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arXiv · 2608.08502

K41 Scaling in Bubble-Induced Turbulence Arises from Single-Bubble Wakes

Dabao Li·Zhilong Jin·Guangzhao Zhou
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Abstract

We use high-resolution, interface-resolved direct numerical simulations (DNS) to investigate the origin of Kolmogorov (K41) scaling in bubble-induced turbulence (BIT). Region-wise velocity structure functions show that the 2/3 scaling appears only within bubble wake regions. Comparison with matched single-bubble DNS further indicates that the K41 scaling observed in the full BIT field arises from the superposition of individual bubble wakes. On this basis, we derive a scaling for the dissipation rate in dilute BIT that is consistent with experimental results from the literature.

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Dabao Li, Zhilong Jin, Guangzhao Zhou. 2026-08-09. K41 Scaling in Bubble-Induced Turbulence Arises from Single-Bubble Wakes. https://arxiv.org/abs/2608.08502

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