[morteza08]

hi dear all
a question?
what is the different between structured and unstructured mesh to obtain good results in fluent?
for example? for a 3d impingement jet, what is the different between these two types? i want to obtain yplus=1 and good distribution for nusselt number

[cfd_newbie]

Originally Posted by morteza08

hi dear all
a question?
what is the different between structured and unstructured mesh to obtain good results in fluent?
for example? for a 3d impingement jet, what is the different between these two types? i want to obtain yplus=1 and good distribution for nusselt number

Hi Morteza,
It will be difficult to say which one is better, it depends on a lot of other factors like type of problem and the solver involved. But generally saying my experience says for problems like yours(internal flows) a carefully constructed structured mesh will surely give good results. If you are not in a hurry (since you can construct unstructured meshes more quickly) go for a fine structured mesh which should have even more fine elements near the jet.