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Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator

Easily calculate and compute von kármán vortex shedding frequency (strouhal number) calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
12 Hz

Vortex Shedding Frequency (f_s)

Vortex Shedding Frequency (f_s)

12 Hz

Vortex Shedding Frequency Hz

12

Strouhal Number St

0.2

Cylinder Reynolds Number

250000

Shedding Period Seconds

0.08333333333333333

12 — Hz

Calculation Breakdown

  1. Applied FormulaCalculates the von Kármán vortex shedding frequency (fs in Hz) and dimensionless Strouhal number (St) past circular cylinders, subsea risers, smokestacks, and bridge cables to prevent lock-in resonance.f_s = \frac{\text{St} \cdot U_\infty}{D}, \quad \text{St} \approx 0.198 \left(1 - \frac{19.7}{Re_D}\right) \quad (300 < Re < 10^5)

Vortex Shedding Strouhal Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.03.06.09.012Vortex Shedding Frequency (f_s)

What Is the Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator?

The Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator computes results using established domain formulas, verified conversion factors, and user-entered parameters.

How Does the Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator Work?

Calculates the von Kármán vortex shedding frequency (fs in Hz) and dimensionless Strouhal number (St) past circular cylinders, subsea risers, smokestacks, and bridge cables to prevent lock-in resonance.

Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

fs=St⋅U∞D,St≈0.198(1−19.7ReD)(300<Re<105)f_s = \frac{\text{St} \cdot U_\infty}{D}, \quad \text{St} \approx 0.198 \left(1 - \frac{19.7}{Re_D}\right) \quad (300 < Re < 10^5)

Calculates the von Kármán vortex shedding frequency (fs in Hz) and dimensionless Strouhal number (St) past circular cylinders, subsea risers, smokestacks, and bridge cables to prevent lock-in resonance.

How to Use the Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Von Kármán Vortex Shedding Frequency (Strouhal Number) Calculator Example

Input Values:

flowVelocityMps:15
cylinderDiameterM:0.25
fluidKinematicViscosityM2S:0.000015
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required Hz.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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