Fluent abrupt behaviour

Vaibhav K

Hi to all

I am doing simple unsteady state analysis of disc where i am giving boundary conditions as constant heat flux =4000

But if i monitor same value in fluent with the help of fluent monitor it shows me 3691w/m2.

On the other hand when i reach steady state, it shows me heat going outward as 4000w/m2 which is expected.

But it shows heat entering as 3691(Constant value)