Jeroen Van den Eynde & Johan Steelant

DOI Number XXX-YYY-ZZZ

Conference Number HiSST 2018_1300827

The production, growth and propagation of turbulent spots is a driving mechanism behind the process of bypass transition. An increased understanding of the behaviour of turbulent spots will therefore help the understanding and the prediction of transition onset. Recently an intermittency-based transition model by the same authors used the turbulent spot growth mechanism in their calculation of the intermittency production. A mathematical model for the effect of compressibility and wall temperature effects on the turbulent spot is thus required to accurately predict and replicate the transition behaviour in hypersonic flows. The current work synthesises experimental and numerical data for spot growth and aims to present an empirical model for the spot propagation parameter that includes compressibility and wall temperature effects.

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In Categories: High-Speed Aerodynamics and Aerothermodynamics, HiSST 2018, Thermal and Energy Management Systems, Thermal Protection Systems, Transition to Turbulence, Turbulence Modeling and Simulation
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