Seung-Min JEONG, Inyoung YANG, Kyungjae LEE, Yang Ji LEE, Sanghoon LEE

DOI Number: N/A

Conference number: HiSST-2025-287

This study numerically investigates the flame evolution process in a tandem-cavity scramjet combustor for a Turbine-Based Combined Cycle (TBCC) engine. The combustor utilizes preheated kerosene, supplied via wall-mounted heat exchangers. The inflow conditions at the isolator inlet are a mass flow rate of 1.0 kg/s and a Mach number of 2.0. The simulation employed an Improved Delayed Detached Eddy Simulation (IDDES) model for turbulence and a quasi-laminar approach for chemistry. Spatial discretization was achieved using a fifth-order oMLP scheme for convective terms and a second-order central difference for viscous terms, while a second-order implicit LU-SGS scheme was used for time
marching. The results demonstrate successful flameholding in the first cavity and secondary combustion in the second cavity. However, insufficient fuel-air mixing was observed, attributed to interactions between the fuel streams. This numerical framework, having demonstrated its capability to capture the key combustion phenomena, will be applied to the design of a scaled-up combustor operating at a substantially higher mass flow rate.

Read the full paper here

Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.