Zobrazeno 1 - 10
of 4 342
pro vyhledávání: '"grid method"'
Autor:
Wang Keyan
Publikováno v:
Open Mathematics, Vol 22, Iss 1, Pp 90-116 (2024)
In this article, we present a scheme for solving two-dimensional hyperbolic equation using an expanded mixed finite element method. To solve the resulting nonlinear expanded mixed finite element system more efficiently, we propose a two-step two-grid
Externí odkaz:
https://doaj.org/article/817399042a584660b9076f4185a64a09
Autor:
Xin Chang, Guozhou Qiu, Jing Li, Yintong Guo, Zhiwen Hu, Hanzhi Yang, Xinao Zhang, Yongjiang Liu
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 8, Pp 3227-3242 (2024)
Abstract To study the effect of vertical stress difference coefficient on fracture characteristics of shale fracturing, high stress true triaxial hydraulic fracturing test was carried out. By analyzing the profile after fracturing, it was found that
Externí odkaz:
https://doaj.org/article/e68f792d9935446885ee6ee8a40807ed
Publikováno v:
Machinery & Energetics, Vol 15, Iss 2, Pp 130-144 (2024)
The basis for ensuring the safe operation of hydraulic structures is facility monitoring systems. The introduction of software tools for diagnostic modelling of filtration flows into the software of such systems is an objective step caused by recent
Externí odkaz:
https://doaj.org/article/35e1a0441eba445f97511b332873e930
Autor:
Amir Yaseen Khan, Musawenkhosi Patson Mkhatshwa, Sabyasachi Mondal, Melusi Khumalo, Noor Fadiya Mohd Noor
Publikováno v:
Propulsion and Power Research, Vol 13, Iss 1, Pp 98-117 (2024)
The present study investigates the axisymmetric stagnation point radiative flow of a Cu-Al2O3/water hybrid nanofluid over a radially stretched/shrunk disk. In this paper, a new mathematical model has been developed by taking into consideration the co
Externí odkaz:
https://doaj.org/article/32340444de2c409686e621e9ea8dfac6
Publikováno v:
Вестник Дагестанского государственного технического университета: Технические науки, Vol 50, Iss 4, Pp 184-190 (2024)
Objective. When constructing the resolving relations of the theory of shells, the validity of the basic assumptions about the material of the structure under consideration is assumed, which is considered homogeneous, isotropic and viscoelastic, i.e.
Externí odkaz:
https://doaj.org/article/0620ccfc38c64f558f21c0235d236af3
Autor:
Huiqin Zhang, Yanping Chen
Publikováno v:
AIMS Mathematics, Vol 9, Iss 1, Pp 160-177 (2024)
In this paper, we studied the two-grid method (TGM) for two-dimensional nonlinear time fractional multi-term mixed sub-diffusion and diffusion wave equation. A fully discrete scheme with the quadratic Hermite and Newton interpolation (H2N2) method wa
Externí odkaz:
https://doaj.org/article/375a3d18bd784b748baf9827efeaf267
Autor:
Sotiris Danakas, Samuel Cohen
Publikováno v:
Atoms, Vol 12, Iss 10, p 50 (2024)
The mapped Fourier grid method (mapped-FGM) is a simple and efficient discrete variable representation (DVR) numerical technique for solving atomic radial Schrödinger differential equations. It is set up on equidistant grid points, and the mapping,
Externí odkaz:
https://doaj.org/article/958df274eddf4e33a2723b675f88a4ee
Autor:
Aleksandr A. Belov
Publikováno v:
Discrete and Continuous Models and Applied Computational Science, Vol 31, Iss 2, Pp 120-127 (2023)
The paper describes a grid method for solving an ill-posed problem for the Fredholm equation of the first kind using the A. N. Tikhonov regularizer. The convergence theorem for this method was formulated and proved. A procedure for thickening grids w
Externí odkaz:
https://doaj.org/article/f4f0228a067842a5ae183e9293fc4db9
Publikováno v:
Acta Technologica Agriculturae, Vol 26, Iss 2, Pp 92-98 (2023)
The paper is focused on steel surface processing to ensure an improved adhesion of applied powder layer. Mechanical pre-treatment, chemical pre-treatment and their combination were used to compare their results with each other and to find out the pre
Externí odkaz:
https://doaj.org/article/a72c8d8839dd47d5a2f7481fa8e726a8