ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)最新文献_第2页

Pressure-sensitive-paint measurements in a large-scale commercial-engine test stand 大型商用发动机试验台的压敏涂料测量

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827161

J. Jordan, A. Watkins, John C. P. N. Davis, William L. Weaver, G. Dale, K. Navarra, J. R. Urban, W. Devoid, R. A. Strange

引用次数: 8

Feasibility of airfoil tests with a small high subsonic cryogenic wind tunnel 小型高亚音速低温风洞翼型试验的可行性

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827174

Y. Yamaguchi, M. Kashitani, K. Kaibara, T. Saito

{"title":"Feasibility of airfoil tests with a small high subsonic cryogenic wind tunnel","authors":"Y. Yamaguchi, M. Kashitani, K. Kaibara, T. Saito","doi":"10.1109/ICIASF.1999.827174","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827174","url":null,"abstract":"A cryogenic wind tunnel has a capability to perform relatively high Reynolds number airfoil testing using a small airfoil model. However, it is desirable to use a model as large as possible to utilize the high Reynolds number flow capability of the cryogenic wind tunnel. The most serious problem on the airfoil testing is the tunnel sidewall interference. As the NDA cryogenic tunnel has a very narrow width, and the possible shortest chord length of model is 0.06 m with our present fabricating method, the aspect ratio of models for the present tunnel is only up to 1.0. The Barnwell-Sewall and the Murthy methods are the readily available corrections, and were applied to the experimental pressure distributions of airfoils which have aspect ratios less than unity in order to evaluate feasibility of airfoil tests with models of such low aspect ratios, and to contribute to the database on the wind tunnel testing techniques. From the experimental study, the simple global correction to the main stream conditions still works in some degree for the experimental data of low aspect ratio cases. This result may support the feasibility of airfoil tests with models of low aspect ratios as first order tests.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"82 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":"127602950","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

Implementing pressure-sensitive paint in the AFRL subsonic aerodynamic research laboratory 在AFRL亚音速气动研究实验室实施压敏涂料

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827160

G. A. Dale, H. D. Baust, G.A. Clinehens

引用次数: 3

Vortical flow field investigation using a two-component pressure sensitive paint at low speed 双组份压敏涂料低速旋涡流场研究

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827159

M. Merienne, F. Bouvier

引用次数: 6

Phosphor thermometry for high temperature gas turbine applications 用于高温燃气轮机的磷光体测温

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827145

J. Feist, A. Heyes, Kwang-Leong Choy, B. Su

{"title":"Phosphor thermometry for high temperature gas turbine applications","authors":"J. Feist, A. Heyes, Kwang-Leong Choy, B. Su","doi":"10.1109/ICIASF.1999.827145","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827145","url":null,"abstract":"In the paper developments and some preliminary experiments concerning the application of thermographic phosphors for surface temperature and heat flux measurements in gas turbine combustion chambers are presented. When illuminated with UV light (typically from a pulsed laser) these material exhibits phosphorescence, which is temperature dependent by virtue of variations in the relative intensity of distinct emission lines or of variations in the time constant of the exponential emission decay which occurs once excitation has ceased. Both modes of sensitivity have been investigated with a range of phosphors including are YAG:Tb, YAG:Dy and Y/sub 2/O/sub 3/:Eu. Of these YAG:Dy has been shown to be best suited to measurements in combustion chambers. It is sensitive to temperatures in the range 300 to 1500 K, emits light in the blue green region of the spectrum where blackbody radiation is relatively weak and exhibits both modes of sensitivity. In addition a number of techniques for laying down phosphor coatings on metal substrates are reviewed and an experimental investigation of two techniques is presented Firstly, the use of chemical binders similar to those used in thermal paints and, secondly, a new cost effective coating technique referred to as Electrostatic assisted Combustion Chemical Vapour Deposition (EACVD) which has been developed in the Materials Department at Imperial College. The latter allows thin layers of phosphors to be laid down without the need for a chemical binder and with close control of coating composition and thickness. To demonstrate the technique a 2 /spl mu/m thick layer of Y/sub 2/O/sub 3/:Eu has been laid down on a nimonic substrate and a performance comparison made with a similar coating laid down using the alternative chemical binder technique. The EACVD coating has been shown to be more robust than those laid down with chemical binders whilst the coating shows similar temperature sensitivity.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"2 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":"114662366","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: 43

Performance studies of the constant voltage anemometer in a Mach 2.3 boundary layer 恒压风速计在2.3马赫边界层中的性能研究

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827180

G. Comte-Bellot, G. R. Sarma, T. Faure, J. Dussauge, P. Dupont, J. Debiève

{"title":"Performance studies of the constant voltage anemometer in a Mach 2.3 boundary layer","authors":"G. Comte-Bellot, G. R. Sarma, T. Faure, J. Dussauge, P. Dupont, J. Debiève","doi":"10.1109/ICIASF.1999.827180","DOIUrl":"https://doi.org/10.1109/ICIASF.1999.827180","url":null,"abstract":"The operational features of the Constant Voltage Anemometer (CVA) are shown to be well adapted for measurements in supersonic flows. The time constant of hot-wire under constant voltage operation is verified to be much smaller than that under constant current operation. Good noise immunity feature of the constant voltage operation with large bandwidth of the CVA circuit were also noticed from the experiments. An extensive investigation has been conducted in a Mach 2.3 boundary layer. The software compensation approach described in an earlier study is again applied to the data in the present experiments. The approach of compensating the CVA for the hot-wire time constant partially with hardware during the experiment and later correcting the CVA output with the actual in-situ measured time constant has produced consistently good results with an increased bandwidth. The turbulence levels estimates deduced from CVA data collected at different wire overheats agree well with earlier published results. Comparisons with the Constant Current Anemometer (CCA) and the Constant Temperature Anemometer (CTA) were conducted in the same experimental conditions.","PeriodicalId":291132,"journal":{"name":"ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025)","volume":"5 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":"127135980","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: 10

A new approach to measuring model deflection 一种测量模型挠度的新方法

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827173

R.K. van der Draai, R.P.M. van Schinkel, A. Telesca

引用次数: 3

An optical technique for detecting fatigue cracks in aerospace structures 航空结构疲劳裂纹检测的光学技术

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827167

D. Banaszak, Gary A. Dale, A. N. Watkins, Jeffrey Jordan

引用次数: 21

Pressure and temperature measurements with a dual-luminophor coating 压力和温度测量双发光涂层

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827158

B. Carroll, J. Hubner, K. Schanze, J. Bedlek, M. Morris

引用次数: 2

Quantitative flow field measurements in a catapult facility using particle image velocimetry 用粒子图像测速法定量测量弹射装置中的流场

ICIASF 99. 18th International Congress on Instrumentation in Aerospace Simulation Facilities. Record (Cat. No.99CH37025) Pub Date : 1999-06-14 DOI: 10.1109/ICIASF.1999.827140

L. Dieterle, K. Ehrenfried, R. Stuff, G. Schneider, P. Coton, J. Monnier, J. Lozier

引用次数: 10