Presentation Title

Real-time Diagnostics in Unsteady Flows

Faculty Mentor

Beverley McKeon (mentor), Morgan Hooper (co-mentor)

Start Date

23-11-2019 8:45 AM

End Date

23-11-2019 9:00 AM

Location

Markstein 105

Session

oral 1

Type of Presentation

Oral Talk

Subject Area

engineering_computer_science

Abstract

To characterize flow experimentally, the McKeon group uses particle image velocimetry (PIV). PIV is a method of quantitative flow visualization, which consists of a laser, cameras, and software. The group also uses a Captive Trajectory System (CTS), an electro-mechanical system installed on a water tunnel that can move during a test, on which various objects can be mounted. While an effective method of determining flow velocity experimentally, traditional PIV setups are not able to make data available in real time. To facilitate future real-time analysis, software was written for the custom operation of a FLIR Flea3 camera to take images appropriate for PIV and ensure synchronous operation with the CTS, which will increase the rate at which processed vector fields are available. In addition, a camera mount was manufactured to capture images in the CTS reference frame. The success of the program was verified by flying a trajectory and characterizing the flow (using black dye flow visualization) around a cylinder moving in the shape of an ellipse.

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Nov 23rd, 8:45 AM Nov 23rd, 9:00 AM

Real-time Diagnostics in Unsteady Flows

Markstein 105

To characterize flow experimentally, the McKeon group uses particle image velocimetry (PIV). PIV is a method of quantitative flow visualization, which consists of a laser, cameras, and software. The group also uses a Captive Trajectory System (CTS), an electro-mechanical system installed on a water tunnel that can move during a test, on which various objects can be mounted. While an effective method of determining flow velocity experimentally, traditional PIV setups are not able to make data available in real time. To facilitate future real-time analysis, software was written for the custom operation of a FLIR Flea3 camera to take images appropriate for PIV and ensure synchronous operation with the CTS, which will increase the rate at which processed vector fields are available. In addition, a camera mount was manufactured to capture images in the CTS reference frame. The success of the program was verified by flying a trajectory and characterizing the flow (using black dye flow visualization) around a cylinder moving in the shape of an ellipse.