39th Aerospace Sciences Meeting and Exhibit · 2001 · 15 citations · 13 references
EngineeringAerospace EngineeringMechanical EngineeringAerodynamicsAeroelasticityFluid DynamicsAerodynamic TestingComputational AerodynamicsComputational AeroelasticitySubsonic AerodynamicsSupersonic AerodynamicsTransonic AerodynamicsLeading-edge SeparationReynolds NumberReynolds Number EffectsStatic Aeroelastic ModelingStatic Aeroelastic ResponseStatic Aeroelastic TestingSupersonic FlowTransonic Aeroelasticity
A High Speed Civil Transport configuration was tested in the National Transonic Facility at the NASA Langley Research Center as part of NASA's High Speed Research Program. The primary purposes of the tests were to assess Reynolds number scale effects and high Reynolds number aerodynamic characteristics of a realistic, second generation supersonic transport while providing data for the assessment of computational methods. The tests included longitudinal and lateral/directional studies at transonic and low-speed, high-lift conditions across a range of Reynolds numbers from that available in conventional wind tunnels to near flight conditions. Results are presented which focus on Reynolds number and static aeroelastic sensitivities of longitudinal characteristics at Mach 0.30 for a configuration without an empennage. A fundamental change in flow-state occurred between Reynolds numbers of 30 to 40 million, which is characterized by significantly earlier inboard leading-edge separation at t...
13
Albert L Braslow, E. C. Knox · University of North Texas Digital Library (University of North Texas) · 1958 · 224 citations · Full text