Revising the influence of the suspension system, method and the device which raise the precision of wind tunnel measurement

摘要

Revising the influence of the suspension system, the model (the aircraft model) with the suspension wire is arranged inside the wind tunnel in regard to the method of raising the precision of wind tunnel measurement, the sleeve which increases diameter of the suspension wire to effective diameter is located on the suspension wire. In order to decide field measurable quantity, effective diameter of the suspension wire and/or at diameter, 2 times or more are measured at the time of identical model building, last measurable quantity for is decided revision from the field measurable quantity of two or more the model. With 1st execution form, removing the sleeve which is inserted into the suspension wire at least at 3 stages, it makes effective diameter decrease. Last measurable quantity of drag force factor is decided from field measurable quantity by interpolation, influence of the suspension wire, revises the influence of interference of the model and the suspension wire. With another execution form, obtaining finite difference from just two field measurable quantities, it revises, without the sleeve at diameter of the suspension wire it decides one of field measurable quantities. This method is ideal in revision of the aerodynamics parameter which is due to the measurement inside the wind tunnel. In addition as for this invention it regards the device which executes this method. Selective figure Figure 1