nuflo is an engineering company that supports digitalization of engineering processes in fluid mechanics.

After a period of inactivity you may need to reload the webpage for the tool to work properly. If you find yourself using these tools a lot, consider a local installation. Please feel free to contact us at johannes.kneer@nuflo.de for support.

*The code for this tool can be found over at github.*

*More interactive tools are located at toolbox.nuflo.de.*

This is a tool for a quick estimation of the boundary layer thickness on a flat plate. For this estimation we use the momentum loss thickness based on two simple correlations:

The momentum loss thickness of a laminar boundary layer $\delta_l$ (Blasius solution): $$ \delta_l = 0.664 \cdot \sqrt{\frac{\nu \cdot x}{u}} $$

For a turbulent flow: $$ \delta_t = 0.0142 \cdot x \cdot \left(\frac{u\cdot x}{\nu}\right)^\left(-\frac{1}{7}\right) $$

Depending on the physical problem these may not be the right choice, if unsure ask an experienced engineer.

Reference: Schlichting - Boundary Layer Theory (Chapter 6.5)