Case study: parallel Lagrangian visualization applied to natural convective flows

Author

de la Cruz, L.M. ; García, I. ; Godoy, V. ; Ramos, E.

Author_Institution

Universidad Nacional Autonoma de Mexico, Mexico

fYear

2001

fDate

23-23 Oct. 2001

Firstpage

41

Lastpage

148

Abstract

Presents a visualization technique based on particle tracking. The technique consists in defining a set of points distributed on a closed surface and following the surface deformations as the velocity field changes in time. Deformations of the surface contain information about dynamics of the flow; in particular, it is possible to identify zones where flow stretching and foldings occur. Because the points on the surface are independent of each other, it is possible to calculate the trajectory of each point concurrently. Two parallel algorithms are studied; the first one for a shared memory Origin 2000 supercomputer and the second one for a distributed memory PC cluster. The technique is applied to a fluid moving by natural convection inside a cubic container.

Keywords

computational fluid dynamics; data visualisation; distributed memory systems; flow visualisation; natural convection; parallel algorithms; shared memory systems; workstation clusters; closed surface; computational fluid dynamics; cubic container; distributed memory PC cluster; flow foldings; flow stretching; natural convective flows; parallel Lagrangian visualization; parallel algorithms; particle tracking; shared memory Origin 2000 supercomputer; surface deformations; velocity field; visualization technique; Aerodynamics; Computational fluid dynamics; Computer aided software engineering; Equations; Lagrangian functions; Parallel algorithms; Parallel programming; Particle tracking; Supercomputers; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel and Large-Data Visualization and Graphics, 2001. Proceedings. IEEE 2001 Symposium on

Conference_Location

San Diego, CA, USA

Print_ISBN

0-7803-7223-9

Type

conf

DOI

10.1109/PVGS.2001.964402

Filename

964402