STABILITY OF A LAMINAR BOUNDARY-LAYER OF GAS ON A PERMEABLE SURFACE FOR DIFFERENT MECHANISMS OF SUCTION

The influence of the suction system design on the characteristics of a laminar boundary layer is studied theoretically. The results of numer ical calculations are given. Two types of suction systems are consider ed. Type I is characterized by a permeable surface with slots connecte d with a single suction chamber. In suction systems of type II, each s lot of the permeable surface is connected to its own individual suctio n chamber. The stability of the boundary layer may be regulated by pro perly choosing the parameters of the suction system.