TY - GEN
T1 - Large eddy simulation of combusiton characteristics in a hydrogen fueled model scramjet combustor
AU - Qin, Fei
AU - Huang, Zhi Wei
AU - Liu, Bin
AU - Wei, Xiang Geng
N1 - Publisher Copyright:
© 2015, American Institute of Aeronautics and Astronautics. All rights reserved.
PY - 2015
Y1 - 2015
N2 - This paper reports on Large Eddy Simulation (LES) of supersonic combustion characteristics in a model scramjet combustor based on an Open Source Field Operation and Manipulation (OpenOAM) computing platform, with slip and viscous wall boundary conditions. The three-dimensional LES solver, which adopts a Partially Stirred Reactor (PaSR) sub-grid combustion model along with a skeleton 27 steps hydrogen chemical kinetics, is used to study strut-enhanced mixing and combustion. LES results show that mean axial velocity and temperature at different cross sections agree with experimental data, and spatial evolution of the supersonic diffusion flame is well captured. Effects of shear layers growth, development and breaking down on combustion processes are discussed in detail, and the coupling effects with unsteady vortex shedding at the strut base are revealed. Different mixing modes are recognized after the strut where subsonic and supersonic flows co-exist.
AB - This paper reports on Large Eddy Simulation (LES) of supersonic combustion characteristics in a model scramjet combustor based on an Open Source Field Operation and Manipulation (OpenOAM) computing platform, with slip and viscous wall boundary conditions. The three-dimensional LES solver, which adopts a Partially Stirred Reactor (PaSR) sub-grid combustion model along with a skeleton 27 steps hydrogen chemical kinetics, is used to study strut-enhanced mixing and combustion. LES results show that mean axial velocity and temperature at different cross sections agree with experimental data, and spatial evolution of the supersonic diffusion flame is well captured. Effects of shear layers growth, development and breaking down on combustion processes are discussed in detail, and the coupling effects with unsteady vortex shedding at the strut base are revealed. Different mixing modes are recognized after the strut where subsonic and supersonic flows co-exist.
UR - http://www.scopus.com/inward/record.url?scp=84947969661&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:84947969661
SN - 9781624103209
T3 - 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
BT - 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
PB - AIAA American Institute of Aeronautics and Astronautics
T2 - 20th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 2015
Y2 - 6 July 2015 through 9 July 2015
ER -