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Strouhal Number

ASecurity

Sub-skill of viv-analysis: Strouhal Number (+2).

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  • Added September 9, 2026
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Security analysis

A100/100

Scanned September 9, 2026

npx -y skills add vamseeachanta/workspace-hub --skill strouhal-number --agent claude-code

Installs into .claude/skills of the current project.

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SKILL.md
---
name: viv-analysis-strouhal-number
description: 'Sub-skill of viv-analysis: Strouhal Number (+2).'
version: 1.0.0
category: engineering
type: reference
scripts_exempt: true
---

# Strouhal Number (+2)

## Strouhal Number


| Geometry | Strouhal Number |
|----------|-----------------|
| Smooth cylinder | 0.2 |
| Rough cylinder | 0.21 |
| Straked cylinder | 0.14-0.18 |

## Reduced Velocity Ranges


| Condition | Reduced Velocity Range |
|-----------|----------------------|
| Cross-flow VIV onset | 4 - 8 |
| In-line VIV onset | 1 - 3.5 |
| Lock-in region | 5 - 7 |

## Added Mass Coefficients


| Configuration | Ca |
|---------------|-----|
| Circular cylinder in infinite fluid | 1.0 |
| Near seabed (gap/D = 0.5) | 1.2 |
| Near seabed (gap/D = 0.1) | 2.0 |

Attribution

vamseeachantaView sourceSee grades on GitHubMore from vamseeachanta

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