scholarly journals Visualization of the non-steady state oblique detonation wave phenomena around hypersonic spherical projectile

2011 ◽  
Vol 33 (2) ◽  
pp. 2343-2349 ◽  
Author(s):  
Shinichi Maeda ◽  
Ryuichi Inada ◽  
Jiro Kasahara ◽  
Akiko Matsuo
Keyword(s):  
Steady State ◽  
Detonation Wave ◽  
Oblique Detonation Wave ◽  
Wave Phenomena

scholarly journals Structure of Steady-State Oblique Detonation Wave Generated around Hypersonic Projectiles.

1999 ◽  
Vol 47 (551) ◽  
pp. 457-463 ◽  
Author(s):  
Jiro KASAHARA ◽  
Takuma ENDO ◽  
Kouji NISHIDE ◽  
Daisuke YAHATA ◽  
Toshi FUJIWARA
Keyword(s):  
Steady State ◽  
Detonation Wave ◽  
Oblique Detonation Wave ◽  
Hypersonic Projectiles

Standing oblique detonation wave engine performance

1987 ◽  
Author(s):  
M. OSTRANDER ◽  
J. HYDE ◽  
M. YOUNG ◽  
R. KISSINGER ◽  
D. PRATT
Keyword(s):  
Detonation Wave ◽  
Engine Performance ◽  
Oblique Detonation Wave

The formation and development of oblique detonation wave with different chemical reaction models

2021 ◽  
pp. 106964
Author(s):  
Hongbo Guo ◽  
Xiongbin Jia ◽  
Ningbo Zhao ◽  
Shuying Li ◽  
Hongtao Zheng ◽  
...  
Keyword(s):  
Detonation Wave ◽  
Chemical Reaction ◽  
Oblique Detonation Wave ◽  
Reaction Models

STANDING‐WAVE PHENOMENA IN SHORT‐PERIOD SEISMIC NOISE

Geophysics ◽  
1965 ◽  
Vol 30 (6) ◽  
pp. 1179-1186 ◽  
Author(s):  
Indra N. Gupta
Keyword(s):  
Steady State ◽  
Standing Wave ◽  
Seismic Noise ◽  
P Wave ◽  
Stratified Medium ◽  
Alternative Theory ◽  
Compressional Waves ◽  
Short Period ◽  
Wave Phenomena ◽  
Phase Spectra

Short‐period vertical seismometers are used in deep holes at several sites to obtain the change with depth in amplitude and phase spectra of short‐period seismic noise. Although the observed spectra can be explained by an arbitrary combination of several Rayleigh modes, an alternative theory is suggested here. An attempt is made to explain both amplitude and phase spectra of observed microseisms of period less than 6 sec in terms of standing‐wave phenomena caused by steady‐state plane harmonic compressional waves propagating vertically through a horizontally stratified medium. At most sites, the observed data indicate satisfactory agreement with the expected results. A considerable fraction of the short‐period noise may, therefore, be regarded as P‐wave noise propagating vertically from below.

Numerical Study of Detonation Propagation in an Insensitive High Explosive Arc with Confinement Materials

2020 ◽  
pp. 2050117
Author(s):  
Yupei Qin ◽  
Kuibang Huang ◽  
Huan Zheng ◽  
Yousheng Zhang ◽  
Xin Yu
Keyword(s):  
Stainless Steel ◽  
Steady State ◽  
Detonation Wave ◽  
High Explosive ◽  
Numerical Study ◽  
Detonation Front ◽  
Outer Boundary ◽  
Outer Part ◽  
Transition Phase ◽  
Detonation Propagation

Detonation propagation in a confined circular arc configuration of an insensitive high explosive PBX9502 is investigated via numerical simulation in this paper. We introduce a steady detonation wave entering the explosive arc with confinements of stainless steel, and then it undergoes a transition phase and reaches a new steady state with a constant angular speed eventually. The influences of the inner and the outer confinements on the propagating detonation wave as well as the characteristics of the detonation driving zone (DDZ) in the steady state are discussed, respectively. Ignition and Growth (I&G) reaction rate and Jones–Wilkins–Lee (JWL) equations of state for the reactants and the products of PBX9502 are employed in the numerical simulations on the basis of a two-dimensional Eulerian code. The equation of state for stainless steel is in the Grüneisen form with a linear shock speed–particle speed Hugoniot relationship. Our results show that the inner confinement dominates the evolution of the detonation wave and the outer confinement only takes effect in a local region near the outer boundary within a limited initial stage during the transition phase. As for the steady state, the existence of the inner confinement makes the DDZ possess a certain width on the inner boundary. While as to the outer part of the detonation wave, the width of the DDZ decreases until the sonic locus intersects with the detonation front shock, which results in the detachment of the DDZ from the outer boundary and makes the detonation propagation fully independent of the outer confinement.

Oblique detonation wave studies in the Caltech T-5 Shock Tunnel Facility

1998 ◽  
Author(s):  
J. Sterling ◽  
E. Cummings ◽  
K. Ghorbanian ◽  
D. Pratt ◽  
T. Sobota ◽  
...  
Keyword(s):  
Detonation Wave ◽  
Shock Tunnel ◽  
Oblique Detonation Wave
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