ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)最新文献

筛选
英文 中文
Multiple point dynamic gas density measurements using molecular Rayleigh scattering 多点动态气体密度测量使用分子瑞利散射
R. Seasholtz, J. Panda
{"title":"Multiple point dynamic gas density measurements using molecular Rayleigh scattering","authors":"R. Seasholtz, J. Panda","doi":"10.1109/ICIASF.1999.827183","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827183","url":null,"abstract":"A nonintrusive technique for measuring dynamic gas density properties is described. Molecular Rayleigh scattering is used to measure the time-history of gas density simultaneously at eight spatial locations at a 50 kHz sampling rate. The data are analyzed using the Welch method of modified periodograms to reduce measurement uncertainty. Cross-correlations, power spectral density functions, cross-spectral density functions, and coherence functions may be obtained from the data. The technique is demonstrated using low speed co-flowing jets with a heated inner jet.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130348195","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: 6
Doppler global velocimetry: accuracy tests in a wind tunnel 多普勒全球测速:风洞精度测试
C. Lempereur, P. Barricau, JM. Mathé, A. Mignosi
{"title":"Doppler global velocimetry: accuracy tests in a wind tunnel","authors":"C. Lempereur, P. Barricau, JM. Mathé, A. Mignosi","doi":"10.1109/ICIASF.1999.827148","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827148","url":null,"abstract":"A one-component Doppler Global Velocimeter has been designed and tested in an empty wind tunnel generating a perfectly calibrated flow. Most of the technical choices involving light sheet generation, optical components, cameras, iodine cell, are described and argued, as well as geometrical calibration and processing steps. A specific device has been developed, but not yet described, to relax constraints on the stabilization of laser frequency and iodine cell temperature. Velocity maps obtained by this D.G.V. system are compared to the known Mach number. These promising results show the interest of following such a procedure to qualify and optimize a prototype.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117327072","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: 7
New ONERA set-ups for the characterization of the resistance of materials to liquid and solid impacts 用于表征材料对液体和固体冲击的阻力的新ONERA装置
A. Deom, M. Lemistre, D. Balageas
{"title":"New ONERA set-ups for the characterization of the resistance of materials to liquid and solid impacts","authors":"A. Deom, M. Lemistre, D. Balageas","doi":"10.1109/ICIASF.1999.827169","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827169","url":null,"abstract":"ONERA has been involved in rain erosion studies since 1973. Rotating arms were used firstly to characterize the resistance of materials with droplet velocities in the range 200-300 m/s. In the 1990's, the Cavendish Laboratory developed a new apparatus, called MIJA (Multiple Impact Jet Apparatus), which can automatically produce water jets at high velocities. ONERA has been using a MIJA apparatus since 1994. The set-up was first validated in the range 200-300 m/s by comparison with rotating arm results. It is used now up to 600 m/s. The possibility of characterizing in-shape samples like radomes, as well as the determination of the influence of temperature and stress in the samples, were studied. A second water jet apparatus called SIJA, is in use since mid 1998. It allows rain erosion resistance measurements up to 1000 m/s. The possibility of characterization of material impact resistance was completed by another set-up called SPARC (Solid Particle Rebound Characterization apparatus) devoted to solid particle impact studies up to 190 m/s. Using two-dimensional laser velocimetry measurement, SPARC allows the determination of the angle and the velocity of rebound of a solid particle on a target.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127585482","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
The recent methods for surface pressure and skin friction measurements on the models 模型表面压力和表面摩擦的最新测量方法
A. Bykov, V. Kulesh, A. Orlov, V. Pesetsky
{"title":"The recent methods for surface pressure and skin friction measurements on the models","authors":"A. Bykov, V. Kulesh, A. Orlov, V. Pesetsky","doi":"10.1109/ICIASF.1999.827157","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827157","url":null,"abstract":"The authors present experimental and theoretical evaluations of the ultimate measurement possibilities and application fields of PSP technology and mechanical skin friction gages. PSP provides visualization and measurement of the pressure distribution on a model surface without the usual pressure taps. Mechanical skin friction gages have been developed for point measurements of friction stresses on the surface. The authors attempt to unite the small size of the hot-wire film gage with the possibility for direct measurements of skin friction as in balances with a floating element. The results of the evaluations are illustrated by the examples of pressure distribution measurements on the surface of different aircraft models, propeller blades in transonic and supersonic wind tunnels, and by measurements of the skin friction on the test section walls of wind tunnels and on the wing surface of the supersonic transport aircraft model.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128259864","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
Using of oscillatory conning experimental rig for separation of rotary and unsteady aerodynamic derivatives 利用振动锥实验装置分离旋转和非定常气动导数
A. Khrabrov, K. Kolinko, O. Miatov, J. Vinogradov, A. Zhuk
{"title":"Using of oscillatory conning experimental rig for separation of rotary and unsteady aerodynamic derivatives","authors":"A. Khrabrov, K. Kolinko, O. Miatov, J. Vinogradov, A. Zhuk","doi":"10.1109/ICIASF.1999.827177","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827177","url":null,"abstract":"The TsAGI's oscillatory conning experimental rig is presented. The model motion kinematics are considered. The test procedure and data processing technique are described. The unsteady aerodynamic characteristics for 70 degree delta wing at high angles of attack are presented. The experimental technique to obtain the pure unsteady aerodynamic derivatives (derivatives with respect to /spl alpha//spl dot/ and /spl beta//spl dot/) with the use of this rig is considered. The results of small amplitude forced oscillations and oscillatory conning are compared.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128724894","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: 7
Pressure sensitive paint measurements on a wing model in a low-speed wind tunnel 在低速风洞中对机翼模型的压敏油漆测量
C. Klein, R. Engler, S. Fonov, O. Trinks
{"title":"Pressure sensitive paint measurements on a wing model in a low-speed wind tunnel","authors":"C. Klein, R. Engler, S. Fonov, O. Trinks","doi":"10.1109/ICIASF.1999.827162","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827162","url":null,"abstract":"Pressure field measurements on a wing profile are conducted to evaluate the accuracy of a measurement system using the so called \"binary\" or \"two-color\" Pressure Sensitive Paint (PSP) for low-speed (40-60 m/sec) environments. A part of the wing surface was coated with a binary paint. Two different light sources, a high pressure Xenon-flash lamp and a nitrogen laser were used for the excitation of the paint. The resulting fluorescence fields were acquired by a 16-bit CCD slow-scan camera. In front of this camera two different optical devices, a filter-shifting system or alternative a beam-splitting system, each of them were equipped with appropriate optical filters to separate the two different spectral emission wavelength of the paint, were used. Results shows that this optical pressure measurement system is able to resolve the small pressure changes on the model surface. Due to model movement and model deformation in between the image acquisition of the \"wind-off\" and \"wind-on\" images the necessity to use a binary paint for precise pressure measurements is clearly visible. These PSP-System working with binary paint can achieve pressure resolution in the region of 1 mbar.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122245423","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: 4
Pressure sensitive paint for oscillating pressure fields measurements 用于振荡压力场测量的压敏涂料
S. Fonov, R. Engler, C. Klein, S. Mihailov, V. Mosharov, V. Kulesh, V. Radchenko
{"title":"Pressure sensitive paint for oscillating pressure fields measurements","authors":"S. Fonov, R. Engler, C. Klein, S. Mihailov, V. Mosharov, V. Kulesh, V. Radchenko","doi":"10.1109/ICIASF.1999.827164","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827164","url":null,"abstract":"The paper describes the main problems encountered during investigations of the oscillating pressure fields by the Fast Binary Pressure Sensitive Paint (FBPSP). This formulation has response time in the millisecond range and provides compensation of the model displacements and excitation light instability. Measurement methodology, and theoretical and experimental estimations of the FBPSP dynamic characteristics are presented. It is shown that FBPSP formulation can be used for oscillation frequencies up to 20-40 Hz but requires dynamic compensation of the resulting pressure fields. The experimental results obtained on the pitching wing model at Mach numbers 0.3 and oscillation frequencies 0 and 20 Hz are presented and discussed.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115971495","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: 12
Laser anemometer measurements in a centrifugal compressor 激光风速计在离心压缩机中的测量
N. Saddour, A. Carrere
{"title":"Laser anemometer measurements in a centrifugal compressor","authors":"N. Saddour, A. Carrere","doi":"10.1109/ICIASF.1999.827147","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827147","url":null,"abstract":"The measurement of the flowfield in vaneless and vaned diffuser of high speed centrifugal compressor is reported in this paper. The flow measurement was carried out using a laser two focus velocimeter. The blade to blade distributions of absolute velocity and angle are compared with numerical distributions. The numerical results were obtained by using three-dimensional Navier-Stokes solver. The calculations are conducted on isolated impeller in steady approach.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125628598","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
A comparative study of planar Mie and Rayleigh scattering for supersonic flowfield diagnostics 平面米氏散射与瑞利散射在超音速流场诊断中的比较研究
U. Brummund, B. Mesnier
{"title":"A comparative study of planar Mie and Rayleigh scattering for supersonic flowfield diagnostics","authors":"U. Brummund, B. Mesnier","doi":"10.1109/ICIASF.1999.827182","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827182","url":null,"abstract":"Planar Mie and Rayleigh scattering has been applied in a supersonic ramjet model combustion chamber (Scramjet chamber) which allows for the direct visualization of the fluid shear/mixing layer zone along the central axis of the combustion chamber. Hydrogen was injected parallel to the center line of the combustion chamber through holes at the base of an injector plate into a Mach 2.0 air flow. The evolution of shear/mixing layer downstream of the injector part has been visualized by laser light sheet scattering directly from the gas molecules (Rayleigh scattering) or from TiO/sub 2/ seed particles (Mie scattering). The laser-based optical techniques reveal details of the turbulent structure of the supersonic mixing process by single shot measurements and allow for the direct determination of the absolute visual shear/mixing layer thickness by averaged image processing. Compared to former experimental investigations applying the optical schlieren method significant smaller values of the absolute shear/mixing layer thickness have been measured by planar Rayleigh scattering and even smaller ones by planar Mie scattering. This difference is partly due to the different measurement techniques used and the different definitions of the shear/mixing layer thickness. Nevertheless the measured shear/mixing layer growth rates agree with previous results by other experimenters, confirming the compressibility effect of decreasing shear/mixing layer growth rates with increasing compressibility. Furthermore a slight but significant shear/mixing layer growth rate enhancement has been measured by shock/shear layer interactions.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115021300","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: 4
Particle image velocimetry to quantify 3D-flow properties of gas turbine forced mixers 颗粒图像测速法量化燃气轮机强制混合器的三维流动特性
W. Scheuerpflug, N. Lawin
{"title":"Particle image velocimetry to quantify 3D-flow properties of gas turbine forced mixers","authors":"W. Scheuerpflug, N. Lawin","doi":"10.1109/ICIASF.1999.827142","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827142","url":null,"abstract":"Forced Mixers are typically used in turbofan engines with low and medium bypass ratio to increase the cruise performance and to reduce the jet mixing noise. Most of the design criteria are still based on empirical considerations using qualitative visualisation methods such as smoke injections, or in case of water simulations with dye injection, chemical color reaction and the like. The judgement about the quality of different mixers is therefore based on visual impressions only. Since the flow fields in an engine are highly turbulent, it is nearly impossible to get a representative image of the flow with qualitative measurements. Quantification and subsequent averaging to obtain the steady state flow distribution is a necessity. The techniques used are large scale 2D-PIV to examine the axial, radial and circumferential velocity distribution at specific sections. A conductive method was used to determine the global mixing properties at the beginning and at the end of the mixing section and to deliver an empirical mixing coefficient.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123247874","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书