1 more source

A Novel Boundary-Type Meshless Method for Modeling Geofluid Flow in Heterogeneous Geological Media

open access: yesGeofluids, 2018
A novel boundary-type meshless method for modeling geofluid flow in heterogeneous geological media was developed. The numerical solutions of geofluid flow are approximated by a set of particular solutions of the subsurface flow equation which are ...
Jing-En Xiao   +3 more
doaj   +1 more source

Transparent boundary conditions for a discontinuous Galerkin Trefftz method [PDF]

open access: yesApplied Mathematics and Computation, 2015
Revised ...
Herbert Egger   +4 more
openaire   +2 more sources

Trefftz polynomials reciprocity based boundary element formulations for elastodynamics

open access: yesComputer Assisted Methods in Engineering and Science, 2023
In this paper Trefftz polynomials are used for the BEM (Boundary Element Method) based on the reciprocity relations. BEM provides a powerful tool for the calculation of dynamic structural response in the frequency and time domains.
F. Konkol, V. Kompis
doaj  

Application of adjustment calculus in the nodeless Trefftz method for a problem of two-dimensional temperature field of the boiling liquid flowing in a minichannel

open access: yesEPJ Web of Conferences, 2014
The paper presents application of the nodeless Trefftz method to calculate temperature of the heating foil and the insulating glass pane during continuous flow of a refrigerant along a vertical minichannel.
Hożejowska Sylwia   +2 more
doaj   +1 more source

Comparison of the Efficiency of Two Types of Heat Exchangers with Parallel Plates Made of Varied Materials

open access: yesEnergies, 2021
The paper discusses two mathematical models for the air flow through a plate heat exchanger with parallel plates. The first exhausts the used air and then supplies the fresh air.
Krzysztof Grysa   +2 more
doaj   +1 more source

Trefftz spectral method for initial-boundary problems

open access: yesComputer Assisted Methods in Engineering and Science, 2023
We describe a new Quasi Trefftz-type Spectral Method (QTSM) for solving boundary value and initial value problems. QTSM combines the properties of the Trefftz method with the spectral approach.
Sergei Lifits   +2 more
doaj  

Application of Trefftz method for temperature rise analysis on human skin exposed to radiation

open access: yesComputer Assisted Methods in Engineering and Science, 2022
This paper describes the application of the Trefftz method to the temperature rise in human skin exposed to radiation from a cellular phone. A governing equation is given as the Poisson equation.
Eisuke Kita, Yuichi Hirayama
doaj  

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