FLUOMEG: a planar finite difference mesh generator for fluid flow problems with parallel boundaries. [In FORTRAN IV]

Technical Report · Thu May 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/5366934· OSTI ID:5366934

Kleinstreuer, C.; Patterson, M. R.

A two- or three-dimensional finite difference mesh generator capable of discretizing subrectangular flow regions (planar coordinates) with arbitrarily shaped bottom contours (vertical dimension) was developed. This economical, interactive computer code, written in FORTRAN IV and employing DISSPLA software together with graphics terminal, generates first a planar rectangular grid of variable element density according to the geometry and local kinematic flow patterns of a given fluid flow problem. Then subrectangular areas are deleted to produce canals, tributaries, bays, and the like. For three-dimensional problems, arbitrary bathymetric profiles (river beds, channel cross section, ocean shoreline profiles, etc.) are approximated with grid lines forming steps of variable spacing. Furthermore, the code works as a preprocessor numbering the discrete elements and the nodal points. Prescribed values for the principal variables can be automatically assigned to solid as well as kinematic boundaries. Cabinet drawings aid in visualizing the complete flow domain. Input data requirements are necessary only to specify the spacing between grid lines, determine land regions that have to be excluded, and to identify boundary nodes. 15 figures, 2 tables.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5366934
• Report Number(s): ORNL/TM-7115; TRN: 80-010744
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
54 ENVIRONMENTAL SCIENCES
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPUTER CODES
F CODES
HYDROLOGY
SURFACE WATERS
COMPUTER GRAPHICS
FINITE DIFFERENCE METHOD
FLUID FLOW
FORTRAN
IBM COMPUTERS
INTERACTIVE DISPLAY DEVICES
MESH GENERATION
ON-LINE SYSTEMS
POWER PLANTS
THERMAL EFFLUENTS
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS
COMPUTERS
DISPLAY DEVICES
ITERATIVE METHODS
NUMERICAL SOLUTION
PROGRAMMING LANGUAGES
580100* - Geology & Hydrology- (-1989)
520400 - Environment
Aquatic- Thermal Effluents Monitoring & Transport- (-1989)
640410 - Fluid Physics- General Fluid Dynamics