Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Ahmad Shirzadi"'
Publikováno v:
هوش محاسباتی در مهندسی برق, Vol 14, Iss 1, Pp 17-30 (2023)
In this paper, the Hunger Games Search (HGS) optimization algorithm is used to estimate the electrical parameters of the induction machine steady state model. Induction machine nameplate data is used as input to the proposed algorithm. The performanc
Externí odkaz:
https://doaj.org/article/548f5706d8e2470fa389594978669890
Publikováno v:
هوش محاسباتی در مهندسی برق, Vol 13, Iss 4, Pp 79-96 (2022)
In this paper, to estimate the parameters of a three-phase induction motor, the current measured in one phase and Harris Hawk’s optimization algorithm (HHO) as well as the recently introduced improved technique of this algorithm (IHHO) are used. Th
Externí odkaz:
https://doaj.org/article/9a015ab0b6a44f3fbb7aec0813d43c74
Autor:
Fariba Takhtabnoos, Ahmad Shirzadi
Publikováno v:
پژوهشهای ریاضی, Vol 4, Iss 2, Pp 153-172 (2018)
This paper deals with the numerical solutions of the 2D time dependent Schr¨odinger equations by using a local strong form meshless method. The time variable is discretized by a finite difference scheme. Then, in the resultant elliptic type PDEs, sp
Externí odkaz:
https://doaj.org/article/7f8f8d5e070648b9b3dcffbf1ce9eec1
Autor:
Mohammad Mohammadi, Ahmad Shirzadi
Publikováno v:
Computational Mathematics and Modeling. 33:375-387
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::700364e14fb0306c5083f24adaa2663e
https://doi.org/10.1007/s10598-023-09579-0
https://doi.org/10.1007/s10598-023-09579-0
Autor:
Ahmad Shirzadi, Mansour Safarpoor
Publikováno v:
Engineering with Computers. 37:909-920
A meshless method is presented to numerically study an interface problem between a flow in a porous medium governed by Darcy equations and a fluid flow, governed by Stokes equations. In fact, the domain of the problem has two parts, one governed by S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59ea42bb70294a4227653a85864b83b9
https://doi.org/10.1007/s00366-019-00863-5
https://doi.org/10.1007/s00366-019-00863-5
Publikováno v:
Engineering with Computers. 36:171-183
The existing local RBF methods use the strong form equation and approximate the solution in local subdomains instead of the whole domain. In the RBF-MLPG method, the unknown solution is approximated by RBFs in the whole domain and testing is done by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4991fd8ed482d259740c976ea7965dec
https://doi.org/10.1007/s00366-018-00692-y
https://doi.org/10.1007/s00366-018-00692-y
A localized RBF-MLPG method for numerical study of heat and mass transfer equations in elliptic fins
Autor:
Mansour Safarpoor, Ahmad Shirzadi
Publikováno v:
Engineering Analysis with Boundary Elements. 98:35-45
The aim of this paper is to propose a local meshless method for the numerical solutions of heat and mass transfer equations in elliptic fins. The domain and boundary are discretized with arbitrary positioned nodes. Then, around each node a small numb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec7b461c2d1f3bba8959eda8d99734e
https://doi.org/10.1016/j.enganabound.2018.09.016
https://doi.org/10.1016/j.enganabound.2018.09.016
Autor:
Ahmad Shirzadi, Fariba Takhtabnoos
Publikováno v:
Inverse Problems in Science and Engineering. 26:1676-1694
In this paper, we consider coefficient inverse problems, which are associated with the identification of unknown time dependent control parameter and unknown solution of two-dimensional parabolic i...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::254e6467386170b909626306660ce0d1
https://doi.org/10.1080/17415977.2018.1428967
https://doi.org/10.1080/17415977.2018.1428967
Autor:
Fariba Takhtabnoos, Ahmad Shirzadi
Publikováno v:
Engineering Analysis with Boundary Elements. 83:67-73
A local meshless method based on the finite collocation, local radial basis function (RBF) and MLPG method is proposed for solving the 2D Delay partial differential equations. In fact, instead of collocation of governing equations in the finite collo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c551be825edfa30718a69dcfcb036634
https://doi.org/10.1016/j.enganabound.2017.07.019
https://doi.org/10.1016/j.enganabound.2017.07.019
Autor:
Fariba Takhtabnoos, Ahmad Shirzadi
Publikováno v:
Engineering Analysis with Boundary Elements. 63:114-124
This paper is concerned with a new implementation of a variant of the finite collocation (FC) method for solving the 2D time dependent partial differential equations (PDEs) of parabolic type. The time variable is eliminated by using an appropriate fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b52ec9e6f1c1c4a6d341b13aad285798
https://doi.org/10.1016/j.enganabound.2015.11.007
https://doi.org/10.1016/j.enganabound.2015.11.007