ex5_12a.out

an introduction to boundary element methods一书源码

Example5.12 

Input 
 
Number of Boundary Elements = 16 
Number of Interior Points = 4 
Number of different Boundaries = 2 
 
Last node on  boundary  1 =  8 
Last node on  boundary  2 = 16 
 
Cordinates of The Extreme Points of the Boundary Elements 

Point    X          Y 
 1     0.0000    -2.0000 
 2     1.4142    -1.4142 
 3     2.0000     0.0000 
 4     1.4142     1.4142 
 5     0.0000     2.0000 
 6    -1.4142     1.4142 
 7    -2.0000     0.0000 
 8    -1.4142    -1.4142 
 9    -0.7071    -0.7071 
10    -1.0000     0.0000 
11    -0.7071     0.7071 
12     0.0000     1.0000 
13     0.7071     0.7071 
14     1.0000     0.0000 
15     0.7071    -0.7071 
16     0.0000    -1.0000 
 
 
Boundary Conditions 

Node		Code	Prescribed Value 
 1 			 0 			    0.0000 
 2 			 0 			    0.0000 
 3 			 0 			    0.0000 
 4 			 0 			    0.0000 
 5 			 0 			    0.0000 
 6 			 0 			    0.0000 
 7 			 0 			    0.0000 
 8 			 0 			    0.0000 
 9 			 0 			  100.0000 
10 			 0 			  100.0000 
11 			 0 			  100.0000 
12 			 0 			  100.0000 
13 			 0 			  100.0000 
14 			 0 			  100.0000 
15 			 0 			  100.0000 
16 			 0 			  100.0000 
 
 
 
Interior Point Coordinates 

Point    Xi         Yi
 1     1.3858    -0.5740
 2     1.3858     0.5740
 3     0.5740     1.3858
 4    -1.3858    -0.5740
******************************************************************************** 
 
Results 


            (X,Y)              u         q
(    0.7071,    -1.7071)     0.0000   -72.9385
(    1.7071,    -0.7071)     0.0000   -72.9385
(    1.7071,     0.7071)     0.0000   -72.9384
(    0.7071,     1.7071)     0.0000   -72.9386
(   -0.7071,     1.7071)     0.0000   -72.9386
(   -1.7071,     0.7071)     0.0000   -72.9385
(   -1.7071,    -0.7071)     0.0000   -72.9386
(   -0.7071,    -1.7071)     0.0000   -72.9386
(   -0.8535,    -0.3535)   100.0000   150.2988
(   -0.8535,     0.3535)   100.0000   150.2992
(   -0.3535,     0.8535)   100.0000   150.2989
(    0.3535,     0.8535)   100.0000   150.2989
(    0.8535,     0.3535)   100.0000   150.2989
(    0.8535,    -0.3535)   100.0000   150.2991
(    0.3535,    -0.8535)   100.0000   150.2989
(   -0.3535,    -0.8535)   100.0000   150.2990



		Interior Points 

          (Xi,Yi)              u         q_x       q_y
(    1.3858,    -0.5740)    31.5678   -89.7659    37.1827
(    1.3858,     0.5740)    31.5678   -89.7658   -37.1827
(    0.5740,     1.3858)    31.5677   -37.1827   -89.7659
(   -1.3858,    -0.5740)    31.5677    89.7659    37.1827