Abstract
An experimental study on validity and improvement of base pressure correction for a bluff-base body with hemisphere nose using MSBS (Magnetic Suspension and Balance System) has been conducted. Force and pressure distribution data on the model base were examined for several parameters; angles of attack 0–7.5º, Reynolds number ReD=7.6×104, with or without a sting and diameters of the sting. These results showed that the base pressure correction using the pressure data near the sting could have validity at the case of 0º of angle of attack only. Besides we could propose a new accurate method to calculate base-pressure axis forces.
