[skarch1994]

Hello Everyone,
I have been trying for the couple of day to converge a problem in different methods.

The problem is such that a 2D array fin is enclosed in a fluid domain. Fins are made of aluminium and the fluid domain is air considered to be IDEAL INCOMPRESSIBLE GAS. The base body of fins are subjected to 400K and natural convection is conducted; keeping ambient fluid domain at 300K.

I have been trying it for 10000 iterations for more than 30 times till now changing all possible options i.e
1- enlarging and shrinking the fluid domain
2- changing the solution method from second order upwind to first order( though second order has less chance of convergence but if converges gives exact results)
3- changing the solution controls

## Advices are warmly welcomed##

skarch994@rediffmail.com