[widi_5]

i have the problem to simulate flue gas desulfurization in exhaust gas stack.
i have been modelled the geometry using ansys designmodeler with geometry i already attached.
the wind inlet is 7 m/s and gas inlet is 5 m/s and then i simulate in fluent.
but the result from the first iteration is greater Y+ : 15000
My question is :
1. how to check Y+ in spesific area in my model ?
2. what aspect that inflence Y+ ?
3. my mesh is good or not?