发布求助
文献互助 智能选刊 最新文献

29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES最新文献

筛选
英文 中文
Numerical simulation of proppant transport using stochastic model 基于随机模型的支撑剂运移数值模拟
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0060195
Svetlana O. Kraeva, Nikita Mushchak, E. Starobinskii
{"title":"Numerical simulation of proppant transport using stochastic model","authors":"Svetlana O. Kraeva, Nikita Mushchak, E. Starobinskii","doi":"10.1063/5.0060195","DOIUrl":"https://doi.org/10.1063/5.0060195","url":null,"abstract":"In this paper, an effect of the multistage injection of several proppants on the development of a hydraulic fracture is considered. To solve the problem, the multiphase particle-cell method (MP-PIC) was used without taking into account the interaction between the particles. The numerical algorithm was built-in as a module into the Planar3D ELSA fracture simulator for a multilayer medium.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132895534","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
Statistical method for determining the flat segments of boundaries for crystallites 确定晶界平面段的统计方法
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059506
N. Kondratev, E. Makarevich, A. Podsedertsev
{"title":"Statistical method for determining the flat segments of boundaries for crystallites","authors":"N. Kondratev, E. Makarevich, A. Podsedertsev","doi":"10.1063/5.0059506","DOIUrl":"https://doi.org/10.1063/5.0059506","url":null,"abstract":"A method for specifying flat sections of crystallite boundaries (grains or sub-grains), taking into consideration their topology, is proposed. The shape of crystallites in the form of ellipsoids is assumed to be known based on the approximation of averaged experimental data. A statistical problem on the determination of flat sections of grain boundaries, the area, orientation and position in space of which are found taking into account the shape of the prescribed ellipsoid, is formulated. To solve this problem, an attempt to ensure the fulfillment of two conditions is made. The first one is flat sections of the boundary along the surface of the ellipsoid should have an approximately uniform distribution. The second one is that in places of the greatest curvature of the ellipsoid surface there is an increased density of facets with the smallest area. The noted conditions provide the necessary approximation of the ellipsoid by flat sections for the implementation of the developed statistical multilevel models, taking into consideration the structure of the material.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121650335","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 of the fluid filtration to a well, equipped with the vertical slot filters 将流体过滤建模到一口井中，配备了垂直槽式过滤器
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0060498
V. Astafev, Sergey A. Bulgakov, Vasilina E. Podyacheva
{"title":"Modeling of the fluid filtration to a well, equipped with the vertical slot filters","authors":"V. Astafev, Sergey A. Bulgakov, Vasilina E. Podyacheva","doi":"10.1063/5.0060498","DOIUrl":"https://doi.org/10.1063/5.0060498","url":null,"abstract":"To ensure the necessary flow rates of wells equipped with an anti-sand filter, it is necessary to evaluate the throughput of the filter. In this paper we are considering one of its most common designs – a vertical-slotted filter. For the case of a single slot periodically repeating over the pipe, an expression for the determination of the skin factor was obtained by V.P. Pilatovsky. In order to identify the best filtering scheme for the arrangement of the slots in the vertical-slit filter, in this work a universal dependence for determining the value of the additional filtering resistance that appears in the bottomhole zone of the well has been considered.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115192555","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 implementation issues of the deformation and destruction process of bodies with stress concentrators 带应力集中器体变形破坏过程的数值实现问题
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059553
Evgenia V. Feklistov, M. Tretyakov, V. Wildemann
{"title":"Numerical implementation issues of the deformation and destruction process of bodies with stress concentrators","authors":"Evgenia V. Feklistov, M. Tretyakov, V. Wildemann","doi":"10.1063/5.0059553","DOIUrl":"https://doi.org/10.1063/5.0059553","url":null,"abstract":"In this paper on the basis of a mathematical model a study of the parameters of numerical modeling is carried out for the results of solving boundary value problems on the destruction of bodies with concentrators and crack-like defects. The following parameters are considered: loading step; taking into account the iterative procedure of the destruction process; the degree of discretization of the computational domain; accounting for elements close to a critical state.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116800318","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: 1
Free thermal stationary convection of incompressible fluid in a closed loop 闭环中不可压缩流体的自由热静止对流
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059562
M. Koskov
{"title":"Free thermal stationary convection of incompressible fluid in a closed loop","authors":"M. Koskov","doi":"10.1063/5.0059562","DOIUrl":"https://doi.org/10.1063/5.0059562","url":null,"abstract":"The natural thermal stationary convection of a one-component fluid in a closed long loop is investigated theoretically. A solution of the two-dimensional boundary value problem is proposed. The gravitational convection equations have analytically reduced to non-linear equations, which contains a set of parameters included in the temperature and velocity fields functions. Calculation of the parameters values has carried out used a computer algebra package. Rayleigh and Nusselt numbers interrelation has computed in the case of long contour. Comparison of the presented simulation with a one-dimensional model has also been made.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129711085","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
Enhanced kinematics in oriented and Cosserat solids with structural inhomogeneity 具有结构不均匀性的定向和coserat固体的增强运动学
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059879
S. Lychev, K. Koifman, A. Petrenko
{"title":"Enhanced kinematics in oriented and Cosserat solids with structural inhomogeneity","authors":"S. Lychev, K. Koifman, A. Petrenko","doi":"10.1063/5.0059879","DOIUrl":"https://doi.org/10.1063/5.0059879","url":null,"abstract":"In present paper the generalized kinematics for oriented media is discussed. The approach suggested is based on the geometrical formalism, developed in the theory of connection on principle bundles. This makes it possible to take into account a range of orientations, associated with an elementary volume of underlying body, while classical Cosserat type theories involve the only one. The need for such a generalization arises, for example, in the modeling of composites, reinforced with nanosized fibers. In such a case the transformation of elementary volume to the state, free from stresses, generally is not possible. The reason for that is the fact that with any deformation one can release local stresses, associated only with a part of fibers, oriented in some specific directions. To relax fibers, oriented otherwise, one has to apply another deformation. Thus, for complete description of all relaxation transformation in some elementary volume, the continuous family of generalized deformations is required. The notion of fiber, used in differential geometry of fiber bundles, provides an excellent tool for such formalization. In present paper a way for implementation discussed ideas is shown. It is also shown that classical Cosserat approach can be obtained within generalized one as some section of a bundle.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115937199","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
Field-induced response of non-spherical magnetopolymersomes: Coarse-grained molecular dynamics model 非球形磁聚合体的场致响应:粗粒度分子动力学模型
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059529
A. Ryzhkov, Y. Raikher
{"title":"Field-induced response of non-spherical magnetopolymersomes: Coarse-grained molecular dynamics model","authors":"A. Ryzhkov, Y. Raikher","doi":"10.1063/5.0059529","DOIUrl":"https://doi.org/10.1063/5.0059529","url":null,"abstract":"An improved coarse-grained molecular dynamics model of magnetosensitive polymersome is presented. The modification allows facile constructing of the polymersome templates to be used in the simulations aimed at detailed description of the field-induced magnetodeformational behavior of these soft matter objects. The model is applied to study the magnetomechanical and structural responses of a spheroidal polymersome in magnetic field directed along and across the major axes of the spheroid. The results obtained reveal, in particular, a notable swelling effect caused by a uniform magnetic field.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127286955","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 prediction of a MFC actuator piezoelectroelastic properties for solving active control problems 用于主动控制问题的MFC作动器压电弹性特性数值预测
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059856
A. Anoshkin, A. Pankov, E. Barkanov, P. Pisarev, S. Bayandin
{"title":"Numerical prediction of a MFC actuator piezoelectroelastic properties for solving active control problems","authors":"A. Anoshkin, A. Pankov, E. Barkanov, P. Pisarev, S. Bayandin","doi":"10.1063/5.0059856","DOIUrl":"https://doi.org/10.1063/5.0059856","url":null,"abstract":"As part of the research, a mathematical model was developed and the formulation of coupled boundary-value problems of electroelastic deformation of an inhomogeneous anisotropic body was stated. Using the method of averaging over the volume, the effective piezoelectroelastic constants of Macro Fiber Composite with piezoelectric fibers were calculated. The verification of the developed mathematical models was carried out.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125929378","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
Preface: 29th Russian Conference on Mathematical Modeling in Natural Sciences (Rumonas) 第29届俄罗斯自然科学数学建模会议(Rumonas)
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/12.0005450
P. MatveenkoValeriy, V. TrusovPeter, YantsAnton Yu., A. FaermanVladimir
{"title":"Preface: 29th Russian Conference on Mathematical Modeling in Natural Sciences (Rumonas)","authors":"P. MatveenkoValeriy, V. TrusovPeter, YantsAnton Yu., A. FaermanVladimir","doi":"10.1063/12.0005450","DOIUrl":"https://doi.org/10.1063/12.0005450","url":null,"abstract":"","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114433583","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
Statistical crystal plasticity model of commercially pure titanium: Validation and estimation of sensitivity to impacts perturbations 商业纯钛的统计晶体塑性模型:对冲击扰动敏感性的验证和估计
29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES Pub Date : 2021-07-13 DOI: 10.1063/5.0059573
K. Romanov, A. Shveykin
{"title":"Statistical crystal plasticity model of commercially pure titanium: Validation and estimation of sensitivity to impacts perturbations","authors":"K. Romanov, A. Shveykin","doi":"10.1063/5.0059573","DOIUrl":"https://doi.org/10.1063/5.0059573","url":null,"abstract":"A two-level statistical constitutive model of commercially pure titanium with hcp is considered. A series of computational experiments for uniaxial loadings with different set of mechanisms taken into account was carried out. The model identification and verification (validation) were implemented on the basis of these experiments. An algorithm for assessing of sensitivity of the macrolevel response to randomly selected perturbations of kinematic impacts during the deformation process was developed and implemented. The results of numerical simulations showed that the model is stable to these perturbations.","PeriodicalId":177478,"journal":{"name":"29TH RUSSIAN CONFERENCE ON MATHEMATICAL MODELLING IN NATURAL SCIENCES","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131036012","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：604180095
Book学术官方微信