Accession Number:

AD0744314

Title:

The Optimum Shaping of Axisymmetric Bodies for Minimum Drag in Incompressible Flow

Descriptive Note:

Technical rept.

Corporate Author:

PURDUE UNIV LAFAYETTE IN AUTOMATIC CONTROL CENTER

Personal Author(s):

• Parsons, Jerome S.
• Goodson, Raymond E.

Report Date:

1972-06-01

Pagination or Media Count:

199.0

Abstract:

The hydrodynamic problem is the design of submerged minimum drag axisymmetric vehicles for a specified enclosed volume and constant speed. Drag is to be minimized. Drag reduction is to be accomplished solely through manipulation of the vehicle shape other means of drag reduction, such as polymer injection into the boundary layer, are not considered. A drag model, valid for nonseparating flows, consists of computer programs available in the literature, representative of state-of-the-art drag prediction methods.

Descriptors:

• *UNDERWATER VEHICLES
• *HYDRODYNAMIC CONFIGURATIONS
• MATHEMATICAL MODELS
• COMPUTER PROGRAMMING
• DRAG
• AXISYMMETRIC FLOW
• CURVED PROFILES
• LAMINAR BOUNDARY LAYER
• TURBULENCE
• OPTIMIZATION

Subject Categories:

• Marine Engineering
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE