Collaborative Virtual Environments Used in the Design of Pollution Control Systems

Abstract

In this paper the authors describe the development of an interactive simulation and analysis tool for injective pollu tion control systems for commercial boilers and incinera tors. This tool uses three-dimensional, immersive visuali zation techniques in the CAVE, which allows several sci entists to collaborate to quickly and effectively place mul tiple injectors and evaluate the resulting spray coverage. The required particle dynamics calculations and several techniques for the interactive visualization of computa tional fluid dynamics data and spray simulation are dis cussed. For optimizing system performance, the particle dynamics calculations are separate from the visualization process, and data are transferred to one or more CAVEs by using the CAVEcomm message-passing library. The authors discuss the demonstration of this tool as part of the I-WAY GII testbed and present performance results for different architectures and network configurations using both ethernet and ATM connectivity. The experiments show that ethernet bandwidth is insufficient for remote, interactive collaboration.

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References

Cruz-Neira, C. , Sandin, D.J. , and DeFanti, T.A. 1993. Surround-screen projection-based virtual reality: The design and implementation of the CAVE. In Computer graphics (Proceedings of SIGGRAPH '93) Reading, MA: Addison-Wesley , pp. 135-142.

Diachin, D. , Freitag, L. , Heath, D. , Herzog, J. , Michels, W. , and Plassmann, P. 1995. Remote engineering using CAVE-to-CAVE communications. In Virtual environments and distributed computing at SC '95, edited by H. Korab and M. Brown. Los Alamitos, CA: ACM/IEEE, p. 41.

Disz, T. , Papka, M. , Pellegrino, M. , and Stevens, R. 1995. Sharing visualization experiences among remote virtual environments. In Proceedings of the International Workshop on High Performance Computing for Computer Graphics and Visualization. Berlin : Springer-Verlag, pp. 217-237.

Gropp, W. , Lusk, E. , and Skjellum, A. 1994. Using MPI: Portable parallel programming with the message-passing interface. Cambridge, MA: MIT Press .

Jones, M. , and Plassmann, P. 1994. Computational results for parallel unstructured mesh computations . Computing Systems in Engineering 5(4-6):297-309.

Korab, H. , and Brown, M. , eds. 1995. Virtual environments and distributed computing at SC '95. Los Alamitos, CA: ACM/IEEE .

Patankar, S. 1980. Numerical heat transfer and fluid flow. Washington, DC: Taylor and Francis.

PHOENICS reference manual (CHAM/TR200). 1991. London: Phoenics.

Taylor, V. , Stevens, R. , and Canfield, T. 1995. Performance models of interactive, immersive visualization for scientific applications. In Proceedings of the Intemational Workshop on High Performance Computing for Computer Graphics and Visualization. Berlin: Springer-Verlag, pp. 238-251.