An investigation into the interface between three closely spaced axi-symmetric bodies at subsonic speed

Show simple item record Llewelyn-Davies, D. I. T. P. en_UK 1991 en_UK 2005-11-23T12:21:38Z 2005-11-23T12:21:38Z 1991 en_UK
dc.description.abstract An experimental investigation has been made into the interference effects present between three closely-spaced bodies over a range of Ø to +6 degrees of either pitch or yaw. Detailed Cp distributions were obtained over the bodies and these were successively intergrated to obtain the loading distribution along the bodies and the overall forces and moments. By analysis of contour maps representing the Cp distribution over the bodies, the loading diagrams, and the overall loads, the extent of the interference regions and their effect on the aerodynamic characteristics of the bodies were determined. A panel method was used to estimate the Cp distributions over the bodies and, as previously, the loading distributions along the bodies and the overall forces. There was close agreement between the estimated and the experimental results over the forebody and the regions where there were appreciable interference effects, but the agreement over the rear of the afterbody was less good. Although the differences between the Cp distributions did not appear large, the differences between the afterbody loadings were appreciable at the higher attitudes with the result that the experimental loads were up to double the estimate. However, an empirical correction method was developed which resulted in the corrected estimates agreeing well with experiment. Estimates were also made of the characteristics of the bodies when the attitude of the body combination was varied between Ø and -6 degrees pitch, and when yaw was varied between Ø and +6 degrees at pitch angles of +6 and -6 degrees. en_UK
dc.description.sponsorship Cranfield Institute of Technology en_UK
dc.format.extent 1963 bytes
dc.format.extent 7120266 bytes
dc.format.mimetype text/plain
dc.format.mimetype application/pdf
dc.language.iso en_UK en_UK
dc.relation.ispartofseries College of Aeronautics Report;9114 en_UK
dc.relation.ispartofseries CIT/CoA;9114 en_UK
dc.title An investigation into the interface between three closely spaced axi-symmetric bodies at subsonic speed en_UK
dc.type Technical Report en_UK

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search CERES


My Account