|April 1, 2015, 10:48||
Quick question: Does this residual plot mean the presence of unsteadiness?
Join Date: Mar 2013
Posts: 79Rep Power: 6
Hi, (see attached image)
This is from a steady state run for natural convection. Does this mean there's a vortex near the boundary or somewhere within the flow field, because of the oscillatory behavior of the residuals?
So should I be doing a transient analysis?
|April 1, 2015, 14:00||
Join Date: Nov 2013
Posts: 13Rep Power: 5
Please run the case for some few thousands of iterations to see what will happen later.
Besides, it is good to monitor at least one relevant variable with time and see if there is a transient behavior in its value. Please note that in order to say that you solution is converged one should check the mass imbalance (difference between mass flow rate at inlets & mass flow rate at outlets).
All the best and success
|convergence, residuals fluent|
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