Study on Intermolecular Collision Scheme for DSMC Analysis of One-dimensional Normal Shock Wave

2017 ◽  
Vol 16 (0) ◽  
pp. 37-44
Author(s):  
Masaru USAMI
Keyword(s):  
Shock Wave ◽  
Normal Shock ◽  
Normal Shock Wave ◽  
One Dimensional ◽  
Intermolecular Collision

Sonic Flow Through an Abrupt Change in Cross-Section

1984 ◽  
Vol 198 (3) ◽  
pp. 197-203 ◽  
Author(s):  
J S Anderson ◽  
G E A Meier
Keyword(s):  
Shock Wave ◽  
Abrupt Change ◽  
Wave Structure ◽  
Normal Shock ◽  
Laser Doppler Velocimeter ◽  
Normal Shock Wave ◽  
One Dimensional ◽  
Sonic Flow ◽  
Flow Through ◽  
The One

The steady, transonic flow in a rectangular duct following an abrupt change in section has been studied by measuring the density with a Mach-Zehnder interferometer and velocity with a laser-Doppler velocimeter. The flow structure was controlled either by a single, normal shock wave or by a series of reflected oblique shocks. In the case of the normal shock wave structure the one-dimensional compressible flow theory was found to apply adequately to the overall duct. Within the duct the flow was not one-dimensional, but had a minimum velocity in the centre and four shear layers.

Normal shock-wave properties in imperfect air and nitrogen

AIAA Journal ◽  
1965 ◽  
Vol 3 (3) ◽  
pp. 554-556 ◽  
Author(s):  
CLARK H. LEWIS ◽  
E. G. BURGESS
Keyword(s):  
Shock Wave ◽  
Normal Shock ◽  
Normal Shock Wave ◽  
Wave Properties

Numerical investigations on the hydrogen jet pressure variations in a strut based scramjet combustor

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jeyakumar Suppandipillai ◽  
Jayaraman Kandasamy ◽  
R. Sivakumar ◽  
Mehmet Karaca ◽  
Karthik K.
Keyword(s):  
Shock Wave ◽  
Supersonic Flow ◽  
Pressure Loss ◽  
Total Pressure ◽  
Injection Pressure ◽  
Total Pressure Loss ◽  
Normal Shock ◽  
Content Type ◽  
Normal Shock Wave ◽  
Scramjet Combustor

Purpose This paper aims to study the influences of hydrogen jet pressure on flow features of a strut-based injector in a scramjet combustor under-reacting cases are numerically investigated in this study. Design/methodology/approach The numerical analysis is carried out using Reynolds Averaged Navier Stokes (RANS) equations with the Shear Stress Transport k-ω turbulence model in contention to comprehend the flow physics during scramjet combustion. The three major parameters such as the shock wave pattern, wall pressures and static temperature across the combustor are validated with the reported experiments. The results comply with the range, indicating the adopted simulation method can be extended for other investigations as well. The supersonic flow characteristics are determined based on the flow properties, combustion efficiency and total pressure loss. Findings The results revealed that the augmentation of hydrogen jet pressure via variation in flame features increases the static pressure in the vicinity of the strut and destabilize the normal shock wave position. Indeed, the pressure of the mainstream flow drives the shock wave toward the upstream direction. The study perceived that once the hydrogen jet pressure is reached 4 bar, the incoming flow attains a subsonic state due to the movement of normal shock wave ahead of the strut. It is noticed that the increase in hydrogen jet pressure in the supersonic flow field improves the jet penetration rate in the lateral direction of the flow and also increases the total pressure loss as compared with the baseline injection pressure condition. Practical implications The outcome of this research provides the influence of fuel injection pressure variations in the supersonic combustion phenomenon of hypersonic vehicles. Originality/value This paper substantiates the effect of increasing hydrogen jet pressure in the reacting supersonic airstream on the performance of a scramjet combustor.

Accuracy analysis of DSMC chemistry models applied to a normal shock wave

2012 ◽  
Author(s):  
Sergey Gimelshein ◽  
Ingrid Wysong ◽  
Yevgeny Bondar ◽  
Mikhail Ivanov
Keyword(s):  
Shock Wave ◽  
Normal Shock ◽  
Accuracy Analysis ◽  
Normal Shock Wave

Refraction of a normal shock wave from nitrogen into polyurethane foam

1990 ◽  
Author(s):  
L. F. Henderson ◽  
R. J. Virgona ◽  
J. Di ◽  
L. G. Gvozdeva
Keyword(s):  
Shock Wave ◽  
Polyurethane Foam ◽  
Normal Shock ◽  
Normal Shock Wave
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