Accession Number:

ADA037717

Title:

Solution of Transient Problems in Free Surface Hydrodynamics.

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

• Boris,J. P.
• Fritts,M. J.

Report Date:

1977-02-01

Pagination or Media Count:

93.0

Abstract:

Numerical algorithms for a Lagrangian treatment of incompressible hydrodynamics with free surfaces are developed and applied. The method centers about the use of a triangular, general-connectivity finite-difference mesh. The added flexibility arising from this triangular mesh permits accurate long-time solutions of complicated flows with shear and waves in free-surface problems. The techniques discussed here are applied to nonlinear free-surface waves and to unstable shear flow beneath a free surface in two dimensions. Author

Descriptors:

• *SURFACE WAVES
• *NUMERICAL METHODS AND PROCEDURES
• *HYDRODYNAMICS
• SHEAR PROPERTIES
• ALGORITHMS
• TRANSIENTS
• GRIDS(COORDINATES)
• FINITE DIFFERENCE THEORY
• NONLINEAR SYSTEMS
• INCOMPRESSIBLE FLOW
• LAGRANGIAN FUNCTIONS

Subject Categories:

• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE