The aim of this paper is to study the effects of normal and tangential blowing on the side force of forebodies with different cross section.Based on the measurement test of forces in a wind tunnel
the test results were presented.Furthermore
the influence of angle of attack
the blowing means
the pointing angle of tangential blowing and the cross section of the forebodies on the side force were discussed.The results show that
both normal and tangential blowing are effective means of flow control
the influence of blowing on the cone-cylinder is strongest
followed by the influence of blowing on the elliptic forebody and on chine forebody.