Objective:-

To provide the general overview of current status, the functions and operation of

A menu-driven stand-alone utility for creating GEOMetry files which can be interpreted as VR objects.

Contents:-

1. Current capabilities
2. Operational Overview
3. Outstanding Tasks for completion
4. Suggestions for further developments

VRGEOM is designed to provide a user-friendly tool for creating objects participating in fluid-thermal simulations.

VRGEOM handles a number of basic object classes from which the variety of different shapes can be created via user-specified object parameters.

At present, thirteen classes of basic objects have been made available for Cartesian coordinate system. They are:

1. Cone
2. Cube or rectangular box
3. Cylinder
4. incomplete cone Frustrum
5. Frustrum with rectangular orifice
6. Pyramid with rectangular orifice
7. Pyramid with cylindrical orifice
8. Ring or toroid
9. Ring pipe
10. Sphere
11. hollow sphere or Sperical shell
12. Spiral
13. Spiral pipe

• Cones: 1; 2; 3.
• Cubes: 1; 2; 3.
• Cylinders: 1; 2; 3.
• Frustra: 1; 2; 3; 4; 5; 6.
• Rings and pipes: 1; 2; 3; 4; 5; 6.
• Spheres and shells: 1; 2; 3.
• Spirals and pipes: 1; 2; 3; 4.

VRGEOM can also convert XYZ files, such as PHOENICS uses for describing BFC grids and geometries, into the files which are interpreted as specific objects. The examples are 1, 2, 3, 4, 5, 6, 7 and 8.

Once created these objects can be loaded into the VR editor, dimensioned, oriented and combined to obtain the desired geometry.

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• Main window
• Use of the menu
• Methods of input
• Saving and loading input data

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Main window

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• [File] - to select, manipulate and save input data files;
• [Help] - to obtain on-line help;
• [Please select] field - to select basic object;
• [Property] - to select type of color shading;
• [Tool bars] - to activate directly some of the dialog boxes.

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• activation of command icons using mouse, eg [File];
• selection of options using 'buttons', eg [Cone];
• input of data fields (numerical or character) via keyboard - field to be se is selected by mouse;
• scrolling and selection from the list.

Following input, when appropriate:

• [Make facets] creates geometry file;
• [Reset] resets data;
• [Exit] quits window.

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All user-input data are saved in the file of specified name by clicking [File]/[Save GEOfile].

They can be loaded back by clicking [File]/[Open GEOfile], when required.

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