Accession Number:

ADA237563

Title:

Investigation of Underwater Objects Separation in a Cross-Flow

Descriptive Note:

Final technical rept. 28 Apr 88-15 Jul 90,

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OH DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s):

Report Date:

1991-03-30

Pagination or Media Count:

62.0

Abstract:

The research project has been initiated to develop a numerical algorithm and conduct a broad investigation of flow structures and their interactions with moving and ejecting objects. The numerical method is based on a spectral element approach applied to the unsteady, incompressible Navier- Stokes equations. The equations are adopted for a moving mesh system that allows the mesh to adjust dynamically to changing geometry. The method has been used to study flow patterns and forces on moving objects. Among the investigated cases are two- and three-dimensional piston pumps, flow through an oscillating channel, an oscillating cylinder in a still fluid, an oscillating cylinder in a uniform flow, and an ejecting object from a silo.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE