发布求助
文献互助 智能选刊 最新文献

Mathematical Models and Computer Simulations最新文献

筛选
英文 中文
Application of Hybrid RANS/LES Methods for the Simulation of Shock-Induced Turbulent Boundary Layer Separation 应用 RANS/LES 混合方法模拟冲击诱发的湍流边界层分离
Mathematical Models and Computer Simulations Pub Date : 2024-04-22 DOI: 10.1134/s2070048224010113
A. I. Troshin, S. V. Bakhne
{"title":"Application of Hybrid RANS/LES Methods for the Simulation of Shock-Induced Turbulent Boundary Layer Separation","authors":"A. I. Troshin, S. V. Bakhne","doi":"10.1134/s2070048224010113","DOIUrl":"https://doi.org/10.1134/s2070048224010113","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of shock-induced turbulent boundary layer separation simulations using scale-resolving methods with wall modelling (WMLES) are presented. A test case is chosen for which experimental data and reference large eddy simulation results are available. The IDDES method based on the SST turbulence model in the WMLES mode is compared with a similar method in which the explicit subgrid scale model is turned off. In the second approach, two schemes of the WENO family are considered. In each case, two grids of different densities are employed. The separation size, pressure, and friction coefficient distributions along the wall, and one-point pressure probability density functions at two reference points are compared. An unexpected result is demonstrated: in all the eddy-resolving simulations, the separation region’s length turns out to be underestimated by 15–28%, and no significant reduction in the error with grid refinement is observed. Possible reasons for this phenomenon are discussed.</p>","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140801052","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 the Harmonic Balance Method to Calculate the First Booster Stage Tonal Noise 应用谐波平衡法计算第一增压器级音调噪声
Mathematical Models and Computer Simulations Pub Date : 2024-04-22 DOI: 10.1134/s2070048224010083
A. A. Rossikhin, V. I. Mileshin
{"title":"Application of the Harmonic Balance Method to Calculate the First Booster Stage Tonal Noise","authors":"A. A. Rossikhin, V. I. Mileshin","doi":"10.1134/s2070048224010083","DOIUrl":"https://doi.org/10.1134/s2070048224010083","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results of the numerical investigation of the tone noise of the first booster stage of a high bypass ratio turbofan in the far field in the approach (landing) operational conditions are presented. The study is performed using the frequency domain numerical method of multistage turbomachines tonal noise simulation, developed at the Baranov Central Institute of Aviation Motors (CIAM). A variant of the method suitable for the calculations in a nonlinear setup is used. The calculation is performed for several blade passages in each row. The harmonic balance method for multitonal disturbances with a frequency mapping is implemented. The results of the calculations are compared with the results of the calculations in the time domain, presented in the previous paper (they were also performed in a nonlinear setup) and with the experimental data obtained at the CIAM acoustic test facility. In general, satisfactory correspondence is found between the data in both cases. The results can be treated as an argument for the validity of the proposed nonlinear frequency domain method of the multistage turbomachinery tone noise calculations.</p>","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"85 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140801068","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
Computation of the Evolution of Tollmien–Schlichting Waves Based on Global Stability Analysis 基于全局稳定性分析的 Tollmien-Schlichting 波演变计算
Mathematical Models and Computer Simulations Pub Date : 2024-04-22 DOI: 10.1134/s2070048224010034
K. V. Belyaev, A. V. Garbaruk, V. D. Golubkov, M. Kh. Strelets
{"title":"Computation of the Evolution of Tollmien–Schlichting Waves Based on Global Stability Analysis","authors":"K. V. Belyaev, A. V. Garbaruk, V. D. Golubkov, M. Kh. Strelets","doi":"10.1134/s2070048224010034","DOIUrl":"https://doi.org/10.1134/s2070048224010034","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A computational methodology is presented for calculating the spatial evolution of Tollmien–Schlichting (T–S) waves and their amplitude growth-rate factor in substantially nonparallel compressible flows, based on a global stability analysis of stationary solutions of the full Navier–Stokes (N–S) equations. Three stages of this methodology (obtaining a stationary solution, as well as carrying out a global stability analysis and its postprocessing) are described, and the results are presented of its validation based on the comparison of the results of calculating the characteristics of T–S waves on a flat plate with the corresponding results of the classical stability theory in the parallel approximation. An example of calculating the flow around a plate with a rectangular cavity is presented to illustrate the possibility of applying the proposed methodology to nonparallel flows.</p>","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140806180","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
Numerical Simulation of the Evolution of a Curved Turbulent Wake Subjected to an Adverse Pressure Gradient 受逆向压力梯度影响的弯曲湍流尾流演变的数值模拟
Mathematical Models and Computer Simulations Pub Date : 2024-04-22 DOI: 10.1134/s2070048224010101
A. S. Stabnikov, M. Kh. Strelets, A. K. Travin, M. L. Shur
{"title":"Numerical Simulation of the Evolution of a Curved Turbulent Wake Subjected to an Adverse Pressure Gradient","authors":"A. S. Stabnikov, M. Kh. Strelets, A. K. Travin, M. L. Shur","doi":"10.1134/s2070048224010101","DOIUrl":"https://doi.org/10.1134/s2070048224010101","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The results are presented of the numerical experiments aimed at obtaining detailed and reliable data on the mean and turbulent characteristics of the asymmetric curved turbulent wake behind a flat plate (FP) subjected to an adverse pressure gradient (APG). The computations are performed for the model wake configuration designed earlier by the authors with the use of the scale-resolving zonal Reynolds-averaged Navier–Stokes-improved delayed detached-eddy simulation (RANS-IDDES) approach to represent turbulence. The reliability of the obtained results is confirmed by the grid independence of the obtained solutions, and a comparison of these results with the corresponding results of computations performed with the use of various semiempirical RANS models indicates the insufficient accuracy of the latter and the need for their further improvement.</p>","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140800941","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
Pursuit Problem with an Arbitrary Initial Aiming Angle 具有任意初始瞄准角的追逐问题
Mathematical Models and Computer Simulations Pub Date : 2024-04-01 DOI: 10.1134/s2070048224020078
V. Y. Bodryakov
{"title":"Pursuit Problem with an Arbitrary Initial Aiming Angle","authors":"V. Y. Bodryakov","doi":"10.1134/s2070048224020078","DOIUrl":"https://doi.org/10.1134/s2070048224020078","url":null,"abstract":"","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"205 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140775953","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
Simulation of Propagation of Video Pulse Signals of GPR in the Earth’s Lithosphere 模拟 GPR 视频脉冲信号在地球岩石圈中的传播
Mathematical Models and Computer Simulations Pub Date : 2024-04-01 DOI: 10.1134/s2070048224020182
Z. Suvorova, I. Mingalev, O. Mingalev, O. I. Ahmetov, L. B. Volkomirskaya, O. A. Gulevich, A. Reznikov
{"title":"Simulation of Propagation of Video Pulse Signals of GPR in the Earth’s Lithosphere","authors":"Z. Suvorova, I. Mingalev, O. Mingalev, O. I. Ahmetov, L. B. Volkomirskaya, O. A. Gulevich, A. Reznikov","doi":"10.1134/s2070048224020182","DOIUrl":"https://doi.org/10.1134/s2070048224020182","url":null,"abstract":"","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"317 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140781843","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
Modeling the Dynamics of Substances within a Self-Consistent Model of a Systemic Circle of Blood Circulation 在自洽的系统血液循环模型中建立物质动态模型
Mathematical Models and Computer Simulations Pub Date : 2024-04-01 DOI: 10.1134/s2070048224020029
M. Abakumov, S. I. Mukhin, K. M. Mysova, A. Y. Pokladyuk, A. B. Khrulenko
{"title":"Modeling the Dynamics of Substances within a Self-Consistent Model of a Systemic Circle of Blood Circulation","authors":"M. Abakumov, S. I. Mukhin, K. M. Mysova, A. Y. Pokladyuk, A. B. Khrulenko","doi":"10.1134/s2070048224020029","DOIUrl":"https://doi.org/10.1134/s2070048224020029","url":null,"abstract":"","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"1 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140779349","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
Dynamic Load Balancing Using Adaptive Locally Refined Meshes 利用自适应局部细化网格实现动态负载平衡
Mathematical Models and Computer Simulations Pub Date : 2024-04-01 DOI: 10.1134/s2070048224020091
S. K. Grigoriev, D. A. Zakharov, M. A. Kornilina, M. Yakobovskiy
{"title":"Dynamic Load Balancing Using Adaptive Locally Refined Meshes","authors":"S. K. Grigoriev, D. A. Zakharov, M. A. Kornilina, M. Yakobovskiy","doi":"10.1134/s2070048224020091","DOIUrl":"https://doi.org/10.1134/s2070048224020091","url":null,"abstract":"","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"254 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140792213","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
On the Resonant Frequencies of a Partially Shielded Circular Dielectric Cylinder 关于部分屏蔽圆形介质圆柱体的谐振频率
Mathematical Models and Computer Simulations Pub Date : 2024-04-01 DOI: 10.1134/s2070048224020042
G. Abgaryan, Y. V. Shestopalov, K. A. Romanov
{"title":"On the Resonant Frequencies of a Partially Shielded Circular Dielectric Cylinder","authors":"G. Abgaryan, Y. V. Shestopalov, K. A. Romanov","doi":"10.1134/s2070048224020042","DOIUrl":"https://doi.org/10.1134/s2070048224020042","url":null,"abstract":"","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"426 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140780747","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
Modification of the Wilson–Frankel Kinetic Model and Atomistic Simulation of the Rate of Melting/Crystallization of Metals 修改威尔逊-弗兰克尔动力学模型并对金属的熔化/结晶速率进行原子模拟
Mathematical Models and Computer Simulations Pub Date : 2024-04-01 DOI: 10.1134/s207004822402011x
V. Mazhukin, A. V. Shapranov, O. N. Koroleva, A. Mazhukin
{"title":"Modification of the Wilson–Frankel Kinetic Model and Atomistic Simulation of the Rate of Melting/Crystallization of Metals","authors":"V. Mazhukin, A. V. Shapranov, O. N. Koroleva, A. Mazhukin","doi":"10.1134/s207004822402011x","DOIUrl":"https://doi.org/10.1134/s207004822402011x","url":null,"abstract":"","PeriodicalId":38050,"journal":{"name":"Mathematical Models and Computer Simulations","volume":"602 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140772808","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信