The IAR high Reynolds number two-dimensional test facility: A description of equipment and procedures common to most 2-D airfoil tests

This report describes features and operational procedures which are common to the great majority of wind tunnel test projects conducted in the Two-Dimensional (2-D) Test Facility of the Institute for Aerospace Research 1.5m Trisonic Blowdown Wind Tunnel in Ottawa, Canada. lt is intended to be used as a reference document describing the 'facility...

New transonic test sections for the NAE 5FTx5FT trisonic wind tunnel

The NAE 5ftx5ft blowdown wind tunnel has undergone a major upgrade of its transonic testing capabilities. Two entirely new test sections, one for testing two-dimensional models (2D) and one for testing three-dimensional models and reflection plane models (3D), have been constructed. The two test sections are parts of the so-called Roll-in Roll...

A comparison of methods for calibration and use of multi-component strain gauge wind tunnel balances

A method is presented for calibration of strain-gauge balances which does not require that the components can be loaded independently. Applicable to both 'internal' and 'extemal' types of balance, the procedure uses a single varying calibration load to determine all linear and non-linear calibration coefficients. Constant 'secondary' loads on...

Analysis of wall interference effects on ONERA calibration models in the NAE 5-ft.x5-ft. wind tunnel

The measurements on three geometrically similar aircraft models by ONERA are used to analyse lift interference effects in the solid and perforated wall test sections of the NAE 5-ft. X 5-ft. test facility. The prediction of the angle of attack correction for both test sections is based on the representation of the model by lifting lines and the...

The three-dimensional separation of a plane, incompressible, laminar boundary layer produced by a rankine oval mounted normal to a flat plate

The incompressible, laminar boundary layer flow on a flat plate, in proximity to eval protuberances of 2:1 and 4:1 axis ratio, has been investigated by experiment and by analysis. A comparison het ween the measured and calculated positions of the primary separation line yielded the same reasonabie agreement that was found when assessing the...

The three-dimensional separation of a plane incompressible laminar boundary layer produced by a circular cylinder mounted normal to a flat plate

The properties of a laminar, incompressible boundary layer in proximity to a circular cylinder protruding from a flat wall have heen investigated by experiment and by calculation to yield the limiting streamlines and the three-dimensional primary separation line. Use was made of the NAE water tunnel for the experiment. Fluorescent dye filaments...