Visualizing the Flow of Engine Simulation Data

Robert S. Laramee

(Swansea)

This talk is divided into two parts. In part one,
we investigate two important, common fluid flow patterns from computational
fluid dynamics (CFD) simulations, namely, swirl and tumble motion typical of
automotive engines. We study and visualize swirl and tumble flow using three
different flow visualization techniques: direct, geometric, and
texture-based. When illustrating these methods side-by-side, we describe the
relative strengths and weaknesses of each approach within a specific spatial
dimension and across multiple spatial dimensions typical of an engineer's
analysis. Based on this investigation we offer perspectives on where and when
these techniques are best applied in order to visualize the behavior of swirl
and tumble motion.

In part two, we present a visual analysis and exploration of fluid flow
through a cooling jacket. Engineers invest a large amount of time and serious
effort to optimize the flow through this engine component because of its
important role in transferring heat away from the engine block. In this study
we examine the design goals engineers apply in order to construct, as closely
as possible, the ideal cooling jacket geometry and apply a broad range of
visualization tools in order to analyze, explore, and present the results. We
systematically employ direct, geometric, texture-based flow visualization
techniques as well as automatic feature extraction and interactive
feature-based methodology and discuss the relative advantages and
disadvantages of these approaches as well as the challenges, both technical
and perceptual involved with this application. The result is a feature rich
state-of-the-art flow visualization analysis applied to an important and
complex data set from real-world computational fluid dynamics simulations.

Please come to the talk if you want to get some impression of what
Bob does.


Tuesday 10th October 2006, 14:00
Robert Recorde Room
Department of Computer Science