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Physical-Chemical Kinetics in Gas Dynamics最新文献

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Thermal-aerodynamiccharacteristicsof staggered mixed tubes bundle composed of circular and drop-shaped tubes 由圆形管和水滴形管组成的交错混合管束的热空气动力学特性
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.23.2.987
R. Deeb
{"title":"Thermal-aerodynamiccharacteristicsof staggered mixed tubes bundle composed of circular and drop-shaped tubes","authors":"R. Deeb","doi":"10.33257/phchgd.23.2.987","DOIUrl":"https://doi.org/10.33257/phchgd.23.2.987","url":null,"abstract":"The purpose of this study is to clarify heat transfer and fluid flow behavior across six-row mixed tubes bundles. The tubes bundle is consisting of circular and drop-shaped cross-sections in a staggered arrangement. The Reynolds number Re for the flow is varied from 1.78 × 10 3 to 18.72 × 10 3 . Six cases of the mixed tubes bundle are considered. The results of the mixed tubes bundles are compared with those of the circular (case I) and drop-shaped ones (case II). ANSYS Fluent soft-ware package is utilized to simulate the convective heat transfer and aerodynamic. The results of the numerical simulation showed that the cross-sectional shape of the tubes and their location in the bundle significantly affect the heat transfer and pressure drop in the bundle. Case IV (circular tubes in the 1 st , 3 rd , 5 th rows, and drop-shaped tubes in the 2 nd , 4 th , 6 th rows) increases the average-Nusselt number Nu (cid:2911)(cid:2932) by about 1 ÷ 8 % and 48 ÷ 49 % compared to that of the circular and drop-shaped tubes bundle, respectively. Case VII (drop-shaped tubes in the 1 st , 2 nd , 4 th , 6 th rows, and circular tubes in the 3 rd , 4 th rows) has the lowest friction factor 𝑓 compared to the other cases of circular and mixed tubes bundles. Moreover, the maximum values of the thermal-hydraulic performance 𝜀 are achieved in the case IV at Re = 1.78 × 10 3 and the case VII at Re > 1.78 × 10 3 , which were about 15 % and (2 ÷ 5) %, respectively, higher than those obtained for the drop-shaped tubes bundle. Generalized correlations for Nu (cid:2911)(cid:2932) , 𝑓 , and 𝜀 for the studied mixed tubes bundles were predicted.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"7 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":"133820000","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
Analysis of the Causes of the Inverse Population of Atomic Argon Levels in Condensing Supersonic Flows of Mixtures 压缩超声速混合流动中原子氩能级反分布的原因分析
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.23.3.994
A. Zarvin, V. Madirbaev, K. Dubrovin, A. S. Yaskin
{"title":"Analysis of the Causes of the Inverse Population of Atomic Argon Levels in Condensing Supersonic Flows of Mixtures","authors":"A. Zarvin, V. Madirbaev, K. Dubrovin, A. S. Yaskin","doi":"10.33257/phchgd.23.3.994","DOIUrl":"https://doi.org/10.33257/phchgd.23.3.994","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"23 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":"115069632","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
Intensification of Heat Transfer in Heat Exchangers with Diffuser Channels 带扩散器通道换热器的强化传热研究
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.24.2.1030
A. Reshmin, V. G. Lushchik, M. S. Makarova
{"title":"Intensification of Heat Transfer in Heat Exchangers with Diffuser Channels","authors":"A. Reshmin, V. G. Lushchik, M. S. Makarova","doi":"10.33257/phchgd.24.2.1030","DOIUrl":"https://doi.org/10.33257/phchgd.24.2.1030","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"300 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":"132862523","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 Aerodynamics of Simple Geometries Using Approximate Calculation of Flow through the Facet of the Computational Cell Using the AUSM±up2 Method 采用AUSM±up2方法近似计算计算单元面流动的简单几何空气动力学数值模拟
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.23.1.983
I. A. Koryukov, P. Silvestrov
{"title":"Numerical Simulation of Aerodynamics of Simple Geometries Using Approximate Calculation of Flow through the Facet of the Computational Cell Using the AUSM±up2 Method","authors":"I. A. Koryukov, P. Silvestrov","doi":"10.33257/phchgd.23.1.983","DOIUrl":"https://doi.org/10.33257/phchgd.23.1.983","url":null,"abstract":"A three-dimensional distribution of a high-velocity gas flow around simple geometric models on an unstructured grid was calculated. The obtained results were verified. It was realized by using HySol computer code and UST3D family of computer codes, which implement the donor cell method and schemes of the AUSM family of algorithms for calculating flows through the facet of the computational cell. These codes were developed in IPMech RAS. They are based on the model of a viscous compressible heat-conducting gas, which is described by a spatial non-stationary system of Navier − Stokes equations, solved on three-dimensional un-structured tetrahedral meshes.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"3 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":"133105654","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 modeling of shock-wave interaction with a laminar boundary layer during hypersonic flow around models with a kink 高超声速绕流模型中激波与层流边界层相互作用的数值模拟
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.20.4.892
S. Surzhikov
{"title":"Numerical modeling of shock-wave interaction with a laminar boundary layer during hypersonic flow around models with a kink","authors":"S. Surzhikov","doi":"10.33257/phchgd.20.4.892","DOIUrl":"https://doi.org/10.33257/phchgd.20.4.892","url":null,"abstract":"A series of experimental data obtained at the Calspan-UB Research Center (CUBRC), and related numerical calculations performed by participants of the working group of testing computer codes, were used to validate the author's computer code PERAT-2D. The problems of flowing by hypersonic flows of molecular nitrogen of a sharp and blunt cone with a kink are considered, as well as the problem of flowing around a hollow cylinder with a sharp edge and an expanding skirt.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"17 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":"116639929","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
On the Method for Estimating the Integral Characteristics of a Generic Scramjet with an Integrated Propulsion System 基于集成推进系统的通用超燃冲压发动机整体特性估算方法研究
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.24.1.1017
R. Seleznev
{"title":"On the Method for Estimating the Integral Characteristics of a Generic Scramjet with an Integrated Propulsion System","authors":"R. Seleznev","doi":"10.33257/phchgd.24.1.1017","DOIUrl":"https://doi.org/10.33257/phchgd.24.1.1017","url":null,"abstract":"This paper describes the method for estimating the integral characteristics of a generic scramjet with an integrated pro-pulsion system. Calculations of the specific impulse and heat fluxes in the propulsion system for the X-43 and X-51 generic scramjets have been carried out. The results obtained are in good agreement with the estimates of other authors (in the speed range 5 < M < 10), as well as with the known graphs of the dependence of the specific impulse for various types of engines depending on the flight Mach number","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"160 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":"121687594","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
Investigation of Convective Heat Transfer Simula-tion Accuracy in Subsonic High-Enthalpy Air Flows in HF-Plasmatron 高频等离子体亚音速高焓气流对流换热模拟精度研究
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.21.2.905
S. A. Vasil’evskii, A. Kolesnikov, V. Sakharov
{"title":"Investigation of Convective Heat Transfer Simula-tion Accuracy in Subsonic High-Enthalpy Air Flows in HF-Plasmatron","authors":"S. A. Vasil’evskii, A. Kolesnikov, V. Sakharov","doi":"10.33257/phchgd.21.2.905","DOIUrl":"https://doi.org/10.33257/phchgd.21.2.905","url":null,"abstract":"Numerical estimations of correspondence between stagnation point heat fluxes to a cylindrical model in subsonic high-enthalpy air jet in HF-plasmatron and entry heating a blunt body in Earth atmosphere are performed in the case, when thermodynamic and hydrodynamic parame-ters of these absolutely different flows are in one-to-one correlation according to the concept of local heat transfer simulation. For cold wall case similarity of normalized heat fluxes is nu-merically confirmed in the whole range of a catalytic recombination coefficient, when conditions of local heat transfer simulation are satisfied. Through CFD modeling performed for HF-plasmatron subsonic tests and corresponding atmospheric entry conditions it is proved, that temperatures of radiative equilibrium surfaces of a model and blunt body are in a good and ac-ceptable agreement for high and low catalytic walls.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"15 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":"125181763","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
Features of the Energy Exchange Process in a Clustered Argon Stream at the Initiation of Radiation by an Electron Beam 电子束辐射起始时聚集氩气中能量交换过程的特征
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.23.4.1007
K. Dubrovin, A. Zarvin, Y. Gorbachev, A. S. Yaskin, V. Kalyada
{"title":"Features of the Energy Exchange Process in a Clustered Argon Stream at the Initiation of Radiation by an Electron Beam","authors":"K. Dubrovin, A. Zarvin, Y. Gorbachev, A. S. Yaskin, V. Kalyada","doi":"10.33257/phchgd.23.4.1007","DOIUrl":"https://doi.org/10.33257/phchgd.23.4.1007","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"58 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":"129510154","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
Dispersion, Photochemical Conversion and Bioaccumulation of Pollutants near Highway 高速公路附近污染物的扩散、光化学转化和生物积累
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.22.4.943
G. Gerasimov
{"title":"Dispersion, Photochemical Conversion and Bioaccumulation of Pollutants near Highway","authors":"G. Gerasimov","doi":"10.33257/phchgd.22.4.943","DOIUrl":"https://doi.org/10.33257/phchgd.22.4.943","url":null,"abstract":"Road traffic is one of the most significant sources of air pollution in urban areas, leading to serious environmental, economic and social problems. The most toxic components of road traffic emissions are oxides of carbon, sulfur and nitrogen, hydrocarbons, aerosol particles, polycyclic aromatic hydrocarbons, heavy metals and dioxins. Several other toxic components are formed in the area of influence of the highway during the daytime due to photochemical processes. This paper provides an analysis of various physical, chemical and biochemical processes that occur near the highway and lead to the transformation of pollutants and their interaction with the environment.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"68 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":"115675287","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
Thickness of the Stationary Detonation Wave in a Mixture of Oxyhydrogen Gas with Nitrogen 氧-氢-氮混合气中静止爆震波的厚度
Physical-Chemical Kinetics in Gas Dynamics Pub Date : 1900-01-01 DOI: 10.33257/phchgd.19.3.768
Y. Tunik, P. V. Kozlov, V. Mayorov
{"title":"Thickness of the Stationary Detonation Wave in a Mixture of Oxyhydrogen Gas with Nitrogen","authors":"Y. Tunik, P. V. Kozlov, V. Mayorov","doi":"10.33257/phchgd.19.3.768","DOIUrl":"https://doi.org/10.33257/phchgd.19.3.768","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"21 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":"126902408","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
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