reversed flow
 

hy , i am new in use of cfd and i have some a difficulte a probleme to simulate the air in side a tunnel how have a special geometrie i have meshed the geometry and when i simuklate with some boundary i have got this message
"reversed flow " and in each itteration at the end he stop on one of these itteration and " divergence " where is the probleme ???

Due to people like you the forum is full of topics with the same question.... try the option search and find the answer.... may be the reversed flow is not the only problem here...