ufd for pitching aerofoil

saif_uzair · April 9, 2017, 02:09

Hi Guys,
I am having trouble in getting the desired angle in pitching of aerofoil using a compiling udf . Please tell me what to change in the code to get the angles such as 5, 10 , 15 ,20
Here is the code
#include"udf.h"
DEFINE_CG_MOTION(pitching,dt,vel,omega,time,dtime)
{
real a, w, p, pi;
pi = 3.14159265;
a = pi/110;
w = 2*pi*0.02;/*0.02Hz frequency*/
p = pi/2;
omega[2]= a*cos(w*time);
}

ronak · February 17, 2018, 05:36

Hi
Have you overcome ur problem?
In this UDF the pitching amplitude is pi/110( about 5 degree)? Do you get a pitching with 5 degree rotation as the result?

April 9, 2017, 02:09	ufd for pitching aerofoil	#1
saif_uzair New Member saif Join Date: Mar 2017 Posts: 7 Rep Power: 9	Hi Guys, I am having trouble in getting the desired angle in pitching of aerofoil using a compiling udf . Please tell me what to change in the code to get the angles such as 5, 10 , 15 ,20 Here is the code #include"udf.h" DEFINE_CG_MOTION(pitching,dt,vel,omega,time,dtime) { real a, w, p, pi; pi = 3.14159265; a = pi/110; w = 2pi0.02;/0.02Hz frequency/ p = pi/2; omega[2]= acos(wtime); }

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February 17, 2018, 05:36		#2
ronak Member Hanye Azimi Join Date: Oct 2016 Posts: 42 Rep Power: 9	Hi Have you overcome ur problem? In this UDF the pitching amplitude is pi/110( about 5 degree)? Do you get a pitching with 5 degree rotation as the result?