Numerical Study of Viscous Detonation Waves on a Confined Double Wedge Domain

Recently, we developed a numerical approach for the simulation of detonation waves on fully unstructured grids and applied it to the numerical study of the mechanisms of detonation initiation in multifocusing systems. Current work is devoted to further development of our numerical approach, namely, parallelization of the numerical scheme and introduction of more comprehensive detailed chemical kinetics scheme.

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

PROGRESS IN DETONATION RESEARCH ◽

10.30826/icpcd12a12 ◽

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).

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Numerical study of shock interactions in viscous, hypersonic flows over double-wedge geometries

Shock Waves ◽

10.1007/978-3-540-85168-4_108 ◽

2009 ◽

pp. 671-676 ◽

Cited By ~ 2

Author(s):

Z.M. Hu ◽

R.S. Myong ◽

T.H. Cho

Keyword(s):

Numerical Study ◽

Hypersonic Flows ◽

Double Wedge ◽

Shock Interactions

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A numerical study on the instability of oblique detonation waves with a two-step induction–reaction kinetic model

Proceedings of the Combustion Institute ◽

10.1016/j.proci.2018.05.090 ◽

2019 ◽

Vol 37 (3) ◽

pp. 3537-3544 ◽

Cited By ~ 24

Author(s):

Pengfei Yang ◽

Honghui Teng ◽

Hoi Dick Ng ◽

Zonglin Jiang

Keyword(s):

Kinetic Model ◽

Reaction Kinetic ◽

Numerical Study ◽

Detonation Waves ◽

Reaction Kinetic Model

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AERODYNAMIC MODELING OF OSCILLATING WING IN HYPERSONIC FLOW: A NUMERICAL STUDY

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194516601770 ◽

2016 ◽

Vol 42 ◽

pp. 1660177

Author(s):

JIAN ZHU ◽

YING-YU HOU ◽

CHEN JI ◽

ZI-QIANG LIU

Keyword(s):

Mach Number ◽

Hypersonic Flow ◽

Numerical Study ◽

Unsteady Aerodynamics ◽

Order Theory ◽

Second Order ◽

Double Wedge ◽

Piston Theory ◽

Impact Theory ◽

Cfd Method

Various approximations to unsteady aerodynamics are examined for the unsteady aerodynamic force of a pitching thin double wedge airfoil in hypersonic flow. Results of piston theory, Van Dyke’s second-order theory, Newtonian impact theory, and CFD method are compared in the same motion and Mach number effects. The results indicate that, for this thin double wedge airfoil, Newtonian impact theory is not suitable for these Mach number, while piston theory and Van Dyke’s second-order theory are in good agreement with CFD method for Ma<7.

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