{"title":"Calculated Initial Data for Solving Test Problems in the Measuring Section of the Hypersonic Shock Wind Tunnel (HSWT) of the RadGD Laboratory of IPMech RAS","authors":"S. Surzhikov","doi":"10.33257/phchgd.22.1.931","DOIUrl":"https://doi.org/10.33257/phchgd.22.1.931","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"53 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":"114812281","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}
A. Kondrashov, M. M. Goncharov, A. Ogleznev, I. Sboev
{"title":"Heat Transfer and Orientation Effects in the Problem of Partially Heated Coaxial Cylinders","authors":"A. Kondrashov, M. M. Goncharov, A. Ogleznev, I. Sboev","doi":"10.33257/phchgd.20.2.824","DOIUrl":"https://doi.org/10.33257/phchgd.20.2.824","url":null,"abstract":"This paper reports the results of numerical simulation of a steady-state convective flow of in-compressible fluid in the gap between two coaxial cylinders. We assume that only half of the inner cylinder is heated, and the external cylinder is kept at constant temperature. It has been established that the rotation of the heater through a certain angle causes the convective plume axis to deviate. This strongly affects the flow pattern and the related heat transfer process. The dependence of the position of the temperature maximum near the surface of the outer cylinder on the orientation of the heated portion of the surface of the inner cylinder is detected.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"20 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":"124229702","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}
S. Lavrentyev, N. Solovyov, A. Shemyakin, M. Yakimov
{"title":"Laser-Induced Streams in Liquids Depending on Focusing Conditions of Pulse-Periodic Femtosecond Laser Radiation","authors":"S. Lavrentyev, N. Solovyov, A. Shemyakin, M. Yakimov","doi":"10.33257/phchgd.20.3.852","DOIUrl":"https://doi.org/10.33257/phchgd.20.3.852","url":null,"abstract":"The paper is devoted to generation and observing quasi-stationary flows under the effect of the focused pulse-periodic femtosecond laser radiation on liquid solvents: water, heavy water, al-cohols, ketones, chlormetanes. The mechanism inducing directional flows appears to be directional collapse of the gas bubbles produced by multiphoton dissociation in a focused laser beam. Formation of the flows had being observed with schlieren technique and or framing small gas bubbles illuminated by visible laser beam converted to the line. Absorption coeffi-cients of focused and unfocused femtosecond laser radiation in the fluids were also measured. In experiments with laser pulses of 450 fs at 1.023 nm wavelength with pulse energy from 10 to 220 uJ and repetition rate 1.43 ÷ 10 kHz stationary flows of fluids were originated from the laser beam waist directed along or transversely (in most cases) to the laser beam. The streams along the laser axis in both directions were observed under low pulse power (10 ÷ 20 uJ) pro-vided precise lens adjustment without astigmatism or self-focusing. The tests show that single beam waist of 10 ÷ 20 um in diameter and 100 ÷ 200 um long generates two narrow jets along the beam axis in both directions from the waist. Lens displacement transversely to the beam leads to splitting beam waist in two astigmatic foci. Both foci generate axial flows directed toward each other that collide in the gap between foci, forming synthetic transverse flow. The increase of the pulse energy and focal point intensity were followed by nonlinear self-focusing forming filament like beam waist up to 14 mm long. Repeating cycles of self-focusing and defocusing produce several energy deposition zones along the filament beam waist, each one generating separate streams along the beam axis. Colliding of the contra-directed streams gave rise to complex flow pattern along and transversely to the beam axis.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"20 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":"120944767","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}
{"title":"Review of the Experimental Methods of Critical Ionization Velocity Investigation","authors":"D. Yatsukhno","doi":"10.33257/phchgd.23.5.947","DOIUrl":"https://doi.org/10.33257/phchgd.23.5.947","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"116 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":"117065109","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}
{"title":"On thedevelopment of the interactive information and modeling system for gas dynamics and multidisciplinary research","authors":"P. Silvestrov, O. Bessonov, A. Rybakov","doi":"10.33257/phchgd.22.4.948","DOIUrl":"https://doi.org/10.33257/phchgd.22.4.948","url":null,"abstract":"This paper describes the general idea and implementation of the improved Interactive information and modeling system (IIMS) – an integrated environment that combines computational modules for modeling aerodynamics and aerothermodynamics of re-entry space vehicles with a large collection of various information materials on this topic. The paper describes and illustrates changes to the internal architecture and interface of the system. Examples of computation and information windows are presented together with the integrated visualization system. The sys-tem has a unified implementation for Windows and Linux operation systems and can be deployed on any modern high-performance personal computer. Support of personal computers based on the Elbrus architecture has also been implemented.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"45 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":"126785836","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}
{"title":"The Study of the Flow Structure in the Scramjet Inlet-Isolator with Throttle","authors":"R. Seleznev","doi":"10.33257/phchgd.20.3.853","DOIUrl":"https://doi.org/10.33257/phchgd.20.3.853","url":null,"abstract":"Non-stationary process in a scramjet inlet-isolator with the mechanical throttle is modeled. Fields of velocity, pressure, and temperature are calculated by Three -dimensional computational model based on unsteady governing equations including Navier ‒ Stokes equations, energy conservation and diffusion equations together with system of chemical kinetic equations. Two-dimensional temperature, pressure and velocity visualization are presented. Method of the numerical simulation and details of the problem under consideration are presented in [1–6]. Schematic of the model of the inlet/isolator model mounted on the wind tunnel floor Pressure distribution within the experimental setup 20 ms","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"1 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":"126896549","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}
{"title":"On the Possibility of Using the Penning Discharge to Study the Phenomenon of the Critical Ionization Velocity","authors":"S. Surzhikov","doi":"10.33257/phchgd.23.5.1021","DOIUrl":"https://doi.org/10.33257/phchgd.23.5.1021","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"55 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":"132775934","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}
{"title":"Gasdynamics Aspects of the Heat Transfer Experiment with the UHTC Surface in Under-Expanded Dissociated Air Jet","authors":"A. Kolesnikov, V. Sakharov","doi":"10.33257/phchgd.23.6.1025","DOIUrl":"https://doi.org/10.33257/phchgd.23.6.1025","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"262 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":"133630884","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}
{"title":"2D computer model of a non-stationary corona from an infinite grating composed of parallel grounded wires in a thundercloud electric field","authors":"M. Mokrov, Y. Raizer","doi":"10.33257/phchgd.21.2.920","DOIUrl":"https://doi.org/10.33257/phchgd.21.2.920","url":null,"abstract":"This paper deals with a non-stationary corona developing in free space from a plane-parallel infinite periodic system of grounded wires suspended at the same height in a growing uniform thundercloud electric field. The discharge is described by the continuity equation for positive ions and electrostatic equation for the electric field induced by wire charges and ion space charge. These equations were solved using a two-dimensional computer program, which was developed in this study and then used to calculate the corona current, the distribution of the space charge generated by the corona, and the potential distribution in space surrounding the wires. The obtained characteristics of the corona may be of interest for the purpose of increasing the reliability of lightning protection wires.","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"6 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":"131015990","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}
{"title":"Modelling of Syngas/Air Laser-Induced Ignition with the State-to-State Vibrational Kinetics Taken into Consideration","authors":"I. N. Kadochnikov","doi":"10.33257/phchgd.22.6.961","DOIUrl":"https://doi.org/10.33257/phchgd.22.6.961","url":null,"abstract":"","PeriodicalId":309290,"journal":{"name":"Physical-Chemical Kinetics in Gas Dynamics","volume":"57 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":"130538776","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}