한국연소학회:학술대회논문집
- 한국연소학회 2015년도 제51회 KOSCO SYMPOSIUM 초록집
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- Pages.23-24
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- 2015
Supersonic Combustion Modeling and Simulation for Scramjets
- Ladeinde, Foluso (Department of Mechanical Engineering State University of New York (SUNY))
- 발행 : 2015.12.10
초록
In this talk, we will present what we believe is the state-of-the-art of the numerical modeling and simulation of the combustion processes as they relate to typical scramjet engines. The free-stream Mach number is hypersonic, but the speed is not sufficiently decelerated at the inlet/isolator, as in ramjets, so that combustion takes place under supersonic conditions. This creates some difficulties for most turbulence-combustion models. We delve into the details of these problems, by discussing the software programs that have a long track record for scramjet combustion simulation; with a focus on the accuracy of the baseline numerical methods used, the turbulence modeling/simulation approach, the comparative fidelity of the turbulence-combustion interaction models, ability to simulate premixed/non-premixed/partially-premixed, quenching/re-ignition capabilities, the numerical spark-plug method, Damkholer number regimes supported, and the effects of variable Prandtl, Schmidt, and Lewis numbers. Validation results from high-speed and low-speed combustion applications will also be presented.
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