hi , i m working on simulation of a reactor. and the polar coordinate sysyem i use.i give all inputs correctly. when i run the problem it shows no results. but when i change the system from polar to cartesian coordinate , without changing any other parameter and run the problem it shows results. so can any body tell me that why is it so? or only my phoenics version have this problem.

You can send me Q1 file. Pl. mnetion PHOENICS version, Name of Organisation with complete address