Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722378875
Category :
Languages : en
Pages : 58
Book Description
A new method for obtaining large scale interferograms of flow fields in real time was investigated. The method was based on the point diffraction interferometry technique. The method was modified to accommodate the higher laser power required in recording transonic and supersonic flow fields. Basic tests were conducted in unsteady flows and flows about circulation control airfoils at transonic speeds. It was found that vibration was not a significant factor in the application of the system. In the case of the circulation control airfoils, the real-time viewing allowed the identification of the Coanda jet interaction with the external flow and the shedding of large scale vortices. The method proved to be very sensitive to the optical quality of the wind tunnel windows. The results obtained were compared with earlier interferograms obtained using interferometry. These results were in qualitative agreement. Bachalo, William D. and Houser, Michael C. Unspecified Center...
Evaluation and Application of a New Interferometry Technique for Compressible Flow Research
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722378875
Category :
Languages : en
Pages : 58
Book Description
A new method for obtaining large scale interferograms of flow fields in real time was investigated. The method was based on the point diffraction interferometry technique. The method was modified to accommodate the higher laser power required in recording transonic and supersonic flow fields. Basic tests were conducted in unsteady flows and flows about circulation control airfoils at transonic speeds. It was found that vibration was not a significant factor in the application of the system. In the case of the circulation control airfoils, the real-time viewing allowed the identification of the Coanda jet interaction with the external flow and the shedding of large scale vortices. The method proved to be very sensitive to the optical quality of the wind tunnel windows. The results obtained were compared with earlier interferograms obtained using interferometry. These results were in qualitative agreement. Bachalo, William D. and Houser, Michael C. Unspecified Center...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722378875
Category :
Languages : en
Pages : 58
Book Description
A new method for obtaining large scale interferograms of flow fields in real time was investigated. The method was based on the point diffraction interferometry technique. The method was modified to accommodate the higher laser power required in recording transonic and supersonic flow fields. Basic tests were conducted in unsteady flows and flows about circulation control airfoils at transonic speeds. It was found that vibration was not a significant factor in the application of the system. In the case of the circulation control airfoils, the real-time viewing allowed the identification of the Coanda jet interaction with the external flow and the shedding of large scale vortices. The method proved to be very sensitive to the optical quality of the wind tunnel windows. The results obtained were compared with earlier interferograms obtained using interferometry. These results were in qualitative agreement. Bachalo, William D. and Houser, Michael C. Unspecified Center...
Evaluation and Application of a New Interferometry Technique for Compressible Flow Research
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 456
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
NASA Tech Briefs
Author:
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 58
Book Description
Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 58
Book Description
Interferometric Data for a Shock-wave/boundary-layer Interaction
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 274
Book Description
Applied Mechanics Reviews
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 348
Book Description
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 348
Book Description
Tech Notes
Author:
Publisher:
ISBN:
Category : Technological innovations
Languages : en
Pages : 778
Book Description
Publisher:
ISBN:
Category : Technological innovations
Languages : en
Pages : 778
Book Description
Government reports annual index
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 1000
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 1000
Book Description
Optical Methods in Engineering Metrology
Author: D.C. Williams
Publisher: Springer Science & Business Media
ISBN: 9401115648
Category : Technology & Engineering
Languages : en
Pages : 490
Book Description
Optical methods, stimulated by the advent of inexpensive and reliable lasers, are assuming an increasingly important role in the field of engineering metrology. Requiring only a basic knowledge of optics, this text provides a compendium of practical information prepared by leaders in the field.
Publisher: Springer Science & Business Media
ISBN: 9401115648
Category : Technology & Engineering
Languages : en
Pages : 490
Book Description
Optical methods, stimulated by the advent of inexpensive and reliable lasers, are assuming an increasingly important role in the field of engineering metrology. Requiring only a basic knowledge of optics, this text provides a compendium of practical information prepared by leaders in the field.
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1698
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1698
Book Description