scholarly journals Absorption to reflection transition in selective solar coatings

2012 ◽  
Vol 20 (S4) ◽  
pp. A554 ◽  
Author(s):  
Kyle D. Olson ◽  
Joseph J. Talghader
Keyword(s):  
Reflection Transition

Irregular Phenomena of Shock Reflection Transition in a Conventional Supersonic Wind Tunnel

AIAA Journal ◽  
2003 ◽  
Vol 41 (6) ◽  
pp. 1201-1204 ◽  
Author(s):  
Norikazu Sudani ◽  
Mamoru Sato ◽  
Toshio Karasawa ◽  
Hiroshi Kanda ◽  
Nobuhiro Toda
Keyword(s):  
Wind Tunnel ◽  
Shock Reflection ◽  
Supersonic Wind Tunnel ◽  
Reflection Transition

scholarly journals Stationary Mach Configurations with Pulsed Energy Release on the Normal Shock

Fluids ◽  
2021 ◽  
Vol 6 (12) ◽  
pp. 439
Author(s):  
Mikhail V. Chernyshov ◽  
Anna S. Kapralova ◽  
Stanislav A. Matveev ◽  
Karina E. Savelova
Keyword(s):  
Energy Release ◽  
Adiabatic Index ◽  
Normal Shock ◽  
Von Neumann ◽  
Reflection Transition ◽  
Real Gas Effects ◽  
Analytical Relations ◽  
Transition Criterion ◽  
Oblique Shocks ◽  
Detonation Model

We obtained a theoretical analysis of stationary Mach configurations of shock waves with a pulsed energy release at the main (normal) shock and a corresponding change in gas thermodynamic properties. As formation of the stationary Mach configuration corresponds to one of two basic, well-known criteria of regular/Mach shock reflection transition, we studied here how the possibility of pulsed energy release at the normal Mach stem shifts the von Neumann criterion, and how it correlates then with another transition criterion (the detachment one). The influence of a decrease in the “equilibrium” gas adiabatic index at the main shock on a shift of the solution domain was also investigated analytically and numerically. Using a standard detonation model for a normal shock in stationary Mach configuration, and ordinary Hugoniot relations for other oblique shocks, we estimated influence of pulsed energy release and real gas effects (expressed by decrease of gas adiabatic index) on shift of von Neumann criterion, and derived some analytical relations that describe those dependencies.

Experiments on shock wave reflection transition and hysteresis in low-noise wind tunnel

2003 ◽  
Vol 15 (6) ◽  
pp. 1807 ◽  
Author(s):  
M. S. Ivanov ◽  
A. N. Kudryavtsev ◽  
S. B. Nikiforov ◽  
D. V. Khotyanovsky ◽  
A. A. Pavlov
Keyword(s):  
Shock Wave ◽  
Wind Tunnel ◽  
Wave Reflection ◽  
Low Noise ◽  
Shock Wave Reflection ◽  
Reflection Transition
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