How to project torque on blade surface in CFD Post?

tomson199 · March 4, 2015, 06:01

Hi everyone!

I designed a rotor blades of horizontal axis wind turbine. The purpose of simulations, was to find out that the torque along blade surface is equal on every radius section. Could someone knows how to display torque on blade surface in CFD Post?

strobel · March 4, 2015, 06:29

you can write this expression : torque_y()@blade ,if the torque you want to know is on y axis.

tomson199 · March 4, 2015, 07:22

I knew about what you said, but I mean how to display torque distribution along the blade surface

Thomas MADELEINE · March 4, 2015, 10:08

Hi,
with some isoclip (on blade from spanwise 0 to spanwise 0.2) you can define some domain on your blade (in example 5 domain between 0-20%/20-40%/...)
then you can calculate and plot the torque on your isoclip.

tomson199 · March 4, 2015, 12:05

Okey, thank you very much for advice. It was helpfull to me. But do you know how to display torque on blade like forcy x on blade surface?

Thomas MADELEINE · March 5, 2015, 03:44

this is quite basic tutorial in CFD-Post
just create your variable torque()@span0-20 (your isoclip) as an expression and create a variable which refers to it... then you can plot it

March 4, 2015, 06:01	How to project torque on blade surface in CFD Post?	#1
tomson199 Member Thomas Join Date: Dec 2014 Location: Poland Posts: 49 Rep Power: 11	Hi everyone! I designed a rotor blades of horizontal axis wind turbine. The purpose of simulations, was to find out that the torque along blade surface is equal on every radius section. Could someone knows how to display torque on blade surface in CFD Post? Last edited by tomson199; March 4, 2015 at 07:19.

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March 4, 2015, 06:29		#2
strobel Member Paulo Join Date: Jun 2011 Posts: 34 Rep Power: 14	you can write this expression : torque_y()@blade ,if the torque you want to know is on y axis.

March 4, 2015, 07:22		#3
tomson199 Member Thomas Join Date: Dec 2014 Location: Poland Posts: 49 Rep Power: 11	I knew about what you said, but I mean how to display torque distribution along the blade surface

March 4, 2015, 10:08		#4
Thomas MADELEINE Senior Member Thomas MADELEINE Join Date: Oct 2014 Posts: 126 Rep Power: 11	Hi, with some isoclip (on blade from spanwise 0 to spanwise 0.2) you can define some domain on your blade (in example 5 domain between 0-20%/20-40%/...) then you can calculate and plot the torque on your isoclip.

March 4, 2015, 12:05		#5
tomson199 Member Thomas Join Date: Dec 2014 Location: Poland Posts: 49 Rep Power: 11	Okey, thank you very much for advice. It was helpfull to me. But do you know how to display torque on blade like forcy x on blade surface?

March 5, 2015, 03:44		#6
Thomas MADELEINE Senior Member Thomas MADELEINE Join Date: Oct 2014 Posts: 126 Rep Power: 11	this is quite basic tutorial in CFD-Post just create your variable torque()@span0-20 (your isoclip) as an expression and create a variable which refers to it... then you can plot it