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- Title
Improved Delayed Detached Eddy Simulation of Combustion of Hydrogen Jets in a High-Speed Confined Hot Air Cross Flow II: New Results.
- Authors
Bakhne, Sergei; Vlasenko, Vladimir; Troshin, Alexei; Sabelnikov, Vladimir; Savelyev, Andrey
- Abstract
The improved delayed detached Eddy simulation (IDDES) approach used in the part I of this investigation to study the self-ignition and combustion of hydrogen jets in a high-speed transverse flow of hot vitiated air in a duct is extended in the following directions: (i) the wall boundary conditions are modified to take into account the optical windows employed in the experiments; (ii) the detailed chemical kinetic model with 19 reactions is used; (iii) a nonlinear turbulence model is implemented in the code to capture the secondary flows in the duct corners; (iv) the wall roughness model is adapted; (v) the synthetic turbulence generator is imposed upstream of the fuel injection. As a result of improving the mathematical and physical problem statements, a good agreement between the simulation and the experimental database obtained at the LAERTE workbench (ONERA) is achieved.
- Subjects
AIR flow; COMBUSTION; EDDIES; AIR ducts; CHEMICAL models; PLASMA turbulence; COUNTERFLOWS (Fluid dynamics)
- Publication
Energies (19961073), 2023, Vol 16, Issue 21, p7262
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en16217262