Abstract
The present paper describes our recent experimental studies on the supersonic mixing and combustion enhancement using streamwise vortices in spanwiserow configuration. Firing tests verify streamwise vortices of Γ/ν = 3 × 104 to be powerful for supersonic combustion enhancement. Cold-flow hot-wire measurements show that Kolmogorov’s −5/3 power law region appears in the spectrum of ρu-fluctuations in the vortices for Γ/ν above about 104. This is not inconsistent with the minimum Reynolds number for the mixing transition proposed by Dimotakis (2000).
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Nishioka, M., Sakaue, S., Komada, K., Sakoshi, H., Furukawa, I. (2006). MIXING TRANSITION IN SUPERSONIC STREAMWISE VORTICES. In: KIDA, S. (eds) IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence Dynamics. Fluid Mechanics and Its Applications, vol 79. Springer, Dordrecht. https://doi.org/10.1007/1-4020-4181-0_29
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DOI: https://doi.org/10.1007/1-4020-4181-0_29
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