Designed and built a surveillance UAV with a group of electrical engineers

UAV’s purpose was to autonomously fly over rivers and wilderness acquiring data for the Utah Water Research Lab

I developed Matlab codes to analyze static and dynamic stability, as well as optimize the motor-propeller configuration

Figure shown is an output from a lifting line code that I wrote to create preliminary airframe designs

Final product is capable of flying 35 miles per battery charge while carrying two DSLR cameras, a thermal imaging camera, and its autonomous flying avionics

http://www.popularmechanics.com/technology/aviation/news/drones-for-

science-the-first-step-in-a-civilian-uav-invasion-8210546?click=pm_latest

For further details on the lab’s work refer to the Popular Mechanics article shown below the photo

The figures below are experimental profiles measured at the inlet of the Purdue 3-Stage Axial Research Compressor. This data was taken to aid in our research of how small inlet distortion affects compressor CFD performance.

The Purdue Compressor Lab brings in its air from outside the test cell. Because of this the effects of ambient conditions needed to be studied

The following data was taken from a 2D Fluent model created to determine the effect of installing screens at our compressor inlet. The model assumes winds of 10 and 20mph coming from the bottom of the page.

Simulation of flow through inlet settling chamber, with and without

screen.

Velocity profile downstream of bellmouth.

The figure below is the velocity output from an axisymmetric fluent model representing the inlet of the Purdue 3-Stage Axial Research Compressor. This was created to determine what effects our venturi flow meter has on the flow upstream of the compressor blades.

Boundary conditions and final results matched experimental findings

HYDRA is a proprietary suite of CFD codes developed by Rolls Royce. The figure on the following slide is the mesh developed for the Purdue 3-Stage Axial Research Compressor outputted from Tecplot

CFD model used experimental inlet profiles described earlier in the presentation

Due to proprietary information final performance results can’t be shown, but CFD results showed similar trends in comparison to experimental data

One block was created for each blade row ◦ Blue blocks represent rotating frames

Mesh incorporates blade design as well as detailed under stator cavity leakage geometries

Information is passed between blade rows using a mixing plane method

Thank you for taking the time to review my professional experience. I look forward to hearing back from you.

Patrick Ball 208.521.1491 prball@purdue.edu