International Journal for Computational Civil and Structural Engineering, 2022 In this paper, a mathematical model is considered that allows one to determine the stress-strain state of a spherical shell made of titanium alloy VT1-0, the external load is assumed to be transverse uniformly distributed, acting on the outer surface ...
Aleksander Treshchev +1 more
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An explicit symplectic approach to solving the wave equation in moving media
Engineering Reports, 2023 An explicit approach using symplectic time integration in conjunction with traditional finite difference spatial derivatives to solve the wave equation in moving media is presented.
Venkatesh Inguva +6 more
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A semi-analytic method for solving singularly perturbed twin-layer problems with a turning point
Mathematical Modelling and Analysis, 2023 This computational study investigates a class of singularly perturbed second-order boundary-value problems having dual (twin) boundary layers and simple turning points.
Süleyman Cengizci +2 more
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Fluids, 2021 An Eulerian method to numerically solve incompressible bifluid problems with high density ratio is presented. This method can be considered as an improvement of the Ghost Fluid method, with the specificity of a sharp second-order numerical scheme for the
Michel Bergmann, Lisl Weynans
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Acoustic Forward Model for Guided Wave Propagation and Scattering in a Pipe Bend
Sensors, 2022 The sections of pipe bends are hot spots for wall thinning due to accelerated corrosion by fluid flow. Conventionally, the thickness of a bend wall is evaluated by local point-by-point ultrasonic measurement, which is slow and costly.
Carlos-Omar Rasgado-Moreno +3 more
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Finite differences of the logarithm of the partition function [PDF]
Mathematics of Computation, 2014 Let $p(n)$ denote the partition function. DeSalvo and Pak proved that $\frac{p(n-1)}{p(n)}\left(1+\frac{1}{n}\right)> \frac{p(n)}{p(n+1)}$ for $n\geq 2$, as conjectured by Chen.
William Y. C. Chen +2 more
semanticscholar +1 more source
An ADM 3+1 formulation for Smooth Lattice General Relativity [PDF]
, 1997 A new hybrid scheme for numerical relativity will be presented. The scheme will employ a 3-dimensional spacelike lattice to record the 3-metric while using the standard 3+1 ADM equations to evolve the lattice.
Barret J W +5 more
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Radial basis functions-finite differences collocation and a Unified Formulation for bending, vibration and buckling analysis of laminated plates, according to Murakami's zig-zag theory [PDF]
, 2011 In this paper, we propose to use the Murakami's zig-zag theory for the static and vibration analysis of laminated plates, by local collocation with radial basis functions in a finite differences framework.
A.J.M. Ferreira +45 more
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Calculation of transonic flows around profiles with blunt and angled leading edges
Vietnam Journal of Mechanics, 2016 Transonic flow is a mixed flow of subsonic and supersonic regions. Because of this mixture, the solution of transonic flow problems is obtained only when solving the differential equations of motion with special treatments for the transition from ...
Hoang Thi Bich Ngoc, Nguyen Manh Hung
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Sensitivity Analysis for Transient Thermal Problems Using the Complex-Variable Finite Element Method
Applied Sciences, 2022 Solving transient heat transfer equations is required to understand the evolution of temperature and heat flux. This physics is highly dependent on the materials and environmental conditions. If these factors change with time and temperature, the process
Juan-Sebastian Rincon-Tabares +5 more
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