Computational Continuum Mechanics最新文献_第10页

Peculiarities of hydrodynamics of water reservoirs characterized by the vertical density inhomognneity of water masses under active technogenesis conditions 主动技术条件下以水体垂直密度不均匀性为特征的水库水动力特性

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2023.16.1.9

T. Lyubimova, A. Lepikhin, Y. Parshakova, A. V. Bogomolov, Y. Lyakhin, A. Isakhov

引用次数: 0

On the sensitivity and reconstruction of 2D prestress state in a thin plate 薄板二维预应力状态敏感性及重建研究

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2023.16.1.5

A. Vatulyan, R. Nedin

引用次数: 0

Modeling of the coupled processes of residual stress formation in a metallic alloy taking into account structure transformation due to pulse thermo-force surface hardening 考虑脉冲热力表面硬化引起的组织转变的金属合金残余应力形成耦合过程的建模

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2022.15.4.35

V. Bagmutov, D. Denisevich, I. Zakharov, M. Romanenko, V. V. Barinov

引用次数: 0

Development of methods for solving torsion problems of physically nonlinear solids 求解物理非线性固体扭转问题方法的发展

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2021.14.4.34

E. Lomakin, P. Tishin

引用次数: 0

Standing convective waves in poor conducting liquid 导电性差的液体中的驻对流波

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2023.16.1.10

O. Nekrasov

引用次数: 0

Analysis of the interaction of a supersonic gas flow with a solid low melting polymer as a ramjet engine propellant 超音速气流与固体低熔点聚合物作为冲压发动机推进剂的相互作用分析

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2021.14.3.23

N. P. Skibina, V. Faraponov

{"title":"Analysis of the interaction of a supersonic gas flow with a solid low melting polymer as a ramjet engine propellant","authors":"N. P. Skibina, V. Faraponov","doi":"10.7242/1999-6691/2021.14.3.23","DOIUrl":"https://doi.org/10.7242/1999-6691/2021.14.3.23","url":null,"abstract":"The performance of ramjet engines with a supersonic combustion is one of the main directions of hypersonic aircraft development research is studied. Researchers around the world create special experimental facilities for testing engine models, investigate fuels for ramjet engines and classify new scientific data. Since the ambient temperature and the oxidizer flow temperature in engine air duct are low at the flight altitude of a hypersonic aircraft, low melting materials can be used as a fuel agent in a solid propellant. The main purpose of this work is analysis of heat and mass exchange processes associated with the motion of a supersonic gas flow in an axisymmetric duct described as a combustion chamber of a ramjet engine with a solid polymer. The mathematical model of the problem consists of the unsteady Reynolds-averaged Navier–Stokes equations and the equations of a semiempirical turbulence model. The stated problem was solved by the finite volume method. Initial and boundary conditions are identical to experimental conditions and this makes it possible to verify the results of the numerical solution directly during aerodynamic tests. Gas dynamic parameters for the gas flow in an air duct of a ramjet engine are described, pressure profiles at the gas-solid interface are plotted, and a transient pressure behavior is considered. The results of the solution of a coupled heat transfer problem allow analyzing a dynamic heat exchange pattern in a solid polymeric material (caprolone, polyethylene and polyoxymethylene). It has been found that the effect of a supersonic flow on the surface of a low melting material within one second leads to temperature changes in a solid to a depth of 20% of its total thickness.","PeriodicalId":273064,"journal":{"name":"Computational Continuum Mechanics","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133173616","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

Calculation of quasi-dimensional flows of boiling liquid 沸腾液体准量纲流动的计算

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2019.12.3.28

V. Surov

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引用次数: 1

Modeling of structural damage evolution in filled elastomers with regard for interfacial interaction 考虑界面相互作用的填充弹性体结构损伤演化模型

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2019.12.4.32

A. K. Sokolov, O. Garishin, A. Svistkov

引用次数: 0

Numerical study of the effect of vibrations on the interaction in an ensemble of gas bubbles and solid particles in a liquid 振动对液体中气泡和固体颗粒系综相互作用影响的数值研究

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2019.12.1.5

V. Konovalov, T. Lyubimova

引用次数: 5

Analytical and numerical assessments of probabilities of fatigue fracture of pipeline components under internal pressure 内压作用下管道构件疲劳断裂概率的分析与数值评估

Computational Continuum Mechanics Pub Date : 1900-01-01 DOI: 10.7242/1999-6691/2021.14.4.31

Y. Matvienko, D. Reznikov

引用次数: 0