Herald of the Bauman Moscow State Technical University. Series Natural Sciences最新文献_第10页

Convective Heat Transfer and Friction in a Thin Laminar-Turbulent Boundary Layer on the Permeable Surface of a Blunted Cone of Small Elongation 小伸长钝锥透水表面薄层流边界层的对流换热与摩擦

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-33-43

V. V. Gorskiy, A. G. Savvina

{"title":"Convective Heat Transfer and Friction in a Thin Laminar-Turbulent Boundary Layer on the Permeable Surface of a Blunted Cone of Small Elongation","authors":"V. V. Gorskiy, A. G. Savvina","doi":"10.18698/0236-3941-2022-4-33-43","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-33-43","url":null,"abstract":"Solving the problem of calculating convective heat transfer and friction in the laminar-turbulent boundary layer involves the need for numerical integration of differential equations, supplemented by those or other semiempirical models of apparent turbulent viscosity, which should be validated on the results of experimental studies, carried out in conditions, providing simulation of the gas dynamic picture of body flowing by a gas stream. Unfortunately, at present, there are no literature data on studies of laminar-turbulent heat exchange on the permeable surface of a blunted body, and under these conditions, one has to go by the way of comparing the calculated data with the results of experiments carried out on sharp bodies. Literature sources describe the results of studies carried out for a hemisphere, in which one of the semi-empirical models of apparent turbulent viscosity is used, tested on the results of experiments carried out on the impermeable surface of such shaped body. In this case, it was possible to obtain a physically consistent picture of the influence exerted by blowing gas through the wall on the degree of blocking of the convective heat flow. In the absence of qualitative experimental data on this issue, it seems reasonable to apply in practice the considered semi-empirical model of apparent turbulent viscosity to estimate the degree of blocking of convective heat flow and friction under the specified conditions. This article is devoted to the solution of a similar problem for the lateral surface of a blunted cone","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"224 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89168390","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

Comparative Analysis of the Various Methods Stability in Evaluation of the Bilinear Autoregression Model Parameters 双线性自回归模型参数评价方法稳定性的比较分析

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/1812-3368-2022-6-4-16

N.L. Andreychik, V. Goryainov

{"title":"Comparative Analysis of the Various Methods Stability in Evaluation of the Bilinear Autoregression Model Parameters","authors":"N.L. Andreychik, V. Goryainov","doi":"10.18698/1812-3368-2022-6-4-16","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-6-4-16","url":null,"abstract":"The purpose of this work is to compare various methods in evaluating parameters of a bilinear autoregressive model. Least squares estimate, least absolute deviations estimate and estimate based on the Huber function were used as the parameter estimates. Computer simulation was introduced to study the indicated estimates precision depending on probability distribution of the bilinear autoregressive model upgrading process. Probable distribution of the upgrading process was simulated by normal and uniform distributions, Student distribution with various degrees of freedom, Laplace distribution (double exponential distribution), and Tukey distribution known as the polluted normal distribution. Their mean square error served as the evaluation precision measure. Results of the conducted computational experiment showed that precision of three methods used in evaluating parameters of the bilinear autoregressive series significantly depended on probability distribution of the model upgrading process. In particular, it concerns the number of degrees of freedom of the Student distribution, as well as the Tukey distribution pollution share and amount. If the upgrading process possesses normal and uniform distributions, Student’s distribution with sufficiently high number of degrees of freedom, the least squares method works more efficiently. Estimate based on the Huber function and the least absolute deviations estimate are becoming more efficient compared to the least squares estimation for the Laplace distribution, with a decrease in the number of degrees of freedom --- for the Student distribution, and with an increase in the pollution share and amount --- for the Tukey distribution","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"509 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76398600","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

Recuperation of Aircraft Gas Turbine Engines to Solve Problems Land Transport and Energy 飞机燃气涡轮发动机的回收解决陆运和能源问题

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-19-32

A. Benmunach, G. Zanabili, A. Govorkov

{"title":"Recuperation of Aircraft Gas Turbine Engines to Solve Problems Land Transport and Energy","authors":"A. Benmunach, G. Zanabili, A. Govorkov","doi":"10.18698/0236-3941-2022-4-19-32","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-19-32","url":null,"abstract":"The article presents an example of recuperation of aircraft gas turbine engines (GTE), adapted for use on ground conditions, used both for pipeline transportation of liquid, and gas forms which are oil or gas pipelines, and for power engineering. GTE due to its advanced qualities, such as compactness, specific energy intensity, throttle response, etc., have found a wide application in the form of power units for ground-based purposes. However, questions remain about their reliability and durability under these conditions, one of the approaches for solving these issues is the recuperation of the working process of the aircraft GTE. The paper presents a methodology for the implementation of a variant of the structural layout for recuperation of the power plant for the presented type. The principle of recuperation а GTE consists of the application of methods for converting, transferring, or redirecting heat in engine units Thus the goal of the presented work is to create a comparative methodology for mathematical modeling of the knownthermodynamic cycle of operation of a GTE and cycle with recuperation. The proposed research is aimed to study the option of using the energy of engine exhaust gases through a specially designed (selected) heat exchanger, the main work is the recognition and calculation of the actual state of the thermal potential in the engine, as well as the possibility of using the engine parameters averaged over the section to build a mathematical model for analyzing the performance of GTE cycles with or without heat recovery","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83028843","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

Retroreflector Spherical Systems of the BLITS Glass Satellites BLITS玻璃卫星的后向反射球面系统

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3933-2022-4-108-122

A. Sokolov, Y.I. Merenkova, G.I. Medvedeva, V. Murashkin

{"title":"Retroreflector Spherical Systems of the BLITS Glass Satellites","authors":"A. Sokolov, Y.I. Merenkova, G.I. Medvedeva, V. Murashkin","doi":"10.18698/0236-3933-2022-4-108-122","DOIUrl":"https://doi.org/10.18698/0236-3933-2022-4-108-122","url":null,"abstract":"Spatial and energy characteristics of the BLITS glass geodesic passive satellites with radial symmetry for high-precision laser ranging in the interests of GLONASS were analyzed. Principles of calculating the retroreflector spherical system of satellites being a set of concentric layers with different refractive index and thickness were considered. In this case and in accordance with specifics of space application of the retroreflector spherical system of satellites, it is necessary to ensure the maximum reflected power in the receiver direction taking into account phenomenon of the light high-speed aberration. It is shown that on the basis of simulating in the Zemax program, it becomes possible to select optimal parameters of the optical elements, i.e., curvature radii and refractive indices taking into account the production technological capabilities, which are forming the required curvature of the reflected light wave surface. Based on the aberration calculation, diffraction patterns of the reflected coherent laser radiation in the far zone were analyzed, and design options for a retroreflector spherical system of satellites with increased maxima of the first or second orders were selected. A formula is provided for estimating spatial energy characteristics of the BLITS satellites including the equivalent scattering surface. The concept of the outflow beam efficient diameter is introduced, within which the reflected light forms a diffraction pattern in the far zone","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77058877","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

Mathematical Simulating of the Flow in the Fan Impeller with Meridional Acceleration 考虑子午加速的风机叶轮内部流动的数学模拟

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-12-01 DOI: 10.18698/0236-3941-2022-4-138-153

A. Furashov, A. Arbekov, P.M. Vasenina, V. V. Mitrofovich, N. Semilet

{"title":"Mathematical Simulating of the Flow in the Fan Impeller with Meridional Acceleration","authors":"A. Furashov, A. Arbekov, P.M. Vasenina, V. V. Mitrofovich, N. Semilet","doi":"10.18698/0236-3941-2022-4-138-153","DOIUrl":"https://doi.org/10.18698/0236-3941-2022-4-138-153","url":null,"abstract":"The article considers a comparison of the methods for simulating the flow in the fan impeller with the meridional acceleration of the flow. The aim of this work is to compare the results of flow simulation obtained using the method of calculating the flow along axisymmetric current surfaces with variable thickness in relative motion with the solution obtained by the CFD method. The discrepancy between the results of determining the pressure for the test problem --- the flow in an elementary blade row is not exceeded 2 % with a continuous flow. The resulting distribution of velocity along the contour of the blade makes it possible to proceed to the calculation of the boundary layer on its surface and to take into account the profile losses in the rotor, as well as to clarify the location of the trailing points on the profile. The presented work shows the possibility of using the method of calculating the flow along axisymmetric current surfaces with variable thickness for profiling axial fans with meridional flow acceleration. The rotor was profiled using the method described in the article and a CFD calculation was performed, which confirmed the theoretical head coefficient Ht = 0.68 laid down during profiling at a given flow rate ca1 = 0.5, the total efficiency in the rotor was η∗f.i = 0.93","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85240287","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

Hydrogen-Air Flame Propagation in a Tube with Heat-Absorbing Lining 带吸热衬管中氢气-空气火焰的传播

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-10-01 DOI: 10.18698/1812-3368-2022-5-31-44

V. Volodin, V. Golub, A. Elyanov, A. Mikushkin

{"title":"Hydrogen-Air Flame Propagation in a Tube with Heat-Absorbing Lining","authors":"V. Volodin, V. Golub, A. Elyanov, A. Mikushkin","doi":"10.18698/1812-3368-2022-5-31-44","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-5-31-44","url":null,"abstract":"The paper presents experimental investigation results concerning combustion of initially stationary hydrogen-air mixture in a tube, one of the walls of which is lined with steel wool, a fibrous absorbent material. We used a schlieren photograph series imaging the cellular flame to obtain the distance traversed by the flame front as a function of time for the case when lining is absent and for three cases of steel wool lining of varied thickness and porosity. The paper shows that flame propagation rate in the hydrogen-air mixture containing 15 vol % hydrogen in a tube featuring a circular cross-section with a diameter of 54 mm when lining is present is up to 3 times higher than the flame propagation rate in a tube without lining. We calculated the density, heat capacity and thermal conductivity for the steel wool. We also calculated heat emission rate during combustion and the rate at which the steel wool layer absorbs heat from the region occupied by combustion products. We determined the percentage of heat energy absorbed by the steel wool and analysed how this effect affects flame propagation rate. We measured cell dimensions in an unstable flame propagating in a tube with and without lining. For the case of a flame front propagating across a fibrous absorbent material layer, we found that the average cell size observed decreases twofold","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74202512","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

Evaluating Possibilities of the Modern Chemical Kinetic Mechanisms of Acetylene Oxidation in Simulating the Non-Stationary Combustion Processes 评价乙炔氧化的现代化学动力学机制在模拟不稳定燃烧过程中的可能性

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-10-01 DOI: 10.18698/1812-3368-2022-5-62-85

I. Yakovenko, A. Yarkov, A. V. Turnin, A. Tereza, A. Novitski, P. Krivosheyev

{"title":"Evaluating Possibilities of the Modern Chemical Kinetic Mechanisms of Acetylene Oxidation in Simulating the Non-Stationary Combustion Processes","authors":"I. Yakovenko, A. Yarkov, A. V. Turnin, A. Tereza, A. Novitski, P. Krivosheyev","doi":"10.18698/1812-3368-2022-5-62-85","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-5-62-85","url":null,"abstract":"Acetylene is characterized by high reactivity and appears to be one of the promising gas fuels. However, possible combustion regimes of such fuels require a comprehensive study to be widely introduced in practice. This work is devoted to analyzing the modern kinetic mechanisms of acetylene oxidation. Current approaches to numerical analysis of the gas-dynamic flows in chemically active gas mixtures are a powerful tool in solving many industrial and energy problems. Obtaining positive results of numerical simulation of the non-stationary combustion and detonation processes is impossible without the use of reliable and efficient kinetic mechanisms. Kinetic mechanisms were considered describing the acetylene oxidation. Eight most optimal mechanisms were studied to identify the possibility of their implementation in detailed simulation of the non-stationary combustion processes, in particular, in flame acceleration and transition to detonation. Ignition delay time and laminar burning velocity were calculated using a complete model of the reacting medium gas dynamics. To evaluate correctness of the ignition and combustion parameters obtained values, they were compared with the available experimental data. Based on the obtained results analysis, conclusions were made on the possibility of applying the kinetic mechanisms under consideration, taking into account the combustion parameters accuracy and the computational efficiency","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85261739","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

Comparative Study of Nanomaterials in the Conditions of their Operation as Part of Color-Sensitized and Perovskite Solar Cells 纳米材料在色敏和钙钛矿太阳能电池中工作条件的比较研究

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-10-01 DOI: 10.18698/1812-3368-2022-5-139-158

E. A. Nizhnikovskiy

{"title":"Comparative Study of Nanomaterials in the Conditions of their Operation as Part of Color-Sensitized and Perovskite Solar Cells","authors":"E. A. Nizhnikovskiy","doi":"10.18698/1812-3368-2022-5-139-158","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-5-139-158","url":null,"abstract":"The prospects for creating the photoelectrochemical solar energy converters or solar cells based on the color-sensitized wide-gap semiconductors and perovskites were studied. Possible design, materials and technologies required in creation of such converters were considered. Based on the study of numerous literature data, it was demonstrated that the use of sensitized mesoporous titanium dioxide as a photoanode was quite expedient. The mesoporous titanium oxide film has a developed surface and, accordingly, a large area for the sensitizer adsorption. Mediator systems were studied, which were one of the key components of a photoelectrochemical cell; their characteristics significantly affect efficiency and stability of devices in general, as well as the electrocatalysts required in regeneration of the oxidized mediator component. Color-sensitized solar cells based on the mesoporous semiconductors are of the increasing interest because of their relatively low cost, simple manufacturing technology and high solar light conversion efficiency. Perovskites were studied; they include a group of materials with similar crystal structure able to compete with traditional silicon solar cells due to their flexibility, low cost of films and relative simplicity in the manufacturing process. Photoelectrochemical converters based on color-sensitized wide-gap semiconductors and perovskites are interesting from a practical point of view as an alternative to the traditional silicon technology","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86978533","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

Tangible Power Loss Dwindling by Canadian Yukon Cougar Optimization Algorithm 加拿大育空美洲狮优化算法减少有形功率损耗

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-10-01 DOI: 10.18698/1812-3368-2022-5-16-30

L. Kanagasabai

{"title":"Tangible Power Loss Dwindling by Canadian Yukon Cougar Optimization Algorithm","authors":"L. Kanagasabai","doi":"10.18698/1812-3368-2022-5-16-30","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-5-16-30","url":null,"abstract":"In this paper Canadian Yukon Cougar Optimization Algorithm is applied to solve the power loss lessening problem. Natural deeds of Canadian Yukon Cougar are imitated to model the Canadian Yukon Cougar optimization algorithm. Both male and female Canadian Yukon Cougar switch their positions with reference to the conditions. In the initial population superiority and Migrant classification are done. For each Canadian Yukon Cougar fitness value computed. For superiority matured male Canadian Yukon Cougar fight with other male Canadian Yukon Cougars. Succeeded male will be dominant and defeated male Canadian Yukon Cougars will become as Migrant Canadian Yukon Cougars. In Canadian Yukon Cougar population balance will be there at end of iterations, the amount of existing Canadian Yukon Cougar will be controlled. With reference to the Utmost allowed number of every gender in Migrant Canadian Yukon Cougar; the smallest amount fitness value possessed by Migrant Canadian Yukon Cougar will be removed. Rightfulness of the Canadian Yukon Cougar Optimization Algorithm is corroborated in IEEE 30 bus system (with and devoid of L-index). Actual power loss lessening is reached. Proportion of actual power loss lessening is augmented","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88874991","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

Study of the Hydrodynamic Effect on Molecular Parameters of the Isoprene Polymerization Product with the Neodymium-Containing Catalytic Complex Present 含钕催化配合物对异戊二烯聚合产物分子参数的水动力学影响研究

Herald of the Bauman Moscow State Technical University. Series Natural Sciences Pub Date : 2022-10-01 DOI: 10.18698/1812-3368-2022-5-120-138

E. Miftakhov, S. Mustafina, S. Podvalny, I. Nasyrov, V. Zakharov

{"title":"Study of the Hydrodynamic Effect on Molecular Parameters of the Isoprene Polymerization Product with the Neodymium-Containing Catalytic Complex Present","authors":"E. Miftakhov, S. Mustafina, S. Podvalny, I. Nasyrov, V. Zakharov","doi":"10.18698/1812-3368-2022-5-120-138","DOIUrl":"https://doi.org/10.18698/1812-3368-2022-5-120-138","url":null,"abstract":"The results of studying kinetic regularities in the process of obtaining polyisoprene in the presence of neodymium-containing catalytic systems for various technological modes of industrial production are presented. The process kinetic scheme is provided under conditions of the used catalyst monocenter, according to which a mathematical model of the process of isoprene polymerization for the process periodic and continuous modes is compiled. Kinetic approach to solving problems of chemical kinetics in combination with the method of moments was applied in the process mathematical description. To evaluate hydrodynamic influence exerted by the process implementation in a reactor cascade, the constructed kinetic model was supplemented with a macro-kinetic module that takes into account the relevant patterns. Features of the starting and static modes calculation in continuous production were determined. Numerical calculation methods were introduced to obtain dependences of alterations in the molecular parameters of the resulting product for a different number of reactors used in the continuous production system under static conditions. The hydrodynamic mode influence was shown in the reaction zone on the molecular weight distribution of the resulting product. As a result of computational experiments aimed at increasing the length of the reactor cascade, increase in the average molecular weights and approximation of the obtained values to the those characterizing the process periodic mode were noted","PeriodicalId":12961,"journal":{"name":"Herald of the Bauman Moscow State Technical University. Series Natural Sciences","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86619739","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