CFD Online Discussion Forums

CFD Online Discussion Forums (
-   Main CFD Forum (
-   -   Questions for simple algorithm programming (

Zhaoxiaobin211 January 1, 2013 11:32

Questions for simple algorithm programming
My fortran 'simple' program diverges at the 15th step with all tentative relaxation factor
,and at the break point,a wave form appears besides the at inflow boundary.I will appreciate it if someone tell me why and the image at the breakpoint is showed below.
And how comes the oblique line?The exit is twice the width of that of the entrance.(Vector velocity is set for zero ear all the walls.)

All times are GMT -4. The time now is 21:10.