The width of an object immersed in a fluid stream, plays a key role in assessing his drag.
The width of an object subjected to the forces of aerodynamic or hydrodynamic drag determines the Reynolds number.
With Mecaflux standard
objects are configurable and reynolds numbers and midship are updated according to the width you enter. The calculation of the resistance force of aerodynamic or hydrodynamic drag is refreshed by clicking on "Compute": 