Accession Number:

AD0655616

Title:

DRAG OF BLUNT BODIES IN POLYMER SOLUTIONS,

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE TEST STATION CHINA LAKE CA

Personal Author(s):

Report Date:

1967-07-01

Pagination or Media Count:

22.0

Abstract:

Experiments were conducted to determine the effect of high-molecular- weight polymer additives on the drag of cones, disks, spheres, and cylinders. Drop tests were performed in plain water, and in polyethylene oxide Polyox WSR-301 solutions of 200 and 1000 ppm by weight. Test results showed that sphere drag was reduced by as much as 69 percent, while the drag of the other models were, at most, only slightly reduced by the additives. Dyed-wake photographs of falling spheres showed that the additives could alter markedly the shape of the wake by shifting the point of boundary-layer separation rearward. Author

Subject Categories:

  • Lubricants and Hydraulic Fluids
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE