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This study examines the relationship between turbulence intensity and friction in two types of flow: zero-pressure-gradient and pipe flows.

August 2, 2026WaterOpen Access

Friction-Based Scaling of Streamwise Turbulence Intensity in Zero-Pressure-Gradient and Pipe Flows

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Exploration establishes scaling of turbulence intensity in wall-bounded flows, suggesting unifying principles for simulations.

This study examines the relationship between turbulence intensity and friction in two types of flow: zero-pressure-gradient and pipe flows.
Comparative analysis of asymptotic scaling laws for ZPG and pipe flows
Derivation of a correction term linked to Reynolds number from mean-velocity profiles
Characterization of turbulence intensity using friction-based equations
Turbulence intensity in ZPG flow relates to the product of the drag and boundary-layer thickness, aligning with pipe flow dynamics
Identified a Reynolds-number-dependent correction linking the two types of flows
Established a common scaling that can improve computational fluid dynamics simulations.

N. Basse (2026) studied this question.

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