Flow simulation and analysis on FDF of compact spinning based on FLUENT

When designing FDF system of compact spinning,the negative pressure drops resulting from spindles at the front and back of the machine should be kept within allowance.For this reason,flow simulation and analysis of FDF on compact spinning is undertaken based onk-etwo-equation model,and the 3-D turbulent flow of the FDF was simulated numerically by 3-D software of Gambit and CFD software Fluent.The flow rule and characteristics and pressure drop distribution of its internal flow field are obtained.The results indicate that the pressure drop in the main pipe must be kept minimum and the energy consumption in the branch pipes should be reduced in order to maintain a constant air pressure at the inlet.The calculated value of the internal flow field of FDF based on simulation using CFD technology is in good agreement with the actual measurement value.