(23) 



related by the system of Equations 23, with all the partial derivatives 

 evaluated at the k^^ iteration cycle, 





^^2W -,_ . ^^2W ^p - _=.J^ 



The values of dzi, dQ-y, . . , dz^, dQ^^ dz^, dQ^ are defined in the system of 



Equations 24, 



dz^ = zf - zf (24) 



dz 



Jctl _ k 



The solution of the system of Equations 22, which consists of the equations 

 for interior points, together with the equations arising from the external 

 boundary conditions and junctions, will provide values of zY^ , QY^ , ■ ■ • , zY^ , 



q\^'^ z\^^ , i.e., values of the variables at the k*-^ iteration cycle. The 



procedure can be repeated as many times as required until the difference 

 between the values of any variable in two consecutive iteration cycles falls 



26 



