Abstract

The present work gives the results of flow visualization studies and six ompone1 force measurements on an ogive cylinder body at high angles of attack in the sub-: and transonic flow regime. High angle of attack aerodynamic investigations had not been done before at the VKI, so a new wind tunnel model support system, six component force balance ana water tunnel contraction and test section were desig-ned and constructed to enable the present investigation to be performed. Force measurements and flow visualization studies were carried out on both a sharp ncse body and a blunt nosed body of (k/d)ToT=18 and 17.4, respectively. The side force induced by the asymmetric vortex pattern which develops on the leeward side of an ogive cylinder was the primary focus of this investigation. A detailed review of previous investigations was performed. The results obtained in>. is investigation were found to agree quite well with previous results. EThe flow visualization studies were carried out in the VKI WT-1 water tunnel and I