Mixing chamber with vortex generators for flowing gases

A mixing chamber for mixing a gaseous secondary flow that is introduced into a gaseous, ducted main flow, the secondary flow having a substantially smaller mass flow than the main flow, comprising:

• a duct in which flow takes place in a flow direction;
• a plurality of vortex generators arranged in the duct adjacent to one another and without intermediate spaces over a dimension of the duct transverse to the flow direction of the duct, a height of the vortex generators being at least 50% of one of a height of the duct and a complete height of a duct part associated with the vortex generators, and
• means for introducing the secondary flow into the duct in an immediate region of the vortex generators;
• wherein each vortex generator has three surfaces extending from a duct wall around which flow takes place freely, which surfaces extend longitudinally in the flow direction of the duct, a first surface forming a top surface and a second and third surface forming side surfaces,
• wherein the side surfaces each on a single edge abut the duct wall and enclose an acute angle,
• wherein a top surface edge extending transverse to the flow direction of the duct is in contact with the duct wall,
• and wherein longitudinally directed edges of the top surface abut longitudinally directed edges of the side surfaces protruding into the flow duct, the top surface extends at a predetermined angle of incidence to the duct wall.