返回Google圖書搜尋

Aerodynamic Loading Characteristics at Mach Numbers from 0.80 to 1.20 of a 1/10-scale Three-stage Scout Model

出版	National Aeronautics and Space Administration, 1961
URL	http://books.google.com.hk/books?id=X8H9TTDruIUC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋Aerodynamic loads results have been obtained in the Langley 8-foot transonic pressure tunnel at Mach numbers from 0.80 to 1.20 for a 1/10-scale model of the upper three stages of the Scout vehicle. Tests were conducted through an angle-of-attack range from -8° to 8° at an average test Reynolds number per foot of about 4.0 x 106. Results indicated that the peak negative pressures associated with expansion corners at the nose and transition flare exhibit sizeable variations which occur over a relatively small Mach number range. The magnitude of the variations may cause the critical local loading condition for the full-scale vehicle to occur at a Mach number considerably lower than that at which the maximum dynamic pressure occurs in flight. The addition of protuberances simulating antennas and wiring conduits had slight, localized effects. The lift carryover from the nose and transition flare on the cylindrical portions of the model generally increased with an increase in Mach number.