Error during Compiling UDF for Rotor Motion
I had written a UDF to give motion to udf about a point.
The case is a 2D case. When I try to compile the udf it gives an error that the UDF is not written for 2D. Could anyone have a look at it. Appreciate the Help. #include "udf.h" #include "stdio.h" #include<math.h> DEFINE_CG_MOTION(ROtor_Motion,dt,vel,omega,time,dt ime) { Thread *tf = DT_THREAD (dt); face_t f; Node *v; real time1, time2, theta1, theta2; int n; real CGravity[ND_ND]; real xnew[ND_ND]; real count; real omega,e; real trans[ND_ND]; SET_DEFORMING_THREAD_FLAG (THREAD_T0 (tf)); Omega=1047.2; /*angular vel*/ e=0.16; /*eccentricity*/ time1 = time; time2 = time+dtime; theta1= time1 * omega; /*whirling angles at two consecutive times*/ theta2= time2 * omega; trans[0]=e*(cos(theta2)cos(theta1)); /* change in x & y coordinate*/ trans[1]= e*(sin(theta2)sin(theta1)); CGravity[0] =0; CGravity[1] =0; count =0; begin_f_loop (f, tf) /*loop to change the position of each node*/ { F_CENTROID(xnew,f,tf); CGravity[0] = CGravity[0]+xnew[0]; CGravity[1] = CGravity[1]+xnew[1]; count = count + 1; f_node_loop (f, tf, n) { v = F_NODE (f, tf, n); if (NODE_POS_NEED_UPDATE (v)) { NODE_POS_UPDATED(v); NV_V (NODE_COORD (v), +=, trans); } } } end_f_loop (f, tf); CGravity[0] = CGravity[0]/count; CGravity[1] = CGravity[1]/count; Message ("%f %f \n", CGravity[0], CGravity[1]); } 
Anyone with UDF expertise??

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