Chapman-Jouguet oblique detonation structure around hypersonic projectiles

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 1553-1561
Author(s):  
Jiro Kasahara ◽  
Takakage Arai ◽  
Toshi Fujiwara ◽  
Takuma Endo
Keyword(s):  
Detonation Structure ◽  
Hypersonic Projectiles

Chapman-Jouguet Oblique Detonation Structure Around Hypersonic Projectiles

AIAA Journal ◽  
2001 ◽  
Vol 39 (8) ◽  
pp. 1553-1561 ◽  
Author(s):  
Jiro Kasahara ◽  
Toshi Fujiwara ◽  
Takuma Endo ◽  
Takakage Arai
Keyword(s):  
Detonation Structure ◽  
Hypersonic Projectiles

NUMERICAL STUDY OF DETONATION PROPAGATION IN VISCOUS TURBULENT FLOW IN A DUCT

2020 ◽  
Author(s):  
V. A. SABELNIKOV ◽  
◽  
V. V. VLASENKO ◽  
S. BAKHNE ◽  
S. S. MOLEV ◽  
...  
Keyword(s):  
Complex Geometry ◽  
Numerical Study ◽  
Navier Stokes ◽  
Detonation Waves ◽  
Detonation Propagation ◽  
Eddy Simulation ◽  
Detonation Structure ◽  
Classical Studies ◽  
Large Eddy ◽  
Physical Effects

Gasdynamics of detonation waves was widely studied within last hundred years - analytically, experimentally, and numerically. The majority of classical studies of the XX century were concentrated on inviscid aspects of detonation structure and propagation. There was a widespread opinion that detonation is such a fast phenomenon that viscous e¨ects should have insigni¦cant in§uence on its propagation. When the era of calculations based on the Reynolds-averaged Navier- Stokes (RANS) and large eddy simulation approaches came into effect, researchers pounced on practical problems with complex geometry and with the interaction of many physical effects. There is only a limited number of works studying the in§uence of viscosity on detonation propagation in supersonic §ows in ducts (i. e., in the presence of boundary layers).

Modeling of Hydrogen-Air Detonations in the TONUS CFD Code and Its Application to the FLAME F-19 Test

2008 ◽  
Author(s):  
Eveliina Takasuo
Keyword(s):  
Cfd Simulation ◽  
Hydrogen Combustion ◽  
Severe Accident ◽  
Parameter Study ◽  
Model Parameters ◽  
Gas Detonation ◽  
Global Rate ◽  
Detonation Structure ◽  
Mesh Resolution ◽  
Post Shock

In severe accident management, the ability to predict pressure and thermal loads resulting from hydrogen combustion is important since they may threaten containment integrity. In computational modeling, different combustion regimes have to be accounted for and state-of-the-art techniques developed for reliable analysis. In the present study, the focus is on computational fluid dynamics code validation for reactive flows in the detonation regime. The FLAME hydrogen combustion test F-19 performed at the Sandia National Laboratories has been simulated by using the gas detonation model implemented in the TONUS CFD code which is developed by CEA and IRSN (France). In this model the reactive Euler equations are solved and the reaction rate is obtained by the Arrhenius global rate equation. Several simulations were run in order to examine the effect of modifying the parameters of the chemistry model. A mesh convergence study was performed for the purpose of finding out the necessary mesh resolution which could capture the detonation propagation with adequate accuracy. In addition, Chapman-Jouguet post-shock equilibrium conditions and the ZND detonation structure for the present gas mixture were examined by chemical kinetics calculations. The CFD simulation results were compared to the test results and the Chapman-Jouguet post-shock conditions. It was observed that the computational results differ from the C-J results with the C-J velocity being slightly exceeded. The model parameter study showed that it is not possible to significantly affect the flame propagation by adjusting the model parameters.

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

Numerical modelling of dust-layered detonation structure in a narrow tube

2013 ◽  
Vol 26 (2) ◽  
pp. 380-386 ◽  
Author(s):  
I. Semenov ◽  
P. Utkin ◽  
V. Markov
Keyword(s):  
Numerical Modelling ◽  
Narrow Tube ◽  
Detonation Structure

Experimental investigations of steady-state oblique detonation waves generated around hypersonic projectiles

2001 ◽  
Author(s):  
Jiro Kasahara ◽  
Takakage Arai ◽  
Akiko Matsuo ◽  
Nobutaka Akai ◽  
Kouki Takazawa
Keyword(s):  
Steady State ◽  
Experimental Investigations ◽  
Detonation Waves ◽  
Hypersonic Projectiles

Effects of boattail geometry on the aerodynamics of hypersonic projectiles

1982 ◽  
Author(s):  
A. AGNONE ◽  
V. ZAKKAY ◽  
W. STUREK
Keyword(s):  
Hypersonic Projectiles

Energy release effect of mixture on single spinning detonation structure

2009 ◽  
Vol 32 (2) ◽  
pp. 2405-2412 ◽  
Author(s):  
Nobuyuki Tsuboi ◽  
A. Koichi Hayashi ◽  
Mitsuo Koshi
Keyword(s):  
Energy Release ◽  
Spinning Detonation ◽  
Detonation Structure
Sign in / Sign up

Export Citation Format

Share Document