August 10, 2024Journal of Fluid Mechanics

Simulation and scaling analysis of periodic surfaces with small-scale roughness in turbulent Ekman flow

View Full Paper

Ask AI

Bookmark

Surface roughness elements enhance turbulent activity and deepen the logarithmic layer in turbulent Ekman flow, producing an unexpected increase in near-surface wind veer.
Friction Reynolds number scaling remains accurate up to 2700, while the von Kármán constant reaches 0.42 for horizontal velocity across transitionally rough regimes.
Direct numerical simulation with an immersed boundary method collapses rough-wall profiles, highlighting robust roughness parameter scaling for atmospheric boundary layers.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Direct numerical simulation reveals enhanced turbulent activity and near-surface wind veer in turbulent Ekman flow, indicating accurate parameter scaling for atmospheric boundary layers.

Cite This Study

Kostelecky et al. (2024) studied this question.

synapsesocial.com/papers/68e5cc66b6db643587562836 https://doi.org/10.1017/jfm.2024.542

View Full Paper

Ask AI

Bookmark

Implication

Direct numerical simulation reveals enhanced turbulent activity and near-surface wind veer in turbulent Ekman flow, indicating accurate parameter scaling for atmospheric boundary layers.

Simulation and scaling analysis of periodic surfaces with small-scale roughness in turbulent Ekman flow

Key Points

Discussion

Implication

Cite This Study

Simulation and scaling analysis of periodic surfaces with small-scale roughness in turbulent Ekman flow

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider