Reynolds Number for Non-Circular Tubes Calculator

Calculate Reynolds Number









Formula

The formula to calculate the Reynolds Number (Re) is:

\[ Re = \frac{\rho \cdot u_{\text{Fluid}} \cdot L_c}{\mu_{\text{viscosity}}} \]

Definition

Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.

Example Calculation

Let's assume the following values:

Using the formula:

\[ Re = \frac{400 \cdot 12 \cdot 1.09}{1.02} \approx 5129.41176470588 \]

The Reynolds Number is approximately 5129.41176470588.

Conversion Chart

Density (kg/m³) Reynolds Number
350 4,488.235294117646845
360 4,616.470588235294599
370 4,744.705882352941444
380 4,872.941176470588289
390 5,001.176470588236043
400 5,129.411764705881978
410 5,257.647058823529733
420 5,385.882352941176578
430 5,514.117647058824332
440 5,642.352941176471177
450 5,770.588235294117112