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3 edition of High-speed laser anemometry based on spectrally resloved Rayleigh scattering found in the catalog.

High-speed laser anemometry based on spectrally resloved Rayleigh scattering

High-speed laser anemometry based on spectrally resloved Rayleigh scattering

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Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Laser Doppler velocimeter.,
  • Rayleigh scattering.

  • Edition Notes

    Other titlesHigh speed laser anemometry based ....
    StatementRichard G. Seasholtz.
    SeriesNASA technical memorandum -- 104522.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL18034713M

    Do you know anything abou lasers? They give monochromatic light! Take e.g. a green laser. Rayleigh scattering will scatter away a bit of the green light. But the beam, the scattered and reflected light will stay green. —Preceding unsigned comment added by , 17 June (UTC) Yes. Spiel , 17 June (UTC). 34th AIAA Aerodynamic Measurement Technology and Ground Testing Conference Atlanta, Georgia, USA A Spectrally-resolved Rayleigh Scattering Set-up to Measure Velocity and Temperature in High-speed Flows the Low Vibration Sled Test Capability at the Holloman High Speed Test Track (AIAA.

    Rayleigh scattering (/ ˈ r eɪ l i / RAY-lee), named after the nineteenth-century British physicist Lord Rayleigh (John William Strutt), is the predominantly elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the radiation. For light frequencies well below the resonance frequency of the scattering particle (normal dispersion . Filtered Rayleigh and RELIEF imaging of velocity, temperature and density in hypersonic flows for the study of boundary layers, shock structures, mixing phenomena and the acquisition of in-flight air data.- 2D velocity and temperature measurements in high speed flows based on spectrally resolved Rayleigh scattering.- Session 6A: Heat Flux

      Rayleigh scattering produced in the lower atmosphere by laser launched from the ground, could be very relevant for performances of Laser Guide Stars systems and for light contamination measurements in other close telescopes. We have studied the scattering above Teide Observatory (Canary Islands) produced by a potassium by: 1. Introduction. Brillouin scattering, first described by Brillouin 8 in , is the inelastic scattering of light from the thermal acoustic modes in a solid and from the random thermal density fluctuations in a liquid or gas. The spectral shift of the scattered light, usually in the sub GHz-range, gives information about the interaction between the incident light and the acoustic Cited by:


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High-speed laser anemometry based on spectrally resloved Rayleigh scattering Download PDF EPUB FB2

High-Speed Laser Anemometry Based on Spectrally Resolved Rayleigh Scattering Richard G. Seasholtz Lewis Research Center Cleveland, Ohio Prepared for the Fourth International Conference on Laser Anemometry cosponsored by the American Society of Mechanical Engineers, the European Asso.

Get this from a library. High-speed laser anemometry based on spectrally resolved Rayleigh scattering. [Richard G Seasholtz; United States.

National Aeronautics and Space Administration.]. High-speed laser anemometry based on spectrally resolved Rayleigh scattering.

By Richard G. Seasholtz. Abstract. Laser anemometry in unseeded flows based on the measurement of the spectrum of Rayleigh scattered laser light is reviewed. The use of molecular scattering avoids the well known problems (particle lag, biasing effects, seed Author: Richard G.

Seasholtz. High-speed laser anemometry based on spectrally resolved Rayleigh scattering: Authors: Seasholtz, Richard G. Affiliation: AA(National Aeronautics and Space Administration.

Lewis Research Center, Cleveland, OH.) Publication. High-speed laser anemometry based on spectrally resolved Rayleigh scattering. By R. Seasholtz. Abstract. Laser anemometry in unseeded flows based on the measurement of the spectrum of Rayleigh scattered laser light is reviewed. The use of molecular scattering avoids the well-known problems (particle lag, biasing effects, seed generation Author: R.

Seasholtz. Seasholtz, R.G. () ‘High-speed laser anemometry based on spectrally resolved Rayleigh scattering’, Fourth International Conference on Laser Anemometry Cited by: Seasholtz, R.G., “High-speed anemometry based on spectrally resolved Rayleigh scattering ”, Fourth International Conference on Laser Anemometry, Cleveland, Author: Richard G.

Seasholtz, Jayanta Panda, Kristie A. Elam. Single-shot spectrally resolved UV Rayleigh scattering measurements in high speed flow (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type: Internet Resource, Computer File: All Authors / Contributors: Richard G Seasholtz; Lewis Research Center.

A new molecular Rayleigh scattering based flow diagnostic is used for the first time to measure the power spectrum of gas density and radial velocity component in the plumes of high speed.

Seasholtz, R. G., High-speed anemometry based on spectrally resolved Rayleigh scattering. Fourth International Conference on Laser Anemometry, Cleveland, Ohio, Cited by: Recently, a molecular Rayleigh scattering based technique has been advanced to simultaneously measure density and velocity fluctuations spectra in high-speed flow for the first time (Seasholtz.

Spectrally resolved Rayleigh scattering diagnostic for hydrogen-oxygen rocket plume studies. YAG laser-based dual-line detection Rayleigh scattering technique.

Velocity and temperature measurement in supersonic free jets using spectrally resolved Rayleigh by: A Rayleigh scattering diagnostic for high speed flows is described for the simultaneous, instantaneous measurement of gas temperature and velocity at a number.

Start studying Ultrasound Physics Exam2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Theory. We used a three-mode optical fiber, containing the LP 01, LP 11a, and LP 11b modes, as an example to study Rayleigh scattering.

The theory we developed here, however, can be extended to an Cited by: Dyer T M Rayleigh scattering measurements of time-resolved concentration in a turbulent propane jet AIAA J. 17 Crossref Google Scholar Elliot G S and Beutner T J Molecular filter based planar Doppler velocimetry by: Encyclopedia > letter R > Rayleigh scattering.

Rayleigh Scattering. Definition: scattering of light at scattering centers which are much smaller than the wavelength.

More general terms: scattering German: Rayleigh-Streuung. Category: general optics. How to cite the article; suggest additional literature.

Author: Dr. Rüdiger Paschotta Rayleigh scattering is a common scattering. Filtered Rayleigh scattering. Laser-induced Rayleigh scattering (LRS) is an outstanding diagnostic tool due to its simplicity and ease of implementation for the study of gases in combustion environments.

Due to the relatively strong scattering cross-section of Rayleigh scattering (which is generally times stronger than Raman Cited by: Frazão O., Correia C., Santos J. & Baptista J.

Raman fibre Bragg-grating laser sensor with cooperative Rayleigh scattering for strain–temperature measurement. Measurement Science and Technol (). Hartog A. A distributed temperature sensor based on liquid-core optical by: Velocity and Temperature Measurement in Supersonic Free Jets Using Spectrally Resolved Rayleigh Scattering J.

Panda Middleburg Heights, Ohio Cleveland, Ohio Abstract The flow fields of unheated, supersonic free jets I. INTRODUCTION from convergent and convergent-divergent nozzles operating at M =, and wereFile Size: 1MB.

Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines Zhao R by Hua Zhao Laser Diagnostics and Optical Measurement Techniques in Internal Combustion Engines The increasing concern about CO 2 emissions and energy prices has led to new CO 2 emission and fuel economy legislation being introduced in world regions.

The applications of laser Rayleigh scattering to combustion diagnostics Progress in Energy and Combustion Science, Vol.

19, No. 6 Spectrally resolved Rayleigh scattering diagnostic for hydrogen-oxygen rocket plume studiesCited by:   GJ b is a warm Neptune-size planet transiting a M dwarf star.

Like the handful of other small exoplanets for which transmission spectroscopy has been obtained, GJ b exhibits a flat spectrum in the near- and mid-infrared. Recently, a tentative detection of Rayleigh scattering in its atmosphere has been reported.

This signal manifests itself as an .