| |||||
Abstract: |
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. | ||||
Paper(s): | Visual Analysis and Exploration of Fluid Flow in a Cooling Jacket by Robert S. Laramee, Christoph Garth, Helmut Doleisch, Juergen Schneider, Helwig Hauser, and Hans Hagen, in Proceedings of IEEE Visualization (Vis 2005), pages 623-630, October 23-28, 2005, Minneapolis, Minnesota ( PDF file, ~8MB ) | Visual Analysis and Exploration of Fluid Flow in a Cooling Jacket by Robert S. Laramee, Christoph Garth, Helmut Doleisch, Juergen Schneider, Helwig Hauser, and Hans Hagen, VRVis Technical Report, TR-VRVis-2005-010, April 2005 ( PDF file, ~8MB ) | |||
Full Length Video(s): | Click here for the full length supplementary 512x512 resultion MPEG video (approximately 40 MB). This video contains the full range of features applied to the data set. | ||||
Supplementary Videos: |
Click here
for a supplementary high resolution, 960x960 AVI video
(approximately 39 MB) illustrating (a subset of) advanced features
applied to the cooling jacket including:
cutting plane topology with and without vortex cores,
Sujudi-Haimes vortex core extraction,
streamsurfaces, a time color-mapped streamsurface, and
an animated particle visualization.
Click here for the 512x512 resolution of the same video (~30MB) The AVI videos are viewable with MPlayer on Linux. | ||||
Project: | Parts of this work has been carried out as part of the application research project Research Area 3 (RA3) in the VRVis Research Center, which is funded by an Austrian national research project called Kplus and AVL. | ||||
Result Images MPEG Animations: (Click on images for higher resolution version) |
The three main components of the cooling jacket: (top) the cylinder head, (bottom) the cylinder block and (middle) the gasket. |
Image Space Advection (ISA) applied highlighting
recirculation zones at the boundary surface.
| |||
Dye being used to highlight features like a separatrix
and recirculation zones at the cylinder block surface.
|
Image Space Advection (ISA) applied highlighting
recirculation zones at the boundary surface.
| ||||
Particles being used to visualize global flow behavior.
See videos above for animations.
| |||||
Streamsurfaces show the chatotic behavior of flow
as a result of flowing to the cylinder head.
|
A velocity magnitude color-mapped streamsurface.
as a result of flowing to the cylinder head.
| ||||
Cutting plane topology used to visualize vortex cores
in the longitudinal direction and recirculation on the planes.
|
Only the vortex cores resulting from cutting plane topology. | ||||
The result of Sujudi-Haimes vortex core extraction.
|
Regions of low velocity magnitude extracted interactively. | ||||
Regions of low velocity and high temperature extracted interactively. The results speaks well on behalf of the cooling jacket design. |
Regions of reverse-longitudinal flow extracted interactively.
| ||||
The scatter plot used to brush regions of reverse-transversal flow. |
Regions of reverse-longitudinal and reverse-transversal flow extracted interactively. | ||||
Regions of reverse high pressure gradients extracted interactively.
|