Energy spectra in microbubbly turbulence

van den Berg, Thomas H.; Luther, Stefan; Lohse, Detlef

doi:10.1063/1.2185688

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Energy spectra in microbubbly turbulence

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Luther, Stefan
Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

van den Berg, T. H., Luther, S., & Lohse, D. (2006). Energy spectra in microbubbly turbulence. Physics of Fluids, 18, 038103-1-038103-3. doi:10.1063/1.2185688.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-1503-0

Abstract

Microbubbles (R₀=100 µm) are injected in fully developed turbulence (Re_λ=200) up to a volume concentration of 0.3%. An enhancement of the energy on small scales and a reduction on the large scales is observed, confirming theoretical prediction by I. Mazzitelli, D. Lohse, and F. Toschi [Phys. Fluids 15, L5 (2003)]. The result is a (nonuniversal) less steep slope than –5/3 in the power spectrum.