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Journal of Applied Mathematics and Computational Mechanics最新文献

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Temperature effect on frequencies of a tapered triangular plate 温度对锥形三角板频率的影响
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.04
Akash Khodiya, Amit Sharma
{"title":"Temperature effect on frequencies of a tapered triangular plate","authors":"Akash Khodiya, Amit Sharma","doi":"10.17512/JAMCM.2021.1.04","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.04","url":null,"abstract":"","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47085872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Investigation of the influence of liquid phase motion on the solidification process in the three-dimensional region 液相运动对三维凝固过程影响的研究
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.10
E. Wegrzyn-Skrzypczak
{"title":"Investigation of the influence of liquid phase motion on the solidification process in the three-dimensional region","authors":"E. Wegrzyn-Skrzypczak","doi":"10.17512/JAMCM.2021.1.10","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.10","url":null,"abstract":"","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47979225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uniformly convergent higher-order finite difference scheme for singularly perturbed parabolic problems with non-smooth data 具有非光滑数据的奇摄动抛物型问题的一致收敛高阶有限差分格式
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.01
T. A. Bullo, G. Degla, G. Duressa
{"title":"Uniformly convergent higher-order finite difference scheme for singularly perturbed parabolic problems with non-smooth data","authors":"T. A. Bullo, G. Degla, G. Duressa","doi":"10.17512/JAMCM.2021.1.01","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.01","url":null,"abstract":"","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42137723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Application of computational mechanics approaches for increasing of tribosystem operational parameters by using plasma hardening method 计算力学方法在等离子体硬化法提高摩擦系统工作参数中的应用
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.06
V. Kopylov, O. Kuzin, N. Kuzin
{"title":"Application of computational mechanics approaches for increasing of tribosystem operational parameters by using plasma hardening method","authors":"V. Kopylov, O. Kuzin, N. Kuzin","doi":"10.17512/JAMCM.2021.1.06","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.06","url":null,"abstract":"","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44890399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of polynomial tensor interpolation for technical tests 多项式张量插值在技术试验中的应用
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.02
Anita Ciekot, G. Biernat, T. Fraczek
{"title":"Application of polynomial tensor interpolation for technical tests","authors":"Anita Ciekot, G. Biernat, T. Fraczek","doi":"10.17512/JAMCM.2021.1.02","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.02","url":null,"abstract":"The main aim of this paper is a new formula of tensor interpolation by the polynomial of two variables. The formulas for interpolating polynomial coefficients are obtained using the Kronecker tensor product of matrices. The mathematical model for the diffusion process is presented. This paper is focused on determining the optimal parameters for this process by polynomial tensor interpolation of the obtained research results. MSC 2010: 65D05, 41A05, 15A69","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46012465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mixed convective flow with variable viscosity and variable thermal conductivity in a channel in the presence of first order chemical reaction with heat generation or absorption 在有产热或吸热的一级化学反应的通道中，变黏度和变导热系数的混合对流
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.09
C. ShobhaK, Mahadevi Biradar, B. PatilMallikarjun
{"title":"Mixed convective flow with variable viscosity and variable thermal conductivity in a channel in the presence of first order chemical reaction with heat generation or absorption","authors":"C. ShobhaK, Mahadevi Biradar, B. PatilMallikarjun","doi":"10.17512/JAMCM.2021.1.09","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.09","url":null,"abstract":"A study has been made on the flow and heat transfer of a viscous fluid in a vertical channel with first order chemical reaction and heat generation or absorption assuming that the viscosity and thermal conductivity are dependent on the fluid temperature. The temperature of the walls is maintained constant. Under these assumptions, the governing balance equations of mass, momentum and energy are formulated. The dimensionless forms of the governing equations are coupled and non-linear, which cannot be solved analytically and therefore require the use of the Runge-Kutta fourth order along with shooting technique. Graphs for velocity and temperature under different values of parameters involved are plotted and discussed. The skin friction and Nusselt number on the channel walls are also computed and discussed. Furthermore, the investigation found that variable viscosity and variable thermal conductivity enhance the velocity and temperature of the flow. MSC 2010: 34B08, 65L06, 76D05","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46206459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Three dimensional MHD Casson fluid flow over a stretching surface with variable thermal conductivity 具有可变导热系数的拉伸表面上的三维MHD-Casson流体流动
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.03
B. Ganga, S. Charles, A. Hakeem, S Nadeem
{"title":"Three dimensional MHD Casson fluid flow over a stretching surface with variable thermal conductivity","authors":"B. Ganga, S. Charles, A. Hakeem, S Nadeem","doi":"10.17512/JAMCM.2021.1.03","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.03","url":null,"abstract":". The three-dimensional magnetohydrodynamic (MHD) boundary layer flow of a Casson fluid over a stretching surface set into a porous medium with variable thermal conductivity and heat generation/absorption has been researched. Conservation laws of mass, momentum and energy are changed into ordinary differential equations, which are numerically dealt with by applying the fourth order Runge-Kutta integration scheme in relationship with shooting procedure. The dimensionless velocity, temperature, skin friction coefficient and the local Nusselt number inside the boundary layer are processed and examined through tables and illustrations for various physical parameters. The numerical outcomes obtained for the specific case are sensible in great concurrence with the existing results. Results indicate that momentum boundary layer reduces for the Hartman number and Casson fluid parameter. Temperature is found as an enlightened function for the heat generation and thermal conductivity parameter.","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41531695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Numerical simulation of a temperature field during multi-beads surface welding 多焊道表面焊接温度场的数值模拟
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.05
R. Koňar, M. Mičian, M. Málek, Jozef Šutka, M. Gucwa, J. Winczek
{"title":"Numerical simulation of a temperature field during multi-beads surface welding","authors":"R. Koňar, M. Mičian, M. Málek, Jozef Šutka, M. Gucwa, J. Winczek","doi":"10.17512/JAMCM.2021.1.05","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.05","url":null,"abstract":"","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47499153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Homotopy perturbation Shehu transform method for solving fractional models arising in applied sciences 应用科学中分数模型求解的同调摄动Shehu变换方法
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-03-01 DOI: 10.17512/JAMCM.2021.1.07
Shehu Maitama, Weidong Zhao
{"title":"Homotopy perturbation Shehu transform method for solving fractional models arising in applied sciences","authors":"Shehu Maitama, Weidong Zhao","doi":"10.17512/JAMCM.2021.1.07","DOIUrl":"https://doi.org/10.17512/JAMCM.2021.1.07","url":null,"abstract":". Using the recently proposed homotopy perturbation Shehu transform method (HPSTM), we successfully construct reliable solutions of some important fractional models arising in applied physical sciences. The nonlinear terms are decomposed using He’s polynomials, and the fractional derivative is calculated in the Caputo sense. Using the analytical method, we obtained the exact solution of the fractional diffusion equation, fractional wave equation and the nonlinear fractional gas dynamic equation.","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45356881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Means in money exchange operations 指的是货币兑换业务
IF 1
Journal of Applied Mathematics and Computational Mechanics Pub Date : 2021-01-18 DOI: 10.17512/jamcm.2023.1.01
J. Bojarski, J. Matkowski
{"title":"Means in money exchange operations","authors":"J. Bojarski, J. Matkowski","doi":"10.17512/jamcm.2023.1.01","DOIUrl":"https://doi.org/10.17512/jamcm.2023.1.01","url":null,"abstract":"It is observed that in some money exchange operations, the applied $n$ -variable mean $M$ should be self reciprocally-conjugate, i.e. it should satisfy the equality [ Mleft( x_{1},ldots,x_{n}right) Mleft( frac{1}{x_{1}},ldots,frac{1}{x_{n}} right) =1,quad x_{1},ldots,x_{n}>0. ] The main result says that the only weighted quasiarithmetic mean satisfying this condition is the weighet geometric mean.","PeriodicalId":43867,"journal":{"name":"Journal of Applied Mathematics and Computational Mechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42041258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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