On the way to an integrated mesh generation system for industrial applications
Abstract
The main features of some specialized batch modules, which were developed recently to meet the requirements of a grid generation for complex configurations, are described. One module is a combination of an algebraic grid generator for the determination of a surface grid and the far field boundary, and an hyperbolic grid generator for the sectionwise calculation of the corresponding orthogonal internal grid lines. Two other modules are concentrated on solution adaptive grids - either using algebraic redistribution proportional to the curvature of a typical flow filed describing function, or by solving elliptical partial differential equations resulting from the transformation of the Poisson equation from the physical space into the computational space. Adaption of the grid to pressure gradients and to the total pressure loss is done by replacing the source terms. The first part, however, is the description of the graphic-interactive program-system INGRID, which already comprises several standard techniques to generate composite volume grids around arbitrary complex configurations, and which has the potential to become an integrated system to match the demands for a general productive mesh generation method. As application examples several grids are shown, illustrating actual problems of external aircraft aerodynamics, ground-vehicle aerodynamics and of internal pipe flow.
- Publication:
-
In AGARD
- Pub Date:
- March 1990
- Bibcode:
- 1990amgc.agarR....S
- Keywords:
-
- Aerodynamic Characteristics;
- Computational Fluid Dynamics;
- Computational Grids;
- Grid Generation (Mathematics);
- Partial Differential Equations;
- Pipe Flow;
- Poisson Equation;
- Algebra;
- Boundaries;
- Computer Graphics;
- Curvature;
- Far Fields;
- Modules;
- Pressure Gradients;
- Fluid Mechanics and Heat Transfer