Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering
DOWNLOAD
Download Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering
DOWNLOAD
Author : Gregory C. Herring
language : en
Publisher:
Release Date : 2002
Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering written by Gregory C. Herring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Raman effect categories.
Using a pulsed Nd:YAG laser (532 mn) and a gated, intensified charge-coupled device, planar Rayleigh and Raman scattering techniques have been used to visualize the unseeded Mach 0.2 flow density in a 0.3-meter transonic cryogenic wind tunnel. Detection limits are determined for density measurements by using both unseeded Rayleigh and Raman (N2 vibrational) methods. Seeding with C02 improved the Rayleigh flow visualization at temperatures below 150 K. The seeded Rayleigh version was used to demonstrate the observation of transient flow features in a separated boundary layer region, which was excited with an oscillatory jet.
Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering
DOWNLOAD
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-19
Flow Visualization Of Density In A Cryogenic Wind Tunnel Using Planar Rayleigh And Raman Scattering written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-19 with categories.
Using a pulsed Nd:YAG laser (532 nm) and a gated, intensified charge-coupled device, planar Rayleigh and Raman scattering techniques have been used to visualize the unseeded Mach 0.2 flow density in a 0.3-meter transonic cryogenic wind tunnel. Detection limits are determined for density measurements by using both unseeded Rayleigh and Raman (N2 vibrational) methods. Seeding with CO2 improved the Rayleigh flow visualization at temperatures below 150 K. The seeded Rayleigh version was used to demonstrate the observation of transient flow features in a separated boundary layer region, which was excited with an oscillatory jet. Finally, a significant degradation of the laser light sheet, in this cryogenic facility, is discussed. Herring, Gregory C. and Shirinzadeh, Behrooz Langley Research Center NASA/TM-2002-211630, L-18171, NAS 1.15:211630
Flow Visualization By Elastic Light Scattering In The Boundary Layer Of A Supersonic Flow
DOWNLOAD
Author : G. C. Herring
language : en
Publisher: DIANE Publishing
Release Date : 2000
Flow Visualization By Elastic Light Scattering In The Boundary Layer Of A Supersonic Flow written by G. C. Herring and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Aerodynamics, Supersonic categories.
We demonstrate instantaneous flow visualization of the boundary layer region of a Mach 2.5 supersonic flow over a flat plate that is interacting with an impinging shock wave. Tests were performed in the Unitary Plan Wind Tunnel (UPWT) at NASA Langley Research Center. The technique is elastic light scattering using 10-nsec laser pulses at 532 nm. We emphasize that no seed material of any kind, including water (H2O), is purposely added to the flow. The scattered light comes from a residual impurity that normally exists in the flow medium after the air drying process. Thus, the technique described here differs from the traditional vapor-screen method, which is typically accomplished by the addition of extra H2O vapor to the airflow. The flow is visualized with a series of thin two-dimensional light sheets (oriented perpendicular to the streamwise direction) that are located at several positions downstream of the leading edge of the model. This geometry allows the direct observation of the unsteady flow structure in the spanwise dimension of the model and also allows the indirect observation of the boundary layer growth in the streamwise dimension.
Applied Mechanics Reviews
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1980
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Mechanics, Applied categories.
International Aerospace Abstracts
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1996
International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Aeronautics categories.
Nasa Sp
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1992
Nasa Sp written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.
Aeronautical Engineering
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1992
Aeronautical Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
Aeronautical Engineering A Cumulative Index To A Continuing Bibliography Supplement 274
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1992
Aeronautical Engineering A Cumulative Index To A Continuing Bibliography Supplement 274 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Aeronautical Engineering A Cumulative Index To A Continuing Bibliography Supplement 325
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1995
Aeronautical Engineering A Cumulative Index To A Continuing Bibliography Supplement 325 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Scientific And Technical Aerospace Reports
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.