Flow in channel with rib turbulators and double-row bleed holes

The effect of Reynolds number and mass flow ratio on the discharge coefficient and pressure distribution for the flow in channel with rib turbulators and double-row bleed holes are investigated. The Reynolds numbers range from 30000 to 150000 and mass flow ratios are between 0.09 and 0.22. The results indicate that when mass flow ratios are low, the discharge coefficients decrease along the flow direction. With the increase of Reynolds number, the discharge coefficients increase firstly and then do not vary significantly. Along the flow direction, the total pressure coefficients decrease firstly and then keep the level and decrease again in each case. In all the positions along the flow direction, the lowest total pressure coefficient is achieved in case of Reynolds numbers ranging from 60000 to 90000. The total pressure coefficients increase with the increase of mass flow ratio.