I've been working to replicate an model aircraft prop made by APC (16x12E).
After creating the prop and refining the shape, I am noticing that the flow trajectories show the airflow centered around the hub (see picture 1), with little to no airflow from the mid-point of the blades and up. This caused me concern until I looked at the cut plot of the velocity. In the cut plot I do see velocity changes all the way up the blade (see picture 2). Is this an issue with the flow trajectories, or is my model not creating a proper flow field? I'm hoping to use this model in simulations down the line, so I want to make sure that the flow off the prop is realistic.
Please let me know if Any additional details are needed.
The tip of the blade is moving twice as fast as the middle of the blade.
The second picture looks pretty accurate to me.
The first looks incomplete.