Abstract: In this paper, using Fluent to analogue simulation to compact area airflow of compact spinning with perforated rollers，it can analyse and evaluate the air current distribution vividly and intuitively，quantitative analyse the characteristics of static pressure and distribution rules of velocity in the compact zone. The results indicate that static pressure increasing gradually from the wall of round hole to the centre of the round hole, and the round hole static pressure at air suction slot centre line is greater than other position. The air movement is not isolated between two round holes, the airflow of low position is affected by round hole, every axial velocity presents waviness with round hole turns up intervallic. The airflow of high position is more stable, every axial velocity hasn’t intervallic saltation.

Key words: perforated roller, Fluent, three dimensional flow field, simulation, compact spinning