Some time ago we had a request from a propeller designer to come up with an easy-to-use parametric geometry model in CAESES® for the Wageningen B-Series. There is a mathematical definition published for setting up such a marine ship propeller with some inputs (e.g. area ratio, number of blades, pitch/rake/skew data as well as leading and trailing edge information) to create a set of 2D profiles. These profiles are defined at specific radial locations. In order to generate a parametric blade surface from this radii-based information, we wrapped everything up in a feature definition, transformed them into the 3D space using a cylindrical transformation and finally skinned the 3D sections.
The result is given in the following short demo video where some parameters are changed interactively:
This parametric propeller model is directly available for productive use. All parameters can be controlled by optimization strategies for fully automated studies. Since the profile information is wrapped in a feature definition, you also have the option to access and modify this model, to further customize it to your needs. We can also quickly generate a STEP file for you based on your specifications for a B-Series propeller. Please do not hesitate to get in touch with us if you are interested in it: