[johnsherjy]

I am simulating flow over a helicopter with 4 blades. I would like to find the pressure at the surface of one blade when it rotates 1 rev. I would like to create a rotating probe ie which moves with the blade motion. Could anyone please help me out how to make a rotate probe. Is there any option in the STARCCM+ software. Thanks in advance.

[Ubuntu]

Originally Posted by johnsherjy

I would like to create a rotating probe ie which moves with the blade motion. Could anyone please help me out how to make a rotate probe. Is there any option in the STARCCM+ software. Thanks in advance.

Hi John,

Did you try the point probes in Star CCM+? It has a "Follow motion" provision.

Hope this helps.

[johnsherjy]

Thank you for the response. How can i plot the transcient pressure wrt time using this probe

[Ubuntu]

Is the point probe with follow motion option working for your case?

Originally Posted by johnsherjy

How can i plot the transcient pressure wrt time using this probe

Are you trying to plot pressure Vs time graph?

[johnsherjy]

Yes i hav tried to use that..yes i want to plot the pressure vs time graph

[johnsherjy]

1)I also want to plot the same graph for number of points on the blade surface.Is there a way other than making a number of single probes.
2) Is there a way to fixed a point by selecting the surface without applying the coordinate of the point location

[Ubuntu]

Originally Posted by johnsherjy

1)I also want to plot the same graph for number of points on the blade surface.Is there a way other than making a number of single probes.

You may find line probes helpful.

Originally Posted by johnsherjy

2) Is there a way to fixed a point by selecting the surface without applying the coordinate of the point location

There are options to lock the motion and to snap point to a part.
Also I am not sure which report to use so that you can get a pressure Vs time plot.

Hope this helps.

[johnsherjy]

Hi

thank you for your response. Can you please tell how to snap the point to a part

[Ubuntu]

Originally Posted by johnsherjy

Can you please tell how to snap the point to a part

Hi
I checked it now. I think snap part and lock options are not enough for your case. Snap part constrains the motion of the point to the bounding box of the surface rather than the surface itself.

I suggest the following which I got from this thread.
1. create a plane section at the required location selecting your surface as the part.
2. The result will be a line at the required location.
3. Now create another plane normal to previous plane selecting the previous plane as part
4. You should get a point at that location
5. Use this point for pressure measurement.

I believe this point will follow the motion of your region automatically.
Hope this helps.