A Transient Global Heat-Flux Measurements for High-Speed Flow over a Wall-Mounted Cylinder in a Shock Tube

2018 ◽  
Author(s):  
Hiroshi Ozawa ◽  
Stuart J. Laurence
Keyword(s):  
Heat Flux ◽  
Shock Tube ◽  
High Speed ◽  
High Speed Flow ◽  
Speed Flow ◽  
Flux Measurements

Aerothermodynamic correlations for high-speed flow

2017 ◽  
Vol 821 ◽  
pp. 421-439 ◽  
Author(s):  
Narendra Singh ◽  
Thomas E. Schwartzentruber
Keyword(s):  
Heat Flux ◽  
Stagnation Point ◽  
High Speed ◽  
Direct Simulation Monte Carlo ◽  
Local Heat ◽  
High Speed Flow ◽  
Speed Flow ◽  
Wide Range ◽  
Correlation Parameters ◽  
Stagnation Point Heat Flux

Heat flux and drag correlations are developed for high-speed flow over spherical geometries that are accurate for any Knudsen number ranging from continuum to free-molecular conditions. A stagnation point heat flux correlation is derived as a correction to the continuum (Fourier model) heat flux and also reproduces the correct heat flux in the free-molecular limit by use of a bridging function. In this manner, the correlation can be combined with existing continuum correlations based on computational fluid dynamics simulations, yet it can now be used accurately in the transitional and free-molecular regimes. The functional form of the stagnation point heat flux correlation is physics based, and was derived via the Burnett and super-Burnett equations in a recent article, Singh & Schwartzentruber (J. Fluid Mech., vol. 792, 2016, pp. 981–996). In addition, correlation parameters from the literature are used to construct simple expressions for the local heat flux around the sphere as well as the integrated drag coefficient. A large number of direct simulation Monte Carlo calculations are performed over a wide range of conditions. The computed heat flux and drag data are used to validate the correlations and also to fit the correlation parameters. Compared to existing continuum-based correlations, the new correlations will enable engineering analysis of flight conditions at higher altitudes and/or smaller geometry radii, useful for a variety of applications including blunt body planetary entry, sharp leading edges, low orbiting satellites, meteorites and space debris.

scholarly journals Velocity Measurements of an Intermittent High-Speed Flow Inside a Micro Shock Tube

2006 ◽  
Vol 72 (713) ◽  
pp. 61-68 ◽  
Author(s):  
Mikiya ARAKI ◽  
Masaaki ARAI ◽  
Koji OKAMOTO ◽  
Tsuneaki ISHIMA ◽  
Tomio OBOKATA
Keyword(s):  
Shock Tube ◽  
High Speed ◽  
Velocity Measurements ◽  
High Speed Flow ◽  
Speed Flow

Visualization of High Speed Flow in a Pipe with Cavity

1997 ◽  
Vol 17 (Supplement2) ◽  
pp. 113-116
Author(s):  
Kenji HOSOI ◽  
Masaaki KAWAHASHI ◽  
Hiroyuki HIRAHARA ◽  
Kouju SHIOZAKI ◽  
Kenichirou SATOH
Keyword(s):  
High Speed ◽  
High Speed Flow ◽  
Speed Flow

Pulsed discharge-induced high-speed flow near a dielectric ledge

2021 ◽  
Vol 62 (7) ◽  
Author(s):  
D. I. Tatarenkova ◽  
E. Yu. Koroteeva ◽  
T. A. Kuli-zade ◽  
E. A. Karnozova ◽  
I. A. Znamenskaya ◽  
...  
Keyword(s):  
High Speed ◽  
Pulsed Discharge ◽  
High Speed Flow ◽  
Speed Flow
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