# Knowledge base: Warsaw University of Technology

Back

## The spatial flow method in modeling and visualization of selected gaseous phenomena

### Jacek Raczkowski

#### Abstract

The original method of modeling and visualization of gaseous phenomena for animation is presented. The spatial flow method models flow of conventional density of gas between neighboring voxels in discrete 3D space. Flow of density is described by density distribution patterns (DDPs) defined for each voxel in volume. DDP describes what part of density flows from voxel to its neighbors. Values of DDP coefficients are related to the type of flow, to the place of voxel in volume, and to the wind. DDP is changed in time. To model of turbulence the method of modifying DDP for voxel in eddy area is included. For visualization of model the discrete ray tracing algorithm is used. Analysis of computing complexity and memory requirements for spatial flow method is presented. The method is compared to other methods known from literature.
Record ID
Diploma type
Doctor of Philosophy
Author
Title in Polish
Metoda rozpływu przestrzennego w modelowaniu i wizualizacji wybranych obiektów gazowych
Title in English
The spatial flow method in modeling and visualization of selected gaseous phenomena
Language
(pl) Polish
Certifying Unit
Faculty of Electronics and Information Technology (FEIT)
Discipline
information science / (technology domain) / (technological sciences)
Status
Finished
Start date
01-06-1995
Defense Date
11-06-1996
Title date
20-06-1996
Supervisor
Internal reviewers
External reviewers
Juliusz Lech Kulikowski Juliusz Lech Kulikowski,, External affiliation of publication: Polish Academy of Sciences
Krzysztof Marciniak Krzysztof Marciniak,, Undefined Affiliation
Pages
92
Keywords in English
-
Abstract in English
The original method of modeling and visualization of gaseous phenomena for animation is presented. The spatial flow method models flow of conventional density of gas between neighboring voxels in discrete 3D space. Flow of density is described by density distribution patterns (DDPs) defined for each voxel in volume. DDP describes what part of density flows from voxel to its neighbors. Values of DDP coefficients are related to the type of flow, to the place of voxel in volume, and to the wind. DDP is changed in time. To model of turbulence the method of modifying DDP for voxel in eddy area is included. For visualization of model the discrete ray tracing algorithm is used. Analysis of computing complexity and memory requirements for spatial flow method is presented. The method is compared to other methods known from literature.
PKT classification
410000
KBN classification
28-informatyka
EU classification
8030
Thesis file
• File: 1
Raczkowski.pdf
Request a WCAG compliant version

Uniform Resource Identifier
urn:pw-repo:WEITI-8016ad70-ca31-4388-9312-3d13490c0aee