Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)最新文献

{"title":"Solid catalysts for waste water treatment through liquid phase oxidation","authors":"N. M. Dobrynkin, M. V. Batygina, A. S. Noskov","doi":"10.1109/KORUS.1999.876208","DOIUrl":"https://doi.org/10.1109/KORUS.1999.876208","url":null,"abstract":"","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122099398","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":"Volume discharge in the gap with moving barrier","authors":"V. Dedkov, V. R. Kukhta, V. Lopatin, V.V. Patzevich","doi":"10.1109/KORUS.1999.876274","DOIUrl":"https://doi.org/10.1109/KORUS.1999.876274","url":null,"abstract":"An analysis of current features in the gap with immovable electrodes and a moving barrier at a constant voltage is made. Equivalent circuits of discharge gap for constant and pulse components of the discharge current are proposed. Experimental results of studies of discharge current pulsed component are presented.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128640496","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":"Intensification of heat transfer at laminar stabilized flow of vapour-droplets in a tube","authors":"V. Terekhov, A.V. Chichindaev, M. Pakhomov","doi":"10.1109/KORUS.1999.875870","DOIUrl":"https://doi.org/10.1109/KORUS.1999.875870","url":null,"abstract":"The numerical calculation heat- and mass transfer of a flow containing dispersed in liquid particles by a diameter 1...1000 microns is executed under normal physical conditions for laminar flow of a mode of. As a results of calculations the temperatures (gas vapour mixture and droplets), diameter of a drop both mass concentration vapour and liquids were defined. The decision includes distribution of temperature air-vapour flow and drops of a liquid in a boundary layer and takes into account evaporation of drops. The results of calculations on model for single-phase current coincide with well-known results of analytical and numerical calculations. The comparison of the developed model of numerical heat- and mass transfer with theoretical works, available in this area, is made and the satisfactory coordination is received.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132161296","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":"Ignition impulses forming modes research in the combined start-up device of electrojet plasma thruster (EJPT)","authors":"N.M. Katasonov, M. Mikhailov, A. Chernyshev","doi":"10.1109/KORUS.1999.876275","DOIUrl":"https://doi.org/10.1109/KORUS.1999.876275","url":null,"abstract":"The ignition impulses forming modes in the combined start-up device EJPT is researched. The more rational variant selected from several schemes. The ignition impulses forming feature in the combined start-up device is the use for ignition of the energy collected in the limited throttle of the cathode heater power supply (CHPS). In this case, two main problems appeared: firstly, it is necessary to form the ignition impulse with required parameters, not exceeding the throttle energy; and, secondly, to distribute the excess throttle energy. For this purpose the scheme has been designed with excess energy reset to the output filter of the discharge power supply (DPS). The scheme is researched in three modes (low conductivity mode, high conductivity mode and short circuit in the load) by PSPICE 5.2 applied programs. The performance principle described. The currents and voltage diagrams on the base parts were shown. The forming possibility of required supply modes of heater cathode (HC) and ignition electrode (IE) from a common supply is shown.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125581559","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":"Computational study of 3D problems of supersonic aerodynamics on the basis of Euler equations","authors":"V. Volkov, A. Zheltovodov, E.K. Derunov, M. Loginov","doi":"10.1109/KORUS.1999.875858","DOIUrl":"https://doi.org/10.1109/KORUS.1999.875858","url":null,"abstract":"The results of numerical computations of three-dimensional supersonic flows in the vicinity of different configurations on the basis of the Euler equations are presented. The flowfield properties, surface pressure and lift coefficient variations for different wing configurations with subsonic and supersonic sharp-leading edges are analyzed-in wide range of the angles of attack /spl alpha/=0-14/spl deg/ and Mach number M/sub /spl infin//=2,25-4. The sonic-boom-parameters for the supersonic civil transport Tu-144 are estimated. The supersonic flows over the bodies of revolution in the presence of flat and curved surfaces are considered. A comparison of the computations with experimental data are demonstrated.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121311358","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":"Total cross section measurement of Dy in the energy region 0.01 eV/spl sim/10 keV","authors":"S. Ko, G.N. Kim, K. Kobayashi, H.J. Cho","doi":"10.1109/KORUS.1999.876221","DOIUrl":"https://doi.org/10.1109/KORUS.1999.876221","url":null,"abstract":"The neutron spectrum from the Ta-target neutron source from the 46-MeV linac at the Research Reactor Institute, Kyoto University is measured by the time-of-flight method. Bursts of fast neutrons were produced using the water-cooled photoneutron target made of Ta plates. Transmissions of neutron beam were measured by the /sup 6/Li glass scintillator located at the 22.13-m distance from the photoneutron target and background neutron was detected by BF/sub 3/ proportional counter. Neutron signals from detectors were transferred into fast amplifier, discriminator and analyzed in the 8191-channel analyzer which was operated as four 2048-channel analyzer. The neutron total cross section for dysprosium in the energy region 0.01 eV/spl square/10 keV was derived, and also compared with ENDF/B-/spl square/ and experimental data.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126097003","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":"Mathematical modelling of supersonic turbulent separated flows in the vicinity of forward- and backward-facing steps","authors":"I. Bedarev, N. Fedorova","doi":"10.1109/KORUS.1999.875874","DOIUrl":"https://doi.org/10.1109/KORUS.1999.875874","url":null,"abstract":"The accurate prediction of turbulent flows where the separation occurs as a result of shock wave/boundary layer interaction, is very important for the applications as well for understanding the physics of boundary layer separation. In the paper the results of computations are presented for steady-state supersonic turbulent flows in the vicinity of the plane corner configurations at M=2-5. All the calculations were carried out in a condition of real physical experiments. The Favre-averaged Navier-Stokes equations were used as a mathematical model with turbulence incorporated using two-equation Wilcox turbulence model. The implicit scheme of splitting according to the space directions is used for the time discretization. It is realized by a scalar sweeps. The TVD-type schemes based on flux vector splitting are used to approximate the inviscid fluxes derivatives.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130151266","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 calculation of the three-dimensional boundary layer at the turn of the flow on the circular sector","authors":"M. Kraev, A. Kishkin, D. Chernenko, M.G. Melkozerov","doi":"10.1109/KORUS.1999.875867","DOIUrl":"https://doi.org/10.1109/KORUS.1999.875867","url":null,"abstract":"The considerable range of problems, connected with the motion of the flow in the flowing part of flying machine engines, is connected with the possibility of the boundary layer equation integration along the complex surface with transverse pressure gradient. For the choice of the solution method and for the construction of the calculation algorithm the three-dimensional boundary layer (TDBL) momentum's equations system need to result in a form which is defined on variables and permits one to conduct both the numerical integration in the common case and analytical analysis in individual cases.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131527659","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":"Development of ABS using HILs","authors":"S.T. Park, S.Y. Yang, I.-S. Scol, K.-S. Cho","doi":"10.1109/KORUS.1999.875910","DOIUrl":"https://doi.org/10.1109/KORUS.1999.875910","url":null,"abstract":"An efficient simulation platform for the development of anti-lock brake system (ABS) is presented. To reduce computational burden due to the rigidity of hydraulic unit comprising brake system, the actual hydraulic brake assembly is taken .from the target vehicle and integrated to a virtual 18-DOF-vehicle dynamics model. The latter is used to describe dynamics of the target vehicle under extreme maneuvers. Thus HILS allows the investigation of not only the dynamic behavior, but also hydraulic response of the vehicle with a complete assess to all system parameters and state variables. Introduction Tuning the control algorithm of ABS, most manufacturers of ABS have relied on road tests, especially in winter. The technique has some limitations: cost, the period of development, safety and so on. Also, it can not define control parameters quantitatively. In many cases of the road tests, the tuning of parameters depends on a driver's experiences or interjection. Also the road tests could not be performed under uniform condition; for example, pressure of brake pedal, friction coefficient and so on. More complicate the structure of modulator is, more difficult the modeling of hydraulic brake system is. To solve those problems, HILS (Hardware in the Loop System) is suggested. The simulation platform consists of a virtual vehicle dynamic model and a real brake system. The real brake system is used to reduce computational burden due to the rigidity of a hydraulic unit. Consequently, it is shown that the results of the simulation almost coincides with those of the road tests. Construction of the HILS The vehicle under consideration is modeled on 18 DOF system from AUTOSIM. It employes Macperson strut front suspension and a typical steering system. The steering system is modeled on 6-bar linkage with Ackermann geometry. [21[31 The front suspension model is simplified as a spring and damper system with closed kinematics chains. To reduce the computational burden, the tension bar is removed, and the joint has unique rotation movement. r41 The HILS is made up with three modules, namely, hydraulic module, DSP module and ABS ECU. Hydraulic module: Hydraulic module is a modified brake system to maintain same conditions in every test. An air cylinder is applied instead of brake pedal because it can give same brake pressure every test. And the hydraulic modulator, which is adapted in HILS, is a commercial solenoidsolenoid type one. To pick up the variation of brake pressure at wheel, a strain gauge type sensors is set up at each wheel. DSP module: This module is used to generate wheel speed signals, which is calculated from pressure signal and to operate the virtual vehicle dynamic model. It consists of four parts, DSP 8 0-7803-5729-9/99/$10.00 O 1999 IEEE KORUS’99 220 Information Systems and Technologies board, I/O card, LAN card and host PC. The DSP board contains vehicle dynamic model. The I/O card receives 4 signals from pressure sensors and generates 4 wheel spee","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133765931","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":"Unsteadiness of the flow rate of the gas passing through gas-dynamic tracts with contour discontinuities","authors":"A. A. Kuraev, A. P. Petrov","doi":"10.1109/KORUS.1999.875863","DOIUrl":"https://doi.org/10.1109/KORUS.1999.875863","url":null,"abstract":"Apart from usual noise caused by a free air stream, the operation of wind tunnels with an open test section is accompanied by the excitation of periodic fluctuations of pressure and flow rate, which increase with the flow velocity. To verify the fact that the vortices pass through the throat, Schlieren pictures of the flow in a plane model were taken. The vortices generated in the subsonic section of the channel come into the throat. For a symmetric inflow, the vortices pass from below and from above with an equal probability. Judging by the behavior of the characteristics passing from the channel generatrices, the velocity of vortices coincides with the flow velocity.","PeriodicalId":250552,"journal":{"name":"Proceedings Third Russian-Korean International Symposium on Science and Technology. KORUS'99 (Cat. No.99EX362)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134018790","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}