What question did this study set out to answer?

To develop a curvature-corrected mixing-length model for improved simulations of turbulent boundary layers.

August 10, 2026Journal of Fluids Engineering

A Curvature-Corrected Wall Model for Axisymmetric Turbulent Boundary Layers

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Authors

SJSamuel JohnsonPennsylvania State University SSSven SchmitzPennsylvania State University XYXiang YangPennsylvania State University

Discussion

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Overview

Randomized trial demonstrates improved accuracy of a curvature-corrected wall model in turbulent boundary layers, suggesting better simulations in engineering applications.

Key Points

To develop a curvature-corrected mixing-length model for improved simulations of turbulent boundary layers.
Derived a new mixing-length model based on axisymmetric law of the wall.
Utilized the model to estimate wall shear stress variations with Reynolds numbers in wall-modeled large-eddy simulation (WMLES).
Compared model predictions against experimental measurements for validation.
The new model shows improved agreement with experimental data at Rea = 4.330 × 10^3 in the log-law region.
For Rea > 10^5, the model's predictions converge to those of the baseline model.
Estimated wall shear stress increments were <1% for Rea > 10^5 and >10% for Rea around 10^3.

Cite This Study

Johnson et al. (2026) studied this question.

synapsesocial.com/papers/6a797d299c20a9bbd31844a3 https://doi.org/10.1115/1.4072501

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August 10, 2026Journal of Fluids Engineering

A Curvature-Corrected Wall Model for Axisymmetric Turbulent Boundary Layers

View Full Paper

Ask AI

Bookmark

Authors

SJSamuel JohnsonPennsylvania State University SSSven SchmitzPennsylvania State University XYXiang YangPennsylvania State University

Discussion

Member takes

Overview

Randomized trial demonstrates improved accuracy of a curvature-corrected wall model in turbulent boundary layers, suggesting better simulations in engineering applications.

Key Points

To develop a curvature-corrected mixing-length model for improved simulations of turbulent boundary layers.
Derived a new mixing-length model based on axisymmetric law of the wall.
Utilized the model to estimate wall shear stress variations with Reynolds numbers in wall-modeled large-eddy simulation (WMLES).
Compared model predictions against experimental measurements for validation.
The new model shows improved agreement with experimental data at Rea = 4.330 × 10^3 in the log-law region.
For Rea > 10^5, the model's predictions converge to those of the baseline model.
Estimated wall shear stress increments were <1% for Rea > 10^5 and >10% for Rea around 10^3.

Cite This Study

Johnson et al. (2026) studied this question.

synapsesocial.com/papers/6a797d299c20a9bbd31844a3 https://doi.org/10.1115/1.4072501

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