Ways of Measuring Supersonic Flows in Wind Tunnels

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Bachir Achour

PSP techniques (Pressure-sensitive paint, High speed, low speed, unsteady); MDM (Model Deformation Method); aero-acoustic measurements.

Regards

Mahdi Khodaparast

Dear Prof.Achour, Thank you for your kind consideration.

Jiarong Hong

What quantities are you trying to measure?

Mohsen Jahanmiri

Schlieren technique, pressure and temperature sensitive paints, particle image velocimetry, wind tunnel balances, and a few more methods used for measuring flow parameters. It all depends on the particular test you have to carry out. Please refer to a text book on this context. Like High Speed Wind Tunnel Testing by Pope and Goin. And other text books by me:

1. Particle Image Velocimetry: Fundamentals and its Applications

2. Pressure Sensitive Paints: The Basics and its Applications.

dear Prof.Jahanmiri,

it was a pleasure for me to use your knowledge.

Thanks a lot for your helpful textbooks. I do appreciate it.

regards

Nawfal M. Ali

you can use a static pitot tube (special type for supersonic flow) and connection with a good digital manometer device.

Dear Dr. Nawfal M. Ali,

Thank you for taking the trouble to help me. I do appreciate it.

Charles Fort

Dear Mahdi,

Since no one mentioned it yet, I would like to add Molecular Tagging Velocimetry (MTV) to the list of nonintrusive velocimetry techniques previously introduced.

An extensive review on MTV by Koochesfahani & Nocera (2007):

https://www.aere.iastate.edu/~huhui/teaching/2016Fx/AerE545/lecture-notes/reference/MTV_2007-Springer-Book-Chapter-final.pdf

A more specific review on MTV in gases by Pitz & Danehy (2021): https://ntrs.nasa.gov/api/citations/20205004945/downloads/Update%20Chapter%2014%20MTV%20in%20Gases_23%20July%202020_%20for%20review.pdf

For a non-exhaustive list of experimental papers reporting velocity fields in supersonic flows using several variants of MTV (HTV, KTV, FLEET, VENOM):

Pitz et al. (2012) [HTV]:

Article Supersonic Flow over a Ramped-Wall Cavity Flame Holder with ...

(https://arc.aiaa.org/doi/pdf/10.2514/1.B34394)

Parziale et al. (2017, 2021) [KTV]:

Article Nonintrusive Freestream Velocity Measurement in a Large-Scal...

Article Freestream velocity-profile measurement in a large-scale, hi...

Danehy et al. (2021) [FLEET]:

Article Application of femtosecond-laser tagging for unseeded veloci...

Miles et al. (2021) [FLEET]:

Conference Paper Velocity and Temperature Measurements in Mach 18 Nitrogen Fl...

Bowersox et al. (2020) [VENOM]:

Conference Paper Towards Vibrationally Excited Nitric Oxide Monitoring (VENOM...

Dear Dr. Charles Fort ;

thanks a lot for taking the trouble to help me. I value your support so much.