Learning Forum

[JC]

Problem with Pressure and Thrust Distribution Visualization in Fluent CFD POST for Two-Bladed Propeller


Hello everyone,

I'm running a simulation for a two-bladed propeller in ANSYS Fluent and need help with two specific issues:

1) Pressure Distribution Visualization:
I’m trying to display the pressure distribution at different sections of the propeller blade. I’ve already created a polyline at the intersection of the blade with a plane at specific radial positions. However, when I plot this data in an XY chart, I’m struggling to align the X-axis in the chordwise direction (from leading to trailing edge). NB: The propeller blade is twisted toward the tip.
Could someone guide me on how to properly set the X-axis of the chart to represent the chordwise direction?

2) Thrust Distribution Plotting:
I’d like to plot the thrust (loading) distribution over the blade. Is there a function or method in ANSYS Fluent or CFD Post that would allow me to visualize thrust distribution along the blade or at specific sections of the blade? Any suggestions for achieving this would be greatly appreciated!

Thanks in advance for your help!

[CFD_Friend]

Hi,

Since the polyline goes around the blade, there will be two values at the same axial position of the blade. You could use the axial distance as the variable for x axes. 

I would suggest you export the pressure values along with x yand z values of the line using export feature in cfd post and then manually plot it outside for better control.

[JC]

Thank you! 

2) for the thrust distribution along the propeller blade  in radial direction, I need to find the thrust force at different sections of the blade. However the force acting on the plane at different position along the blades in Y-axis direction (propeller axis direction) does not seem to be accurate. 

So how to find the thrust force at different sections of the blade ?