Flow Field Measurements of a Jet in Crossflow with a Laser Velocimeter

Abstract : Tests were conducted in a low speed wind tunnel (V/STOL) to measure the velocity field of a jet issuing from a flat plate with crossflow. Velocity components were measured with a dual-scatter laser velocimeter at effective velocity ratios of 0.125 and 0.250. The data yielded velocity vectors along lines normal to the jet centerline in three planes parallel to the plane of symmetry. Indications of the flow field turbulence were also measured.