Hydrodynamic Shape Optimization
Hydrodynamic Shape Optimization

Hydrodynamic Shape Optimization

Moshman Research is tasked with finding the optimal shape which will extract the most energy from the water flowing around it. We use a multi-level approach by looking at 2D flow, 3D flow on a thin cylinder and full 3D flow. While the 2D flow is an efficient starting point, it cannot capture the interaction of wakes trailing of blades ahead in the direction of rotation. The video shows this effect in the form of swirling eddies attached to the lower side of the blade.

This image shows a smooth flow without blade-wake interactions. This configuration generates much more power than when the blade-wake interactions are present.

This images shows the result of shape optimization in 2D comparing the initial profile (colored) and the optimal profile which maximizes lift in the flow condition (white).

Shape optimization in full 3D showing the original surface (yellow) and new design iteration (purple).

From 2D profiles, we build up a full 3D blade and export as CAD for CFD meshing.