Pressure Loss of Arrays of In-Line Blocks on the Wall of Parallel Channel

Abstract

Pressure distributions of arrays of In-line blocks on the wall of parallel channel were measured. The square block height and the pitch of the blocks were varied. The effects of the number of line and row and the other factors on the pressure loss were clarified. The pressure drop is divided into three regimes : the inlet, intermidiate and outlet ports of the arrays of blocks. The pressure drop on the inlet port and the pressure rise on the outlet port depend mainly on the function of the opening ratio of the channel and the pressure drop on intermidiate port depends on the blockage ratio, the pitch and numbers of row of the blocks. The pressure loss can be formulated and the recomended equation agrees with the experimental data within ±10%.