Jet Fuel Mixture Activity
In this activity you will learn how to use a JAVA 3D Slicer to analyze 3D scientific data sets. This HDF three dimensional data set represents the concentration of a fuel/air mixture in a closed container for an instant in time (750 units of time) after the fuel was injected into the container. The data is from an experiment that simulated the injection of fuel into the combustion chamber of a jet engine. Each fuel concentration value is represented by the combination of the x, y, and z coordinates which define the dimensions of the box. The purpose of the experiment was to test different shapes of fuel injection ports to derive the best shape for achieving the optimal fuel/air mix. In the concentration diagram below you can see the elliptical injection port on the left; this is where the fuel is injected into the chamber. Next, the fuel flows to the right and forms an elliptical cloud of fuel and air.
In this activity you will use the JAVA 3D Slicer to view the three dimensional data set. While "slicing" through the x, y, and z planes you will observe trends in the fuel concentrations. As you move the slice through the data the observed colors will change; red stands for the highest concentration and purple for the lowest concentration.
To perform this activity you will use the first data set in the brown.hdf file (although it should already be selected, you can make sure by selecting the drop down menu from the upper right hand corner of the JAVA applet). The data set exists in the JAVA 3D Slicer's folder; it is named brown.hdf. To access the file you select the drop down menu on the top of the JAVA applet and select "Open URL", then type "brown.hdf" (without the quotes). The data set will then load on the screen and you can move the "slice" through the data to observe certain trends and concentration levels.
Original work on this page was provided by Travis Pendergraft, Paul Warner, and Brett Hall (Class of '00)
Copyright © 1999 Central Virginia Governor's School for Science and Technology Lynchburg, VA