What question did this study set out to answer?

The aim is to compare classical wall scaling with novel dissipative scaling for fourth-order structure functions in turbulent channel flow.

January 18, 2026Physics of Fluids

Comparison between wall and dissipative scalings for fourth-order structure functions in a fully developed turbulent channel flow

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Authors

DLD. LiuHarbin Institute of Technology RAR. A. AntoniaUniversity of Newcastle Australia SHSergio HoyasUniversitat Politècnica de València

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Implication

Compares wall and dissipative scaling of fourth-order structure functions in turbulent channel flow, suggesting superiority of dissipative scaling in various regions.

Key Points

The aim is to compare classical wall scaling with novel dissipative scaling for fourth-order structure functions in turbulent channel flow.
Analyzed fourth-order velocity and scalar structure functions in a turbulent channel flow.
Utilized classical wall parameters and novel dissipative parameters for scaling.
Examined comparative effectiveness of both scalings across different distances from the wall.
Both scaling methods show similar collapse at moderate distances from the wall.
Dissipative scaling better represents structure functions in the very-near-wall region.
Dissipative structure functions collapse well at small scales far from the wall, while wall parameter distributions do not.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/696c77afeb60fb80d1395e5e https://doi.org/10.1063/5.0304120

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Implication

Compares wall and dissipative scaling of fourth-order structure functions in turbulent channel flow, suggesting superiority of dissipative scaling in various regions.

Comparison between wall and dissipative scalings for fourth-order structure functions in a fully developed turbulent channel flow

Discussion

Member takes

Implication

Key Points

Cite This Study

Comparison between wall and dissipative scalings for fourth-order structure functions in a fully developed turbulent channel flow

Discussion

Member takes

Implication

Key Points

Cite This Study

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