2 edition of Pressure-sensitive paint measurement technique development for turbomachinery application found in the catalog.
by Naval Postgraduate School, Available from National Technical Information Service in Monterey, Calif, Springfield, Va
Written in English
Pressure-sensitive paint measurement on a transonic compressor rotor required the prior development of phase-locked cumulative imaging using a disk- rotor driven by a high-speed Hamilton-Standard turbine as a developmental test- bed. The turbine was installed in a protective housing in the Gas Dynamics Laboratory and connected to an 8000 cu ft, 300 psi air supply. An hydraulic pump provided bearing lubrication. A once per revolution trigger signal was produced from a light-emitting diode and PIN photodiode pair. The imaging system consisted of an intensified CCD video camera externally triggered by the 1/rev signal via a waveform shaping circuit designed for the present application. Images were captured at camera gate speeds calculated to eliminate pixel blur and image integration times were varied to optimize image intensity and spatial resolution. Structural and modal analyses of the disk-rotor were conducted and a simplified numerical model of the flow was computed. Ratioed, colored images were produced for wheel speeds to 20,000 RPM. The effect of the radially varying stagnation temperature was evident, underscoring the importance of quantifying and accounting for the PSP temperature sensitivity so that quantitative pressure data may be obtained. Recommendations for a follow-on program are reported.
|Statement||Kevin J. Quinn|
|The Physical Object|
|Pagination||xii, 85 p. ;|
|Number of Pages||85|
For these reasons, improved techniques for the measurement of surface pressure on the turbine blade have continuously been explored and pressure sensitive paint is one of the results of these efforts. In the recent years a lot of work has been done on the development of pressure sensitive paint (PSP) and its use for various aerodynamic. J. W. Gregory: Porous pressure-sensitive paint for measurement of unsteady pressures in turbomachinery, Proc. 42nd AIAA Aerospace Sci. Meeting Exhibit, AIAA () Google Scholar Y. Sakamura, M. Matsumoto, T. Suzuki: High frame-rate imaging of surface pressure distribution using a porous pressure-sensitive paint, Meas. Sci.
1. Introduction. A recent review into pressure-sensitive paint (PSP) technologies was conducted by Kontis in which the scope and measurement range of PSP was highlighted. Several researchers have attempted to use PSP in low-speed flow despite the inherent difficulties with such applications, for example, low signal-to-noise ratios (SNR),,,,,,,,.Cited by: Basic principles of pressure-sensitive paint. PSP is an optical pressure measurement technique based on a photo-physical phenomenon of luminophores. Exciting the paint by light with a certain wavelength, the luminiphores in the paint emit light with longer wavelength, Liu and Sullivan. Another method of how the excited luminophore can Cited by: 1.
Unauthorized reprint of the contents of this database is prohibited. Copyright © , Kyushu University. All rights reserved. The development and capabilities of fast-responding pressure-sensitive paint (fast PSP) are reviewed within the context of recent applications to aerodynamic and acoustic investigations. PSP is an optical technique for determining surface pressure distributions by measuring changes in the intensity of emitted light, whereas fast PSP is an extension applicable to unsteady flows Cited by:
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Pressure-sensitivepaintmeasurementonatransoniccompressorrotorrequiredthe prior development ofphase-lockedcumulative imaging usinga disk-rotor driven by ahigh- speedHamilton-Standardturbine as a developmental test-bed.
Development of the Pressure-Sensitive Paint (PSP) Technique for Advanced Turbomachinery Applications [Kelly R. Navarra] on *FREE* shipping on qualifying offers. This is a AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH TURBINE ENGINE DIV report procured by the Pentagon and made available for public release.
Measurements are made via oxygen-sensitive molecules attached to the surface of interest as a coating, or paint. The pressure-sensitive-paint (PSP) technique is now commonly used in stationary wind-tunnel tests; this thesis presents the extension of the technique to advanced turbomachinery by: Pressure-sensitive paint measurement on a transonic compressor rotor required the prior development of phase-locked cumulative imaging using a disk- rotor driven by a high-speed Hamilton-Standard turbine as a developmental test- : Approved for public release; distribution in re-sensitive paint measurement on a transonic compressor rotor required the prior development of phase-locked cumulative imaging using a disk- rotor driven by a high-speed Hamilton-Standard turbine as a developmental test- : Kevin J.
Quinn. Schematic of pressure-sensitive paint measurement system . The first aerodynamic study using PSP is performed by Pervushin et al.
in to measure the pressure of air on the surface of wind tunnel models [ 62 ], and since then, numerous studies using PSP in external aerodynamics research have been : Fangyuan Lou.
J.W. Gregory: Porous pressure sensitive paint for measurement of unsteady pressures in turbomachinery, Proc. 42nd Aerospace Sciences Meeting and Exhibit (ASME, Reno ) Google Scholar Schodl R.: Development of the laser-two-focus method for non-intrusive measurement of flow vectors, particularly in turbomachines, European Space Agency.
Abstract. Pressure sensitive paint (PSP) techniques have been used to measure the pressure distribution on a model surface in high-speed flows. In this study, we developed a PSP technique that can be applied to low-speed : S. Lee, J. Kang. A fast-response pressure-sensitive paint (PSP) technique was applied to the measurement of unsteady surface pressure of an oscillating cascade blade in a transonic flow.
A linear cascade was used, and its central blade was oscillated in a translational by: 3. A single-shot, lifetime-based pressure-sensitive paint (PSP) technique is proposed as a pressure sensor for applications requiring high pressure sensitivity on a moving model such as a rotor blade.
Unsteady pressure-sensitive paint measurement based on the heterodyne method using low frame rate camera. Development of PSP Technique for Application on the VFE-2 65° Delta Wing Configuration. Journal of Turbomachinery, Vol.No.
2 Cited by: Pressure sensitive paint (PSP) is a relatively new tool that has the uniq ue capability of providing a fie ld. measurement over the entire s urface of a model. This method. We are very pleased to introduce this special issue of Measurement Science and Technology on Measuring Techniques for Turbomachinery.
A number of factors provided the motivation to assemble the papers on this topic. First, this field is a rapidly evolving area, which includes improvement and further development of existing measurement techniques, as well as the development of new measurement.
Measurements are made via oxygen-sensitive molecules attached to the surface of interest as a coating, or paint. The pressure-sensitive-paint (PSP) technique is now commonly used in stationary wind-tunnel tests; this thesis presents the extension of the technique to advanced turbomachinery applications.
The institute has always intensively worked in the fields of development, design, calibration, application and analysis of these measurement techniques. The great expertise enables to deliver accurate and flexible solutions for nearly all measurement challenges. Pressure Sensitive Paint Pressure Sensitive Paing (PSP) is an optical.
While pressure sensitive paint (PSP) technique has been widely used to measure adiabatic film cooling effectiveness distributions on the surfaces of interest based on a mass transfer analog to traditional thermal-based measurements, very little can be found in literature to provide a comprehensive analysis on the uncertainty levels of the measured film Cited by: This work details the development and application of fast-responding pressure-sensitive paint (fast PSP) and temperature-sensitive paint (TSP) for measuring unsteady surface pressure and temperature on fast rotating blades of turbomachinery.
Two measurement techniques: phase-lock intensity-based method and single-shot lifetime-based method were. There are numerous ways in which pressure-sensitive paint can be applied to a surface. The choice of substrate and application method can greatly affect the results obtained.
The current study examines the different methods of applying pressure-sensitive paint to a surface. One polymer-based and two porous substrates (anodized aluminum and thin-layer chromatography Cited by: pressure-sensitive paint measurement technique development for turbomachinery application 6.
author(s) quinn, kevin j. funding numbers 7. performing organization name(s) and address(es) naval reportpostgraduate school monterey, ca 8. performing organization number 9. sponsoring/monitoring agency name(s) and address(es) This paper will present details of a pressure-sensitive paint system for measuring global surface pressures on rotor blades in simulated forward flight at the 14 × 22 ft subsonic tunnel at the NASA Langley Research Center.
The system was designed to use a pulsed laser as an excitation source and pressure-sensitive paint data were collected using the lifetime-based Cited by:. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The paper describes application of two modern experimental techniques, thin-film thermocouples and pressure sensitive paint, to measurement in turbine engine components.
A growing trend of using computational codes in turbomachinery design and development requires experimental techniques .Application of the Transient Heater Foil Technique for Heat Transfer Measurements. M. Jonsson; P. Ott. XIX Biannual Symposium on Measuring Techniques in Turbomachinery, VKI, Rhode-St-Genèse, Belgium, AprilThe paper describes application of two modem experimental techniques, thin-film thermocouples and pressure sensitive paint, to measurement in turbine engine components.
A growing trend of using computational codes in turbomachinery design and development requires experimental techniques to refocus from overall performance testing to acquisition of .