Validation of chemically reactive computational fluid dynamics simulations of oblique detonation wave engines
Validation of chemically reactive computational fluid dynamics simulations of oblique detonation wave engines
In this study, external injection oblique detonation wave engine (ODWE) experiments are simulated using AMROC (Adaptive Mesh Refinement in Object-oriented C++), our block-structured, adaptive mesh refinement framework for the simulation of shock-induced combustion phenomena. Simulations in the midplane of the experimental combustion system are conducted using a two-dimensional domain with accurate embedded boundaries to create the geometry of the inlet ramp, combustor, and nozzle. The external injection system and mixing process are simplified to a perfectly mixed fuel-air stream with a known freestream Mach number, temperature, and pressure. Comparisons between numerical and experimental results are made using measured combustor wall pressures, oblique shockwave (OSW) angles, and detonation wave angles. Here, we provide all setup details that have allowed us to achieve full CFD validation for three prototype ODWE configurations experimentally investigated by Zhang et al. at the Chinese Academy of Sciences. The successful application of simple, perfectly premixed inflow conditions makes these configurations now easily accessible and provides a set of fully reproducible ODWE benchmarks for other high-speed combustion codes.
Adaptive Mesh Refinement, C++, Combustion System, Combustors, Computational Fluid Dynamics Simulation, Freestream Mach Number, Inlet Ramp, Oblique Detonation Wave Engine, Shock Induced Combustion, Shockwave Boundary Layer Interaction
American Institute of Aeronautics and Astronautics
Marshak, Alexander D.
9acc0099-c06d-4b24-9921-60e01c9adbf5
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
16 July 2025
Marshak, Alexander D.
9acc0099-c06d-4b24-9921-60e01c9adbf5
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
Marshak, Alexander D. and Deiterding, Ralf
(2025)
Validation of chemically reactive computational fluid dynamics simulations of oblique detonation wave engines.
In AIAA Aviation Forum and ASCEND Conference Proceedings.
American Institute of Aeronautics and Astronautics.
14 pp
.
(doi:10.2514/6.2025-3597).
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this study, external injection oblique detonation wave engine (ODWE) experiments are simulated using AMROC (Adaptive Mesh Refinement in Object-oriented C++), our block-structured, adaptive mesh refinement framework for the simulation of shock-induced combustion phenomena. Simulations in the midplane of the experimental combustion system are conducted using a two-dimensional domain with accurate embedded boundaries to create the geometry of the inlet ramp, combustor, and nozzle. The external injection system and mixing process are simplified to a perfectly mixed fuel-air stream with a known freestream Mach number, temperature, and pressure. Comparisons between numerical and experimental results are made using measured combustor wall pressures, oblique shockwave (OSW) angles, and detonation wave angles. Here, we provide all setup details that have allowed us to achieve full CFD validation for three prototype ODWE configurations experimentally investigated by Zhang et al. at the Chinese Academy of Sciences. The successful application of simple, perfectly premixed inflow conditions makes these configurations now easily accessible and provides a set of fully reproducible ODWE benchmarks for other high-speed combustion codes.
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Published date: 16 July 2025
Venue - Dates:
AIAA AVIATION FORUM AND ASCEND 2025, , Las Vegas, United States, 2025-07-21 - 2025-07-25
Keywords:
Adaptive Mesh Refinement, C++, Combustion System, Combustors, Computational Fluid Dynamics Simulation, Freestream Mach Number, Inlet Ramp, Oblique Detonation Wave Engine, Shock Induced Combustion, Shockwave Boundary Layer Interaction
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Local EPrints ID: 506092
URI: http://eprints.soton.ac.uk/id/eprint/506092
PURE UUID: a4edc843-a450-4f3b-911a-874ac922b364
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Date deposited: 28 Oct 2025 18:24
Last modified: 29 Oct 2025 02:49
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Author:
Alexander D. Marshak
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