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SMALL ICING WIND TUNNEL BASED AT THE KHRISTIANOVICH INSTITUTE OF THEORETICAL AND APPLIED MECHANICS OF THE SIBERIAN BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES 俄罗斯科学院西伯利亚分院克里斯蒂安诺维奇理论与应用力学研究所的小型结冰风洞
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-02-13 DOI: 10.1134/S0021894423060111
Yu. M. Prikhodko, A. A. Sidorenko, A. S. Shmakov, A. M. Shevchenko, A. M. Sorokin, A. A. Bogdanov, A. N. Shiplyuk
{"title":"SMALL ICING WIND TUNNEL BASED AT THE KHRISTIANOVICH INSTITUTE OF THEORETICAL AND APPLIED MECHANICS OF THE SIBERIAN BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES","authors":"Yu. M. Prikhodko,&nbsp;A. A. Sidorenko,&nbsp;A. S. Shmakov,&nbsp;A. M. Shevchenko,&nbsp;A. M. Sorokin,&nbsp;A. A. Bogdanov,&nbsp;A. N. Shiplyuk","doi":"10.1134/S0021894423060111","DOIUrl":"10.1134/S0021894423060111","url":null,"abstract":"<p>A description of a small icing wind tunnel designed for studying the icing processes at the Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences is presented. The use of such a wind tunnel offers a possibility not only of studying the physical features of the icing process, but also of testing methods of anti-icing control, validating numerical methods used for calculating the icing processes, etc.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 6","pages":"1015 - 1024"},"PeriodicalIF":0.5,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140888987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
INFLUENCE OF SUBSTRATE PREHEATING ON THE STRUCTURAL AND PHASE COMPOSITION OF A NICKEL-BASED CERMET COATING 基底预热对镍基金属陶瓷涂层的结构和相组成的影响
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-02-13 DOI: 10.1134/S0021894423060020
M. A. Gulov, I. E. Vitoshkin, A. A. Filippov, A. P. Zavyalov, A. G. Malikov
{"title":"INFLUENCE OF SUBSTRATE PREHEATING ON THE STRUCTURAL AND PHASE COMPOSITION OF A NICKEL-BASED CERMET COATING","authors":"M. A. Gulov,&nbsp;I. E. Vitoshkin,&nbsp;A. A. Filippov,&nbsp;A. P. Zavyalov,&nbsp;A. G. Malikov","doi":"10.1134/S0021894423060020","DOIUrl":"10.1134/S0021894423060020","url":null,"abstract":"<p>The deposition process of a nickel-based cermet coating with a high (60 wt.%) mass content of tungsten carbide was investigated. The results showed preheating the substrate to 500°C prevented the formation of cracks and pores in the coating. This is because preheating reduces the thermal shock between the substrate and the coating, leading to better adhesion and fewer defects. Additionally, synchrotron radiation was used to analyze the phase composition of the resulting composite. It was found that additional heating of the sample to 500°C during surfacing did not cause significant changes in the phase composition of the composite.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 6","pages":"954 - 958"},"PeriodicalIF":0.5,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139751859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GADOLIN PROBLEM OF ASSEMBLING A PRESTRESSED TWO-LAYER PIPE 装配预应力双层管道的伽多林问题
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S002189442305022X
A. A. Burenin, A. V. Tkacheva
{"title":"GADOLIN PROBLEM OF ASSEMBLING A PRESTRESSED TWO-LAYER PIPE","authors":"A. A. Burenin,&nbsp;A. V. Tkacheva","doi":"10.1134/S002189442305022X","DOIUrl":"10.1134/S002189442305022X","url":null,"abstract":"<p>This paper presents a solution to the Gadolin problem of the evolution of stressed states in the shrink-fit assembly of two cylindrical pipes. The materials of the assembly parts are described using the mathematical model of an ideal elastic-viscoplastic material. The friction law is specified on the contact surface of the materials of the assembly. The yield criterion is taken to be the maximum octahedral stress criterion (von Mises criterion) in which the yield stress depends significantly on the local temperature. Time-varying thermal stresses are calculated in successive time steps, depending on the temperature distribution reached by that time. The calculated residual stress and fit interference in the assembly are compared with the values obtained from a numerical-analytical solution of the one-dimensional problem. Differences in the behavior of the fit interference in the near-end region of the structure due to the neglect of the singularity in the boundary conditions are noted.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"929 - 942"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139474964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
STUDY OF SELF-ORGANIZED DUST CHAINS WITH ACCOUNT FOR ION DRAG 考虑离子阻力的自组织尘埃链研究
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S0021894423050012
M. V. Salnikov, A. V. Fedoseev, G. I. Sukhinin
{"title":"STUDY OF SELF-ORGANIZED DUST CHAINS WITH ACCOUNT FOR ION DRAG","authors":"M. V. Salnikov,&nbsp;A. V. Fedoseev,&nbsp;G. I. Sukhinin","doi":"10.1134/S0021894423050012","DOIUrl":"10.1134/S0021894423050012","url":null,"abstract":"<p>This paper describes a numerical study of the equilibrium parameters of a one-dimensional chain consisting of three dust particles levitating in the electric fields of a gas-discharge plasma. A numerical model is considered in which the movement of dust particles is simulated with account for the action of the Coulomb repulsion force, external electric field, gravity, electrostatic force induced by a plasma space charge, and ion drag described analytically. The spatial distributions of the plasma space charge are compared with a potential around dust particles and the equilibrium structural parameters of a dust chain, depending on the fact whether the ion drag is taken into account analytically or not. It is shown that, when the ion drag is taken into account analytically, the dust chain as a whole is displaced in the direction of the ion flow. In this case, the distances between the dust particles turn out to be smaller than in the case where the ion drag is neglected.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"737 - 747"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139474969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SCALING LAWS IN DIRECT METAL DEPOSITION OF CERMET TRACKS 直接金属沉积金属陶瓷轨道的缩放规律
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S0021894423050115
A. A. Golyshev, N. A. Sibiryakova
{"title":"SCALING LAWS IN DIRECT METAL DEPOSITION OF CERMET TRACKS","authors":"A. A. Golyshev,&nbsp;N. A. Sibiryakova","doi":"10.1134/S0021894423050115","DOIUrl":"10.1134/S0021894423050115","url":null,"abstract":"<p>Dimensionless parameters and scaling laws that describe the geometric dimensions of a cermet weld bead formed during direct metal deposition are determined. A Ti64 titanium alloy and ceramics (silicon carbide, SiC) with different volume fractions are used as a powder mixture. A model for estimating the thermophysical parameters of a heterogeneous material is proposed. It is shown that, regardless of the volume fraction of ceramics, the dimensionless geometric parameters of a single track (depth, width, and height) depend on two dimensionless parameters: normalized enthalpy and the Peclet number. Also, these dependences can be approximated by algebraic expressions.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"821 - 826"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139474972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
UNSTEADY FLOW IN A RESERVOIR WITH A MAIN FRACTURE CROSSING AN INJECTION OR PRODUCTION WELL 主裂缝穿过注入井或生产井的储层中的不稳定流
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S0021894423050139
A. M. Il’yasov, V. N. Kireev
{"title":"UNSTEADY FLOW IN A RESERVOIR WITH A MAIN FRACTURE CROSSING AN INJECTION OR PRODUCTION WELL","authors":"A. M. Il’yasov,&nbsp;V. N. Kireev","doi":"10.1134/S0021894423050139","DOIUrl":"10.1134/S0021894423050139","url":null,"abstract":"<p>The problem of instantaneous injection or withdrawal of Newtonian fluid through an injection or production well into an infinite reservoir with a vertical main fracture of constant width at a given constant bottomhole pressure and constant reservoir pressure is considered. Analytical solutions are obtained for the pressure fields in the fracture and the reservoir during injection or withdrawal of fluid, as well as for the flow velocity in the fracture. An explicit expression for the leak-off (leak-in) of fluid from the fracture into the reservoir (from the reservoir into the fracture) and equations of particle trajectories in the fracture and reservoir are obtained. For the solutions obtained, graphs are plotted for the pressure fields, fluid velocity distributions in the fracture, and fluid leak-off from a finite fracture into a finite reservoir for different reservoir permeabilities.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"840 - 852"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SPECIFIC FEATURES OF FORMATION OF SUPERSONIC JETS OF RAREFIED GASES UNDER CONDITIONS OF DEVELOPED CONDENSATION 在发达冷凝条件下稀薄气体超音速喷流形成的具体特征
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S0021894423050085
K. A. Dubrovin, A. E. Zarvin, A. K. Rebrov
{"title":"SPECIFIC FEATURES OF FORMATION OF SUPERSONIC JETS OF RAREFIED GASES UNDER CONDITIONS OF DEVELOPED CONDENSATION","authors":"K. A. Dubrovin,&nbsp;A. E. Zarvin,&nbsp;A. K. Rebrov","doi":"10.1134/S0021894423050085","DOIUrl":"10.1134/S0021894423050085","url":null,"abstract":"<p>Specific features of gas flows exhausting from supersonic nozzles to a flooded medium under conditions of clusterization are considered. Radiation of particles in the flow is initiated by a well-focused high-voltage electron beam. Radiation is measured by a high-resolution camera and a spectrometer with a wide range of wavelengths. For characteristic sizes of jets of condensing gases in the entire range of examined stagnation pressures and background ambient space, it is possible to use the same dependence on the parameters as that in the case with a correction factor for taking into account the influence of condensation, which, in turn, depends on the cluster size. The form of the correction factor is presented. The dependence of the previously detected process of formation of a secondary external jet in flows of easily condensing gases (“cluster wake\") is studied. The reasons and conditions for the emergence of this effect are considered. The processes of formation of the traditional spindle-shaped jet and the new secondary jet are compared. The results of measurements of the diameters of the traditional and secondary jets in the maximum cross sections by means of photometry in various exhaust regimes are reported. The reasons for the differences in formation of the traditional and secondary jets under conditions of developed condensation of particles are considered. The “cluster wake\" is found to affect the process of gas penetration from the ambient space to the supersonic flow. Specific features of radiation of the particles of the “cluster wake\" are considered, and the time of existence of radiation in the excited state is estimated.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"793 - 804"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PREDICTION OF DURABILITY OF A FIBER BUNDLE UNDER UNIAXIAL TENSION ON THE BASIS OF THE THERMAL-FLUCTUATION MODEL OF ITS BRITTLE FRACTURE 根据纤维束脆性断裂的热波动模型预测纤维束在单轴拉力下的耐久性
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S002189442305019X
V. V. Shevelev
{"title":"PREDICTION OF DURABILITY OF A FIBER BUNDLE UNDER UNIAXIAL TENSION ON THE BASIS OF THE THERMAL-FLUCTUATION MODEL OF ITS BRITTLE FRACTURE","authors":"V. V. Shevelev","doi":"10.1134/S002189442305019X","DOIUrl":"10.1134/S002189442305019X","url":null,"abstract":"<p>A model is proposed for assessing the durability of a bundle of identical fibers under brittle fracture in a tensile stress region located to the left of the Griffiths fracture threshold. It is shown that, in a specified stress range, the average durability and the dispersion of durability values increase indefinitely with a decreasing tensile stress. Estimates are obtained for the incubation period of durability, its confidence probability, and the lower limit of the number of elements of a bundle of identical fibers that guarantee the required durability of the bundle.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"902 - 910"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SUPERSONIC GAS FLOW FROM AN ANNULAR NOZZLE INTO A LOW-PRESSURE CHAMBER WITH AN AXIAL CHANNEL: KINETIC AND CONTINUUM SOLUTIONS 超音速气流从环形喷嘴进入带轴向通道的低压腔：动力学和连续体解决方案
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S0021894423050097
A. A. Morozov, I. B. Yudin, A. G. Abramov, P. A. Skovorodko, R. G. Sharafutdinov
{"title":"SUPERSONIC GAS FLOW FROM AN ANNULAR NOZZLE INTO A LOW-PRESSURE CHAMBER WITH AN AXIAL CHANNEL: KINETIC AND CONTINUUM SOLUTIONS","authors":"A. A. Morozov,&nbsp;I. B. Yudin,&nbsp;A. G. Abramov,&nbsp;P. A. Skovorodko,&nbsp;R. G. Sharafutdinov","doi":"10.1134/S0021894423050097","DOIUrl":"10.1134/S0021894423050097","url":null,"abstract":"<p>Supersonic gas flow from an annular nozzle into a low-pressure chamber is studied numerically using kinetic and continuum approaches. Such flows find applications in gas-jet plasma-chemical technologies using an electron beam passing through an axial channel. The study is performed by using the direct simulation Monte Carlo method and by solving continuum equations using ANSYS Fluent software. It is shown that the solutions obtained are in good agreement with each other even in low-density regions of the electron beam channel. This leads to the conclusion that ANSYS Fluent software is suitable for simulating flows of this type.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"805 - 813"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139474955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SHOT-PEENING-INDUCED RESIDUAL STRESSES IN POWDER COATINGS PRODUCED BY SPRAYING 喷涂生产的粉末涂料中由喷丸引起的残余应力
IF 0.5 4区 工程技术
Journal of Applied Mechanics and Technical Physics Pub Date : 2024-01-15 DOI: 10.1134/S0021894423050188
V. Yu. Ul’yanitskii, D. K. Rybin, A. Yu. Larichkin
{"title":"SHOT-PEENING-INDUCED RESIDUAL STRESSES IN POWDER COATINGS PRODUCED BY SPRAYING","authors":"V. Yu. Ul’yanitskii,&nbsp;D. K. Rybin,&nbsp;A. Yu. Larichkin","doi":"10.1134/S0021894423050188","DOIUrl":"10.1134/S0021894423050188","url":null,"abstract":"<p>In order to study the shot peening that occurs during the application of powder coatings, experiments are carried out on glass shot peening of steel test strips using a CCDS2000 detonation device. Experimental dependences of the shot peening depth <span>(delta)</span> and the residual stresses <span>(sigma)</span> in a hardened layer on treatment parameters (particle size, density, and velocity, as well as the strength of the test strip material) are obtained. Engineering equations are proposed for calculating the values of <span>(delta)</span> and <span>(sigma)</span>.</p>","PeriodicalId":608,"journal":{"name":"Journal of Applied Mechanics and Technical Physics","volume":"64 5","pages":"890 - 901"},"PeriodicalIF":0.5,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139474960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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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