TY - GEN
T1 - Drastic Changes of Turbulence in the Ignition Process of an n-Heptane/Air Mixture
AU - Ishihara, Takashi
AU - Kuno, Ryousuke
N1 - Funding Information:
Acknowledgements This study used the computational resources of the K computer provided by the RIKEN Advanced Institute for Computational Science through the HPCI System Research Project (project IDs: hp170264 and hp180226).
Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2021
Y1 - 2021
N2 - Two-dimensional turbulent combustion with rapid temperature and pressure growth in the ignition process of a homogeneous n-heptane/air mixture is studied by high-resolution direct numerical simulations (DNSs) of the flow field of the mixture with up to 20482 grid points. The DNSs show that the turbulent flow mixes the temperature field so that it affects on the ignition delay. The DNSs show also that the rapid temperature and pressure growth due to the heat release at ignition makes drastic changes in the turbulent velocity field, especially in its compressible component, and causes pressure oscillations in some cases.
AB - Two-dimensional turbulent combustion with rapid temperature and pressure growth in the ignition process of a homogeneous n-heptane/air mixture is studied by high-resolution direct numerical simulations (DNSs) of the flow field of the mixture with up to 20482 grid points. The DNSs show that the turbulent flow mixes the temperature field so that it affects on the ignition delay. The DNSs show also that the rapid temperature and pressure growth due to the heat release at ignition makes drastic changes in the turbulent velocity field, especially in its compressible component, and causes pressure oscillations in some cases.
KW - DNS
KW - Ignition process
KW - Pressure oscillations
KW - Turbulence
KW - n-heptane/air mixture
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U2 - 10.1007/978-981-33-4960-5_32
DO - 10.1007/978-981-33-4960-5_32
M3 - Conference contribution
AN - SCOPUS:85106453219
SN - 9789813349599
T3 - Lecture Notes in Mechanical Engineering
SP - 205
EP - 209
BT - Fluid-Structure-Sound Interactions and Control - Proceedings of the 5th Symposium on Fluid-Structure-Sound Interactions and Control
A2 - Braza, Marianna
A2 - Hoarau, Yannick
A2 - Zhou, Yu
A2 - Lucey, Anthony D.
A2 - Huang, Lixi
A2 - Stavroulakis, Georgios E.
PB - Springer Science and Business Media Deutschland GmbH
T2 - 5th Symposium on Fluid-Structure-Sound Interactions and Control, FSSIC 2019
Y2 - 27 August 2019 through 30 August 2019
ER -