PowerVIZ Examples
PowerVIZ has extensive visualization and animation capabilities that allow users to view and analyze results from PowerFLOW simulations. Following are examples demonstrating some of these capabilities.
Real-Time Volume Visualization
PowerVIZ 4.2 offers some exciting new visualization capabilities including real-time volume visualization. Volume visualization is a technique for directly displaying a 3D scalar field; users may choose either direct volume rendering or volume-based isosurface rendering. PowerVIZ exploits the massive floating-point capabilities of modern graphics processors (GPUs) to perform volume visualization—impractical on conventional CPU systems as is too compute-intensive.
For higher resolution versions of the videos below, please click to download:
Animations
Animations are useful for demonstrating flow and model details that simple, static images cannot show. In this case, the external aerodynamic flow structure of the BMW E39 Touring model (below,left) is compared to the E39 Limousine (below, right). Here, an isosurface is shown with a plane colored by velocity.
PowerVIZ animations of wake structure comparison between two vehicle models.
Images courtesy of BMW AG. Click on either image to enlarge.
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Aeroacoustics & Thermal:
In the example below, PowerVIZ allows users to for the first time see coherent pressure fluctuations extracted from standard PowerFLOW results using a band pass filter in PowerSPECTRUM. These fluctuations produce high wind noise levels...often in the 35-45 Hz frequency range.
In the image below from Land Rover, for this highly-complex engine compartment simulation , both the aerodynamic and thermal results are visualized using Exa PowerVIZ. Arrows indicate the direction of flow movement while colors denote the temperature range.
Variety of Options:
The options when visualizing with PowerVIZ are nearly endless. Add color to surfaces, use streamribbons, planes and isosurfaces... all with options to color according to your simulation results. Below, a BMW motorcycle external aerodynamic simulation uses all of the above. Click on the image below for a larger version.
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