EXPERIMENTAL INVESTIGATION INTO THE EFFECT OF ERRORS IN BLADE SETTING ON THE LOW-SPEED PERFORMANCE OF A COMPRESSOR CASCADE.

The main findings of some recent experiments on the effect of one-blade periodic as well as non-periodic (random) setting errors on the performance of a plane compressor cascade are reported and discussed. Three types of error were introduced, namely, chordwise, cascadewise, and angular displacement in the error blade. Positively signed as well as negatively signed errors were tested. The results which are displayed in the full text of paper show that the performance of the test cascade is markedly affected by angular errors more than it is by other types of error.